IB Diploma Programme Explained | Subjects, Core & Assessment

The IB Diploma Programme is a two-year pre-university programme for students aged 16 to 19. It is not simply six difficult school subjects placed side by side. The programme combines six subject choices with a compulsory core: Theory of Knowledge (TOK), the Extended Essay (EE) and Creativity, Activity, Service (CAS). Its design deliberately keeps breadth while allowing depth through Higher Level (HL) courses.

This guide is for students and families searching for IB Diploma Singapore, IB subjects, IB HL vs SL, IB score out of 45, TOK, Extended Essay, CAS, IB internal assessment, IB university requirements and how to choose an IB subject combination. The focus is the programme itself. Specialist tutor pages can help with particular subjects; this page explains the architecture that makes those subjects part of one diploma.

Current IB guidance states that students take six subjects, with a minimum of three and a maximum of four at Higher Level; the remaining subjects are Standard Level. The IB recommends 240 teaching hours for HL and 150 for SL. Subjects are graded from 1 to 7. The diploma requires at least 24 points together with other minimum conditions and completion of TOK, EE and CAS. TOK and the EE can contribute up to three additional points; CAS does not add points but is a required part of the diploma.

The shortest useful explanation: six subjects plus a core

Part of the Diploma	What it does	Why it matters
Six subjects	Provides academic breadth and depth across subject groups	Creates the main 1–7 subject scores
Higher Level	Greater scope and depth; 240 recommended teaching hours	Often important for university prerequisites
Standard Level	Broadens the programme with 150 recommended teaching hours	Maintains breadth while controlling workload
Theory of Knowledge	Examines how knowledge claims are built and justified	Assessed through an exhibition and a 1,600-word essay
Extended Essay	Independent research project	Culminates in a 4,000-word paper
Creativity, Activity, Service	Experiential learning across the programme	Required for diploma completion; not added to the points total

1. The Diploma Programme is a programme, not a bag of certificates

A full IB Diploma candidate is not simply sitting six unrelated examinations. The student is enrolled in one programme with common expectations about inquiry, reflection, academic integrity, research, communication and independent work. That common structure changes how the workload feels. A subject decision in August can create consequences months later when internal assessments, the Extended Essay and university applications converge.

This is one reason families should compare actual school delivery. Two IB World Schools can offer the same diploma but differ in subject availability, timetable design, EE supervision, counselling, CAS culture, calendar management and how well they prevent assessment deadlines from clustering.

2. The six subject groups

The DP curriculum is organised across six subject groups: studies in language and literature; language acquisition; individuals and societies; sciences; mathematics; and the arts. The IB also permits certain substitutions, including taking an additional subject from another group instead of an arts subject, subject to programme rules.

The architecture is designed to preserve breadth. A student who wants to become an engineer still studies language and an individuals-and-societies subject. A student oriented toward the humanities still studies Mathematics and a Science. The programme therefore delays extreme specialisation compared with some advanced secondary pathways.

Studies in language and literature: what the group contributes

Programme role. The group exists to develop close reading, interpretation, analysis, written and oral communication through literary and/or non-literary texts depending on the course. In the Diploma Programme, this is not a decorative category. The subject contributes to the broad educational design of the diploma, and its assessment has to be managed alongside five other subjects and the core.

Choosing well. The student should think about language strength, prior experience, reading stamina and the requirements of the specific Language A course available at the school. A sound choice answers three questions simultaneously: Can the student succeed at this level? Does the subject support likely future pathways? Does the overall six-subject combination remain sustainable?

HL decision. HL usually adds greater scope, depth and assessed demand. It can suit students who enjoy sustained textual analysis and may be relevant to later study in literature, law, humanities, communications or other writing-intensive fields. HL should therefore be treated as a strategic depth commitment, not simply an honour label.

Common failure mode. A fluent everyday speaker may still struggle if analytical writing, literary vocabulary or comparative argument is weak. Conversely, a strong analytical reader can underperform if deadlines and written organisation are poor. The repair is to examine real syllabus material, sample assessment tasks and the school’s own entry expectations before finalising the combination.

Transfer. The skills travel into TOK, the EE and almost every subject that requires evidence-based writing because the student learns to distinguish claim, evidence, interpretation and effect. That transfer is one reason the DP feels integrated when it is taught well: subject knowledge remains disciplinary, but research, communication and reflection recur across the programme.

Language acquisition: what the group contributes

Programme role. The group exists to develop communication in an additional language and deepen intercultural understanding through reading, writing, listening and speaking. In the Diploma Programme, this is not a decorative category. The subject contributes to the broad educational design of the diploma, and its assessment has to be managed alongside five other subjects and the core.

Choosing well. The correct course depends on prior exposure and the school’s placement rules. Students should not select a language level only because they believe it will be easy; the course should match their actual language history. A sound choice answers three questions simultaneously: Can the student succeed at this level? Does the subject support likely future pathways? Does the overall six-subject combination remain sustainable?

HL decision. At HL the language demands are broader and deeper. Students encounter richer texts and are expected to sustain more sophisticated expression and analysis. HL should therefore be treated as a strategic depth commitment, not simply an honour label.

Common failure mode. Weak listening or oral confidence can remain hidden if preparation focuses only on written grammar. A language course is a four-mode system, and unevenness matters. The repair is to examine real syllabus material, sample assessment tasks and the school’s own entry expectations before finalising the combination.

Transfer. Language study supports international-mindedness, cross-cultural communication and the ability to notice how meaning changes with audience, register and context. That transfer is one reason the DP feels integrated when it is taught well: subject knowledge remains disciplinary, but research, communication and reflection recur across the programme.

Individuals and societies: what the group contributes

Programme role. The group exists to study human behaviour, institutions, economies, societies and historical or contemporary systems through disciplines such as Economics, Geography, History, Global Politics, Psychology and related subjects. In the Diploma Programme, this is not a decorative category. The subject contributes to the broad educational design of the diploma, and its assessment has to be managed alongside five other subjects and the core.

Choosing well. Choose by genuine disciplinary interest and university relevance. Economics is not a universal substitute for History; Geography is not simply environmental science. Each subject asks different questions and uses different forms of evidence. A sound choice answers three questions simultaneously: Can the student succeed at this level? Does the subject support likely future pathways? Does the overall six-subject combination remain sustainable?

HL decision. HL study can involve additional content, deeper evaluation and more demanding assessment. It can be strategically important for university paths that value a particular discipline, but many humanities and social-science degrees also care about writing and analytical strength more generally. HL should therefore be treated as a strategic depth commitment, not simply an honour label.

Common failure mode. Students sometimes select a subject because friends say it is ‘scoring’. That is a poor basis for two years of reading, writing and internal assessment. The repair is to examine real syllabus material, sample assessment tasks and the school’s own entry expectations before finalising the combination.

Transfer. These subjects teach source evaluation, model use, argument, case analysis and the ability to distinguish description from explanation. That transfer is one reason the DP feels integrated when it is taught well: subject knowledge remains disciplinary, but research, communication and reflection recur across the programme.

Sciences: what the group contributes

Programme role. The group exists to build scientific understanding, experimental reasoning, data interpretation and subject-specific models across Biology, Chemistry, Physics, Computer Science, Design Technology and other current DP sciences. In the Diploma Programme, this is not a decorative category. The subject contributes to the broad educational design of the diploma, and its assessment has to be managed alongside five other subjects and the core.

Choosing well. University prerequisites matter strongly. Medicine, engineering, life science and related programmes may specify exact HL sciences or Mathematics combinations. A sound choice answers three questions simultaneously: Can the student succeed at this level? Does the subject support likely future pathways? Does the overall six-subject combination remain sustainable?

HL decision. HL usually carries a substantially larger body of knowledge and skill. The 240-hour expectation signals the deeper scope rather than merely more homework. HL should therefore be treated as a strategic depth commitment, not simply an honour label.

Common failure mode. Students can be attracted by a career label without enjoying the actual subject method. Wanting medicine does not automatically make Chemistry enjoyable; wanting engineering does not automatically make Physics intuitive. The repair is to examine real syllabus material, sample assessment tasks and the school’s own entry expectations before finalising the combination.

Transfer. Science subjects develop model-based reasoning, practical design, uncertainty handling and the discipline of linking claims to evidence. That transfer is one reason the DP feels integrated when it is taught well: subject knowledge remains disciplinary, but research, communication and reflection recur across the programme.

Mathematics: what the group contributes

Programme role. The group exists to develop quantitative, symbolic and analytical reasoning through the current Mathematics pathways, including Analysis and Approaches and Applications and Interpretation. In the Diploma Programme, this is not a decorative category. The subject contributes to the broad educational design of the diploma, and its assessment has to be managed alongside five other subjects and the core.

Choosing well. This is one of the highest-stakes course-selection decisions because universities can publish precise Mathematics prerequisites. Students should inspect several likely degree destinations before choosing course and level. A sound choice answers three questions simultaneously: Can the student succeed at this level? Does the subject support likely future pathways? Does the overall six-subject combination remain sustainable?

HL decision. HL Mathematics can be essential or strongly preferred for Mathematics-intensive degrees. It is also a workload decision: interest, prior algebraic fluency and problem-solving stamina matter. HL should therefore be treated as a strategic depth commitment, not simply an honour label.

Common failure mode. Choosing an easier-looking pathway without checking future eligibility can close doors. Choosing the most advanced option purely for prestige can also consume time needed elsewhere if the student lacks readiness. The repair is to examine real syllabus material, sample assessment tasks and the school’s own entry expectations before finalising the combination.

Transfer. Mathematics supports sciences, economics, computing, data reasoning and any field where models and quantitative evidence matter. That transfer is one reason the DP feels integrated when it is taught well: subject knowledge remains disciplinary, but research, communication and reflection recur across the programme.

The arts: what the group contributes

Programme role. The group exists to develop creative practice, analysis, performance, making and reflection through subjects such as Visual Arts, Music, Theatre, Dance and Film where offered. In the Diploma Programme, this is not a decorative category. The subject contributes to the broad educational design of the diploma, and its assessment has to be managed alongside five other subjects and the core.

Choosing well. Students can often replace the arts with an additional subject from another group, so the decision is partly philosophical: preserve formal arts study or specialise further elsewhere. A sound choice answers three questions simultaneously: Can the student succeed at this level? Does the subject support likely future pathways? Does the overall six-subject combination remain sustainable?

HL decision. HL arts courses can be demanding because creative work, process documentation, analysis and performance or portfolio development require sustained production over time. HL should therefore be treated as a strategic depth commitment, not simply an honour label.

Common failure mode. Students sometimes assume an arts subject will be a relief from academic work. In reality, production deadlines and portfolios can be intense precisely because the work cannot always be completed through last-minute memorisation. The repair is to examine real syllabus material, sample assessment tasks and the school’s own entry expectations before finalising the combination.

Transfer. Arts study develops observation, interpretation, iteration, creative decision-making and the ability to make meaning through non-verbal forms. That transfer is one reason the DP feels integrated when it is taught well: subject knowledge remains disciplinary, but research, communication and reflection recur across the programme.

3. Higher Level and Standard Level: depth without a prestige hierarchy

The IB requires a minimum of three and a maximum of four Higher Level subjects, with remaining courses taken at Standard Level. HL and SL use the same 1–7 grade scale, but HL covers a greater body of knowledge, understanding and skills. The IB recommends 240 teaching hours for HL compared with 150 for SL.

A 7 at SL and a 7 at HL are both top subject grades, but they do not mean the courses had identical scope. Universities therefore often publish subject-level requirements such as a particular HL grade. This is not a judgement that SL is inferior; it is a prerequisite decision about the preparation expected for that degree.

The strongest subject combination is not ‘four HLs because four is more than three’. The strongest combination is the one that meets future prerequisites while keeping enough time and cognitive bandwidth for the full programme.

4. Why four HLs can become a systems problem

A fourth HL can be appropriate for some students, but it adds scope inside a programme that already contains TOK, EE, CAS, internal assessments and university applications. The question is not only whether the student can survive the extra content. It is whether the fourth HL creates enough value to justify the opportunity cost.

Ask what the fourth HL unlocks. If no likely university requires it and the student would gain more from improving three core HL subjects, the additional load may be vanity rather than strategy. On the other hand, a highly capable student exploring several competitive pathways may have a defensible reason to keep four HLs.

5. Theory of Knowledge: the programme asks how knowledge is justified

Theory of Knowledge is mandatory. Current IB guidance states that TOK is assessed through an exhibition and a 1,600-word essay. The subject asks students to reflect on the nature of knowledge and on how we know what we claim to know.

TOK is often misunderstood as philosophy-lite or as a place for abstract opinions. Strong TOK work is more disciplined. It examines knowledge claims through examples, concepts, methods, perspectives and limitations. The student needs to move beyond ‘everyone has a different opinion’ toward questions about evidence, authority, interpretation and justification.

The TOK exhibition

The exhibition brings TOK into concrete objects and real-world contexts. Students choose objects that help explore a prescribed prompt and explain how the objects illuminate the knowledge question. The challenge is not finding exotic objects; it is making a precise connection between the object and the argument.

Weak exhibition work describes the object. Strong work uses the object as evidence for thinking about how knowledge operates in a real situation.

The TOK essay

The essay demands sustained argument. The student must interpret the prescribed title, build a line of reasoning, use examples that genuinely test the claim, consider counter-perspectives and reach a qualified conclusion. The 1,600-word limit creates compression pressure: every example must earn its place.

TOK preparation improves when students practise small knowledge questions across their ordinary subjects. A Physics model, a historical source, an economic indicator and a literary interpretation all offer material for asking how evidence becomes knowledge.

6. The Extended Essay: 4,000 words of independent research

The Extended Essay is a required component of the DP core. Current IB guidance describes it as an independent piece of research culminating in a 4,000-word paper. The process develops research-question design, investigation, argument, synthesis, evaluation and academic communication.

The best EE topic is not the most impressive-sounding topic. It is one narrow enough to investigate properly with methods and sources available to a school student. A broad topic such as ‘climate change’ is not a research question. A focused question about a defined variable, text, event, dataset or case can become one.

Choosing the EE subject

The EE usually relates to one of the student’s DP subjects, with World Studies allowing an interdisciplinary route. The subject choice matters because each discipline has different evidence rules. A Literature EE cannot be judged as if it were a Chemistry investigation; a History EE cannot ignore source provenance.

The research question

A strong question is answerable, bounded and analytical. It creates a problem that can be investigated, not merely a topic to summarise. Students should test whether the question can produce a defensible argument within 4,000 words and the available evidence.

Source discipline

Research quality depends on source quality. Students should distinguish primary and secondary sources, peer-reviewed research, institutional reports, reference material and informal commentary. Citation is not decoration; it shows where claims came from and allows the reader to inspect the evidence.

The supervisor relationship

The EE is independent but supervised. A good supervisor helps the student clarify scope, process and standards without writing the argument. The student owns the research decisions and final text.

The danger of the late EE

A 4,000-word paper written in a panic can damage both quality and the rest of the programme because it steals time from subject assessments. The EE should be treated as a long project with staged milestones: question, initial sources, method, outline, draft, feedback, revision and final checks.

7. Creativity, Activity, Service: required but not point-scored

CAS is the third core component. The IB states that CAS is not formally assessed through a points score, but students reflect on their experiences and provide evidence of achieving the required learning outcomes. CAS must be completed for the diploma.

This distinction is important. CAS is not ‘free points’ and should not be treated as a race to log hours. Its educational purpose is experiential learning: initiative, perseverance, collaboration, problem solving, reflection and responsible participation.

Creativity

Creativity can involve arts and other experiences that require creative thinking. The useful question is not whether an activity looks artistic but whether the student is genuinely generating, interpreting, designing or making.

Activity

Activity involves physical exertion contributing to a healthy lifestyle. It can include sport and other sustained physical activities. The programme aims for experience and growth, not elite athletic performance.

Service

Service is an unpaid and voluntary exchange with a learning benefit for the student and respect for the rights, dignity and autonomy of those involved. Strong service begins with a real community need rather than a student searching for an activity that looks impressive on an application.

The CAS project

Students must undertake a CAS project. The IB describes meaningful projects as purposeful, challenging and reflective, with student initiative. A strong project is manageable enough to complete but substantial enough to require planning and collaboration.

8. Assessment: external exams are only part of the picture

IB assessment uses both internal and external components. For many subjects, final written examinations form a major part of the grade because standardised examinations offer high reliability. At the same time, subjects can include internal assessments, oral work, investigations, performances or other tasks that are completed over time.

Internally assessed work is not simply a classroom grade invented by the teacher. IB systems use moderation and standardisation processes to align marking with global criteria. The exact assessment model belongs to the current subject guide, so students should never prepare from a generic ‘IB IA template’ without checking the actual course.

Why internal assessment matters

Internal assessment can reward sustained inquiry and subject-specific practice. It also creates a planning burden. An IA completed thoughtfully over time can demonstrate skills that are difficult to sample in a final exam; an IA started too late can collide with five other subjects and the core.

Why final examinations still matter

Final exams provide common conditions. Students must retrieve and apply knowledge independently under time. A learner who performs well only with unlimited revision cycles needs a separate exam-performance plan.

Assessment criteria

IB tasks are marked against published criteria or mark schemes appropriate to the subject. Students should understand criteria as a description of quality, not as a game of inserting magic phrases. The strongest preparation learns the underlying skill and then checks whether the evidence satisfies the criterion.

9. Scoring: the 45-point headline and the rules underneath it

Each of the six DP subjects receives a grade from 1 to 7. Six 7s produce 42 subject points. TOK and the Extended Essay together can contribute up to three additional points, creating the familiar maximum of 45.

CAS does not add points, but completion is required. The IB also applies minimum-performance conditions beyond the headline total. Current IB guidance says a candidate needs at least 24 points and must meet the other diploma requirements. A student with more than 24 can still fail to receive the diploma if another required condition is not satisfied.

This is why the phrase ’24 points is a pass’ is incomplete. The total is necessary but not sufficient.

10. Diploma Programme course results are not the same as the diploma

Students can take individual DP courses without completing the full diploma. Students who attempt the diploma but do not satisfy every requirement can also receive DP course results. These results still represent assessment under DP standards, but the award is different.

Admissions forms often distinguish ‘IB Diploma’ from ‘IB Courses’. Applicants must report the qualification accurately rather than assuming a collection of course scores is administratively identical to the awarded diploma.

11. Subject selection is an admissions decision made two years early

The IB’s own course-selection guidance advises students to choose with higher-education goals in mind. This matters because universities can require particular HL subjects. A student who chooses the wrong Mathematics level may discover at age 18 that an engineering or Economics pathway is closed even with an excellent overall score.

The safe method is backward design: identify several plausible university destinations → record recurring prerequisites → compare them with school subject availability → select the strongest sustainable combination.

Twelve subject-selection cases

Engineering-leaning student

Mathematics and Physics usually deserve close attention at HL. The exact Mathematics course matters. Chemistry or Computer Science may strengthen some pathways, but requirements vary by university.

The student should not add every technical subject automatically. A coherent combination with excellent performance is stronger than an overloaded programme chosen for appearances.

Medicine-leaning student

Chemistry and Biology requirements differ internationally. Some universities specify Chemistry HL, some require two sciences, and some care about Mathematics level.

Because medicine is prerequisite-heavy, families should compare several target countries before finalising the DP combination.

Economics or business student

Economics may be useful, but Mathematics requirements can become more important for quantitative Economics degrees. Business Management is not necessarily a required precursor to Business degrees.

The student should distinguish studying a school subject from meeting university quantitative prerequisites.

Computer Science student

Mathematics is commonly important, and Computer Science can be useful where available. Physics can also support some technical routes.

Programming experience outside class can help, but university eligibility still follows formal subject requirements.

Law student

Law programmes often value strong analytical reading and writing but may not require a specific school subject. Language A, History, Economics or other essay-based subjects can all develop relevant capabilities.

The student should check country-specific admissions tests and language requirements rather than searching for one mandatory ‘Law subject’.

Humanities student

History, Literature, Geography, Global Politics, Philosophy and related subjects can create strong preparation, but the exact combination should preserve language and writing strength.

A student should choose disciplines they genuinely want to read and write about for two years.

Architecture student

Mathematics and Physics can matter at some institutions, while portfolio requirements can dominate elsewhere. Visual Arts can support portfolio development but is not universally required.

Check both academic prerequisites and portfolio expectations because they are separate admission gates.

Psychology student

Psychology can provide direct exposure, but many universities accept students without school Psychology. Mathematics or Biology requirements can matter for science-oriented programmes.

Do not assume the DP subject title is the prerequisite; inspect the actual university policy.

Undecided strong all-rounder

Preserve optionality with a balanced combination and avoid dropping advanced Mathematics or a second Science if those areas remain plausible future directions.

The student can narrow later as evidence about interests improves.

Creative student

Arts HL can be a genuine academic commitment alongside strong language and humanities subjects. The student should manage portfolio or performance workload carefully with EE and university applications.

Creative pathways still need disciplined research, writing and project management.

Bilingual student

A strong language profile can lead to a bilingual diploma under IB criteria where conditions are met. More importantly, bilingual study can expand academic and cultural range.

Do not pursue bilingual status as a badge if it forces an unsuitable subject choice.

Student with one weak subject

The DP requires breadth, so a learner cannot simply eliminate every uncomfortable domain. The goal is to choose the most suitable course within the required architecture and support the weak link early.

A weak SL can consume disproportionate time if neglected until final exams.

12. Workload is a calendar problem

IB workload becomes difficult when every requirement is treated separately. In reality, six subjects, EE, TOK, CAS and university applications compete for the same finite weeks. Strong students can still become overwhelmed if schools and families focus only on intellectual ability and ignore calendar design.

A useful DP planner tracks long deadlines first, then works backward. EE milestones, IA windows, oral assessments, mock examinations, TOK submission periods and application deadlines should be visible together. Weekly planning then protects the next irreversible deadline rather than whichever task feels loudest.

13. The three-layer IB calendar

Layer	What belongs here	Planning rule
Long horizon	EE, major IAs, TOK essay, university applications	Start before urgency
Medium horizon	unit tests, drafts, oral preparation, CAS project milestones	Review weekly
Short horizon	problem sets, reading, flashcards, daily practice	Schedule around the medium horizon

14. Internal assessment should not become six simultaneous emergencies

The IA calendar is partly school-controlled. Good schools sequence deadlines so students can produce authentic work without impossible collision. Students still need personal discipline because a draft deadline ignored in one subject can invade the preparation window of another.

The practical rule is to finish the intellectual work early enough that the final week is for checking, not discovery.

15. Academic integrity

The DP places strong emphasis on authentic work. Students must distinguish help from authorship. Teachers can teach, question and give permitted feedback; students remain responsible for the submitted work.

Generative AI makes this boundary more important. AI can assist with brainstorming, clarification or feedback where school and IB rules permit, but it should not become an invisible author. Students must follow current school and IB academic-integrity guidance, cite sources properly and be able to explain their own work.

16. Using AI without outsourcing the Diploma

Use AI to generate practice questions, not final assessed answers.
Ask for counterarguments to test an essay plan.
Ask for explanations of difficult concepts, then verify them against course sources.
Use AI to create retrieval prompts from notes, not to replace reading.
Never upload confidential or restricted assessment material contrary to rules.
Keep a record of permitted AI use when the school requires disclosure.
Treat fluent output as unverified until checked.

17. Revision: six subjects require a portfolio strategy

A student cannot revise six DP subjects using one method. Mathematics needs problem solving; Language A needs reading and essay planning; a Science needs conceptual retrieval plus data and application; History may need source work and essay construction; Language B needs sustained exposure across modes.

The common spine is retrieval → application → feedback → repair. The surface activity changes by subject.

18. The error log

For each subject, track the type of failure rather than simply the mark. Was the problem missing knowledge, misunderstanding the question, weak evidence, time pressure, careless algebra, poor structure or forgotten vocabulary?

A mark tells you how much went wrong. An error classification tells you what to do next.

19. Mock examinations are diagnostic

Mocks matter because they expose performance under time before final exams. Their value is not the emotional impact of the score. It is the evidence they create about timing, retrieval, question choice and stamina.

After a mock, rebuild at least one missed question without notes. That tests whether feedback became capability.

20. Predicted grades

Predicted grades can play an important role in university applications, depending on country and application cycle. They are forecasts, not awarded results. Schools use evidence and professional judgement to produce them under their own procedures.

Students should focus on the underlying evidence—classwork, assessments, IA progress and mock performance—rather than negotiating only the symbol.

21. Results day

Final IB results combine the subject and core outcomes into the formal award. Students should read both the total and individual subject grades because university offers may specify conditions at both levels.

If a result is unexpected, follow the school’s current IB results and enquiry procedures. Do not rely on informal social-media advice about remarks or grade changes.

22. Recognition and university admission

The IB Diploma is recognised widely, but recognition never eliminates programme-specific requirements. Universities can specify total points, HL grades, subject combinations, language evidence and additional tests.

A family comparing countries should build a small admissions matrix with columns for total score, required HL subjects, minimum HL grades, language requirement, admissions test, interview/portfolio and deadline.

23. Credit and advanced standing

Some universities grant credit or advanced standing for strong IB results, often depending on specific HL subjects. Others grant none. This is a receiving-institution policy and should be checked separately from admission.

Do not choose an IB subject purely for hypothetical future credit if the subject is a poor fit for the student or weakens essential prerequisites.

24. IB versus A-Level: the useful comparison

The IB Diploma protects breadth and integrates a common core. A-Level systems commonly permit earlier specialisation in fewer advanced subjects. That difference affects workload and learning style more than reputation slogans.

Students who enjoy several disciplines and manage long projects well may value the DP structure. Students with a clear narrow academic direction may prefer greater specialisation where available. The receiving university, school quality and subject prerequisites matter in both cases.

25. IB versus AP

AP usually consists of individual advanced courses and examinations layered onto a school diploma. The IB Diploma is a full programme with six subjects and a core. AP scores can support credit or placement depending on the university, while the IB Diploma itself functions as a school-leaving/pre-university qualification.

The two can coexist in international education, but they should not be compared as though both were single identical packages.

26. IB versus IGCSE

IGCSE is usually an upper-secondary qualification around ages 14–16. The IB Diploma is a later pre-university programme around ages 16–19. Many students progress from IGCSE into IB, but one is not the higher grade band of the other.

The transition involves both academic depth and a new project-management burden through the DP core and internal assessments.

27. What parents should ask an IB school

Which HL and SL subjects are actually available each year?
What are the school’s entry requirements for HL Mathematics and Sciences?
How are EE supervisors assigned?
How are IA deadlines staggered?
What does CAS look like beyond logging experiences?
What university-counselling support is provided?
How are predicted grades determined?
What support exists for students whose first subject combination becomes unsuitable?
How does the school teach academic integrity and responsible AI use?
How many students usually take four HLs, and why?

28. What students should ask before enrolling

Which three subjects would I still want to study deeply when I am tired?
Which subjects are university prerequisites for my likely paths?
Can I manage several long projects at once?
Do I enjoy reading and writing enough for the language/humanities demands of my combination?
Is my Mathematics choice driven by readiness and destination, not fear or prestige?
Which subject am I choosing because other people say it is easy?
What will I do when several deadlines collide?

29. A two-year operating model

Period	Main work	What good control looks like
First term	Confirm subject fit, establish study systems, begin CAS	No silent gaps; change unsuitable choices early where school rules allow
Middle of Year 1	Build IA foundations, clarify EE direction	Major projects have questions and evidence, not only topics
End of Year 1	Strengthen weak subjects, EE research, early mocks	Student knows error patterns and summer priorities
Start of Year 2	Complete substantial IA/EE work, university planning	Long projects move toward completion before final-exam pressure
Middle of Year 2	TOK/IA closure, mocks, targeted revision	No major assessed project remains intellectually unfinished
Final phase	Exam retrieval, timed practice, sleep and pacing	Revision becomes precise rather than frantic

30. IB failure atlas: what breaks and how to repair it

Choosing subjects by reputation

The student asks which subject is easiest to score rather than which subject fits ability, interest and future prerequisites. This often works for several months because the new course still feels manageable, then motivation collapses when the work becomes specialised. Repair by reading the subject brief, attempting sample material and checking university requirements before treating reputation as evidence.

Taking four HLs without a reason

The student can technically handle four HLs but cannot explain what the fourth one unlocks. Extra workload reduces time for three strategically important HLs, EE and IAs. Repair by defining the purpose of every HL. If the fourth subject protects a genuine pathway, keep it. If it only signals ambition, reconsider.

Dropping the wrong Mathematics route

A student chooses Mathematics based on fear, friend advice or an assumption that all universities treat the courses interchangeably. Later a target programme requires a different level. Repair by checking several plausible degree prerequisites before final selection and revisiting them before course-change deadlines close.

Starting the Extended Essay with a topic instead of a question

The student says “My EE is about social media” and collects dozens of sources without an analytical direction. Research expands but argument never forms. Repair by narrowing object, place, period, variables or texts until a question can be answered within 4,000 words using accessible evidence.

Treating TOK as opinion writing

The student fills paragraphs with “I think” statements and broad claims about different perspectives. The essay sounds reflective but lacks analysis of how knowledge is produced or justified. Repair by using concrete examples, precise claims and genuine counter-perspectives tied to the prescribed title.

Treating CAS as an hour counter

The student accumulates activities but cannot explain learning, initiative or reflection. The programme becomes compliance rather than experiential education. Repair by choosing fewer meaningful experiences, defining a personal challenge, documenting decisions and completing a purposeful CAS project.

IA procrastination

The student delays research questions, data or drafts because the final submission seems distant. Several subjects then become urgent at once. Repair by treating the internal school draft deadline as the real deadline and setting an earlier personal deadline for the intellectual work.

Polishing before the argument exists

The student spends hours formatting graphs, citations or slides before the analysis is stable. Beautiful presentation conceals a weak research question. Repair by sequence: question → evidence → analysis → conclusion → presentation.

Using AI as a ghostwriter

Generated prose sounds fluent and accelerates output, but the student loses ownership and may violate academic-integrity rules. Repair by using AI only within current school/IB permissions for explanation, practice or critique, while keeping assessed reasoning and writing authentically the student’s.

Over-revising the strongest subject

Students naturally return to subjects where work feels satisfying. The strongest HL receives more attention while the weakest SL quietly approaches a failing condition. Repair with a portfolio dashboard that tracks risk, not preference.

Ignoring language acquisition until oral assessment

The student completes grammar exercises but avoids listening and speaking. Written performance looks acceptable while spontaneous communication remains fragile. Repair with regular authentic listening, conversation and short oral-response practice from the start.

Memorising model essays

The student copies structures and phrases that worked in one task. When the question changes, the memorised answer misses the command. Repair by practising planning under varied prompts and explaining why each paragraph belongs.

Treating predicted grades as negotiation

A student focuses on persuading teachers to raise a predicted grade rather than improving the evidence that supports it. Repair by asking what performance indicators are missing and building them before the school’s prediction deadline.

Leaving EE and applications for the same month

The student underestimates how much attention personal statements, references, admissions tests and application research consume. EE quality drops or applications become rushed. Repair by moving the EE’s intellectual heavy lifting earlier in the programme.

Ignoring sleep as an academic variable

A high-achieving student cuts sleep to preserve every commitment. Retrieval, mood and error control deteriorate, creating more work. Repair by treating sleep as part of the study system and removing low-value commitments before removing recovery.

Confusing busy with controlled

The student studies every evening but cannot name the next irreversible deadline, weakest topic or unresolved IA risk. Repair with a weekly review that converts tasks into priorities and closes open loops.

Using one revision method for six subjects

Flashcards feel productive, so the student applies them everywhere. They help factual retrieval but do not train essays, source analysis, proofs, oral responses or practical design. Repair by matching practice to the performance demanded in each subject.

Reading mark schemes without reattempting

Feedback becomes recognition: the student sees why an answer is correct but never reconstructs the solution. Repair by closing the mark scheme and redoing the question from a blank page after a delay.

Choosing an EE for prestige

The topic sounds impressive or connected to a fashionable field, but the student lacks accessible data, sources or disciplinary method. Repair by choosing a question that can be investigated well with available evidence.

Waiting for motivation

The student treats long projects as creative tasks that require the right mood. Deadlines compress. Repair by defining small scheduled actions: one source annotation, one data cleaning task, one outline section, one experiment run.

31. Twelve operating routines that keep the Diploma under control

Weekly portfolio review

Once a week, list every subject plus TOK, EE and CAS. Mark each as green, amber or red based on evidence, not feeling. Red means a deadline, concept or assessed component could materially threaten progress. The review should produce three actions for the coming week, not a giant list.

Fortnightly prerequisite check

During the subject-selection period and university-research phase, maintain a live table of likely degrees and required HL subjects. This prevents late surprises and gives the student a reason for the combination being taken.

Monthly EE checkpoint

Record the question, source base, current argument, next evidence gap and supervisor action. If the student cannot state the argument in one paragraph, more research alone may not solve the problem.

IA pre-mortem

Before beginning an IA, ask how it could fail: weak question, unavailable data, unsafe experiment, overbroad scope, poor source quality or impossible analysis. Remove predictable failure before investing weeks.

TOK example bank

Keep a small bank of real examples from news, science, history, mathematics, arts and personal learning. Record what knowledge issue each example illustrates. This prevents desperate example hunting when essay titles arrive.

CAS evidence habit

After a meaningful experience, record what happened, what choice the student made, what was difficult and what changed. Reflection becomes easier when evidence is captured close to the event rather than reconstructed months later.

Exam error cycle

After every timed paper, classify each lost mark: knowledge, interpretation, method, evidence, timing, presentation or careless execution. Reattempt representative errors before doing another full paper.

Language exposure cycle

For Language B or another acquisition course, rotate listening, reading, speaking and writing across the week. No mode should disappear for long periods simply because it is uncomfortable.

HL depth block

Protect uninterrupted time for the three subjects carrying the highest prerequisite and workload risk. Small daily tasks can maintain SL subjects, but difficult HL work often needs longer blocks for problem solving or sustained writing.

Application separation

University research and application writing deserve separate scheduled blocks. Do not let applications colonise every study session during Year 2. Academic performance remains part of the application.

Recovery day

At least one period each week should reduce cognitive load rather than add another formal target. CAS activity, exercise, family time and sleep are not wasted hours; the programme is designed around a student who remains functional for two years.

End-of-term audit

Compare predicted or current grades with university requirements, review whether subject choices still make sense, close unfinished CAS evidence, and set the next EE/TOK/IA milestones before the holiday becomes unstructured.

32. Fifteen checkpoints across the two-year Diploma

Week 2 of Year 1

The student should know the exact six subjects and whether the intended HL/SL configuration is provisional or final. They should have seen enough real lessons to notice one subject that feels easier than expected and one that feels harder. The correct response is not immediate panic; it is to compare the difficulty with prior preparation, school support and future prerequisites. If a change is being considered, act while the school’s change window is still open.

A useful test at this checkpoint is whether the student can name the next three high-value actions without opening ten different apps or asking a parent to reconstruct the calendar. Control is visible when priorities are clear, evidence is current and the learner knows which problem requires help. If the student is working hard but cannot explain the next move, improve the system before adding more hours.

End of the first month

A weekly study system should exist. The student should know where assignments, long deadlines and assessment dates are stored. If all planning lives in memory or scattered chats, the programme is already accumulating hidden load. The first month is the cheapest time to fix organisation because the number of active IAs and core deadlines is still low.

First major assessment

The score matters less than the failure pattern. Was the problem content, timing, command terms, essay structure, algebra, vocabulary or exam nerves? The student should create one repair task within a week. If the assessment disappears into a folder after the grade is received, the programme loses one of its earliest feedback signals.

First CAS review

The student should be able to explain why the chosen experiences belong to Creativity, Activity or Service and what learning is occurring. If CAS is already becoming a hunt for hours or photos, reset the purpose before the habit hardens. A meaningful programme is easier to sustain than manufactured evidence.

EE topic exploration

The student should have several possible research areas but should not become emotionally attached to a broad topic. Early exploration should test source availability, disciplinary fit, method and scope. The best outcome is often abandoning an exciting but impossible idea before weeks are spent defending it.

First TOK unit

The student should begin collecting examples from ordinary subjects rather than waiting for the assessed essay. A mathematics proof, historical source dispute, scientific model or artistic interpretation can become a compact knowledge case. The goal is to notice how knowledge works in practice.

Middle of Year 1

At least one long-form assessed component should be moving from vague topic to structured task. Students who have only homework and tests on their radar are missing the second layer of the programme. Parents do not need to manage the work, but they can ask whether major projects have questions, supervisors and next actions.

End of Year 1

The student should know approximate current performance in every subject, the likely university prerequisite pattern, the EE status and the major Year 2 risks. This is the moment for an honest audit. One amber subject is manageable; several unacknowledged red subjects plus a stalled EE is a systems problem.

Year 1 holiday

The holiday should not become either a total academic shutdown or a private summer school. Use it to close unfinished foundation work, strengthen one weak prerequisite subject, advance the EE where appropriate and restore sleep and physical activity. The aim is to enter Year 2 with fewer open loops than at the end of Year 1.

First six weeks of Year 2

The intellectual centre of the EE should be substantially mature, several IAs should be well advanced and university research should be moving from exploration to actual shortlist. If the student is still choosing an EE topic while application deadlines approach, workload has already shifted into recovery mode.

Before predicted grades are finalised

Students should understand the evidence the school uses for predictions and whether target universities require particular totals or HL grades. This is not the moment for bargaining. It is the moment to ask which performance evidence is missing and whether there is still time to produce it authentically.

First full mock cycle

Mocks should expose whether knowledge survives time pressure. The student needs a cross-subject error map: slow planning, weak retrieval, incomplete questions, poor calculator control, quotation recall, data interpretation or another repeatable issue. Improvement should target the recurring mechanism, not simply increase hours.

Application submission period

Academic work and applications must be separated enough that each receives attention. Students should not rewrite personal statements every evening while HL subjects decay. A fixed application block, clear document list and early reference management protect the curriculum from being consumed by admissions administration.

Final ten weeks

Most long-form assessed work should be closed or close to closed under the school’s calendar. Revision should increasingly resemble examination performance: timed retrieval, full questions, mark-scheme analysis and targeted reattempts. This is too late for beautiful new note systems that never become practice.

Final fortnight

The goal changes from learning everything to protecting reliable performance. Sleep, equipment, examination timetable, travel, permitted materials and pacing matter. Students should reduce chaotic late-night study and focus on high-value retrieval, representative problems and confidence in familiar routines.

33. When the IB Diploma may not be the best fit

The Diploma Programme is a strong and widely recognised route, but no programme should be treated as universally optimal. A student who has a very narrow academic focus, strongly dislikes maintaining breadth, struggles persistently with simultaneous long-term projects, or needs a subject that the school does not offer may be better served by another pathway. The correct comparison is with the real alternatives available at the actual school and destination, not with an abstract stereotype of A-Levels, AP or another programme.

Families should also separate programme fit from school fit. A student may dislike the way one school timetables or supports IB while thriving in the same programme elsewhere. Conversely, an excellent school cannot change a university prerequisite that the chosen subject combination fails to meet. When the fit is uncertain, inspect subject availability, sample work, deadline architecture, university counselling and student support before deciding.

34. One-page family handoff checklist

Record the six subjects, exact course names and proposed HL/SL levels.
Record at least three plausible university pathways and their published subject prerequisites.
Name the three subjects that currently create the greatest academic risk.
Record the EE subject, working question and next evidence milestone.
Record the current TOK assessed component and school deadline.
Confirm that CAS experiences and the CAS project are active and authentically documented.
List every IA or major assessed task due in the next eight weeks.
Record the latest mock or assessment evidence for each subject.
Identify one study routine that is working and one that should be removed.
Protect sleep, physical activity and one recovery period in the weekly calendar.

This handoff is useful because it lets a parent, student, tutor or counsellor see the programme state without taking over the programme. The student should remain the operator. Adults can help diagnose, prioritise and connect the learner to the right support, but the final goal is independent capability across a demanding two-year system.

35. Frequently asked questions

How many HL subjects do IB students take?

Current IB guidance requires a minimum of three and a maximum of four HL subjects. Remaining subjects are taken at SL.

How many teaching hours are HL and SL?

The IB recommends 240 teaching hours for HL and 150 for SL.

How is the IB Diploma scored?

Six subjects are graded 1–7. TOK and the Extended Essay can contribute up to three additional points, producing a maximum of 45. CAS is required but does not add points.

Is 24 points automatically a pass?

No. Twenty-four is the minimum total, but other minimum performance conditions and completion of the core also apply.

How long is the Extended Essay?

The Extended Essay culminates in a 4,000-word research paper under current IB guidance.

How long is the TOK essay?

Current IB guidance states that TOK is assessed through an exhibition and a 1,600-word essay.

Does CAS count toward the 45 points?

No. CAS does not contribute points, but completion is required for the diploma.

Can a student take four HL subjects?

Yes, the IB permits a maximum of four, subject to school offering and student programme design. Whether it is sensible depends on purpose and workload.

Is a 7 at SL the same as a 7 at HL?

Both are top grades on the same 1–7 scale, but HL covers greater scope and depth. Universities may therefore require an HL result for a prerequisite.

Can students take IB courses without the full diploma?

Yes. Students may take individual DP courses where their school permits, receiving course results rather than the full diploma award.

Does every university accept the same IB subjects?

No. Universities set their own prerequisites, total-score expectations and subject-level requirements.

Should a student choose an EE topic for university applications?

The best EE topic is one the student can investigate well within the discipline and evidence available. Admissions value can be a secondary benefit, not the main design criterion.

IB Diploma vocabulary worth reading precisely

Diploma candidate

A student entered for the complete Diploma Programme, including six subjects and the three core components. This is different from a student taking one or more individual DP courses. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Higher Level (HL)

A DP course studied in greater scope and depth with 240 recommended teaching hours. HL is often the level universities use for subject prerequisites. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Standard Level (SL)

A DP course with 150 recommended teaching hours. SL contributes equally to the 1–7 subject scale but covers less scope than HL. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Internal Assessment (IA)

A formal subject assessment completed in school under IB rules. Internal does not mean casual; marks are subject to IB standardisation/moderation processes as applicable. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

External Assessment

Assessment marked externally by IB examiners. Final written examinations are the most visible example, but some extended work can also be externally assessed. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Theory of Knowledge (TOK)

A core course about the nature and justification of knowledge, currently assessed through an exhibition and a 1,600-word essay. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Extended Essay (EE)

A required independent research project culminating in a 4,000-word paper. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Creativity, Activity, Service (CAS)

A required experiential-learning core component. It is not point-scored but must be completed. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Predicted grade

A school forecast of a student’s likely final subject result, often used during university applications before final results are available. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

DP course results

Results for individual DP components where the full diploma is not awarded or not attempted. These are not administratively identical to the full IB Diploma. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Core points

Up to three additional points generated by the combination of TOK and EE performance under the current matrix. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Bilingual diploma

A form of the diploma awarded when specified language-related conditions are met under IB rules. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Subject group

One of the broad academic domains structuring the DP curriculum. Subject-group rules preserve breadth across the diploma. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Interdisciplinary subject

A subject that can satisfy requirements across more than one group under current IB curriculum rules. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Grade descriptor

A statement describing the quality of performance associated with grades. HL and SL use the same grade descriptors, applied across different scope. Students should use the term in its IB meaning when reading school and university documents; casual everyday use can create avoidable confusion.

Official reference routes

Connect the IB Diploma with a school pathway

To consider the setting around the curriculum, explore the IB Diploma and specialist school guides. ACS(I), SJI, SOTA and Singapore Sports School have different admission and school-life contexts. SOTA’s IBCP and Sports School’s partner polytechnic diplomas are separate programmes; an IB Diploma curriculum comparison does not establish admission eligibility.

eduKate SG

IB Diploma Programme Explained | Subjects, HL and SL, TOK, Extended Essay, CAS, Assessment and the 45-Point Score