If your child scores 21 or 22 at PSLE and earns Standard Science AL5 or better, your family has a meaningful choice between Posting Group 2 and Posting Group 3 when applying for Secondary 1 in Singapore. Under Full Subject-Based Banding, a PG2 pupil who meets the Science subject-grade criterion may be offered G3 Science, even while beginning other subjects at G2. A pupil entering through PG3 generally starts most subjects at G3. Parents should therefore compare the child’s ability to explain experiments, read scientific information and reason from evidence with their readiness in English, Mathematics and Mother Tongue, before deciding which route and six schools are most suitable.

For the 2026 PSLE cohort entering Secondary 1 in 2027, MOE SchoolFinder’s available PSLE score ranges describe the 2025 PSLE cohort admitted into Secondary 1 in 2026. They are a guide, not an advance guarantee of admission. Schools such as East Spring, Greenridge, Broadrick, Northbrooks, Serangoon Garden, Punggol Secondary and Kranji show why a school may have very different historical cut-offs for PG2 and PG3. The responsible choice is to select one eligible Posting Group, use the correct score range for every school, then consider the child’s scientific interests, classroom support, co-curricular activities and actual daily commute.

Quick summary for parents
• PSLE Score 21–22: eligible for a choice between Posting Group 2 and Posting Group 3.
• Standard PSLE Science AL5 or better: meets the usual subject-grade threshold for a PG2 pupil to be offered G3 Science, subject to school arrangements.
• PG2 generally begins most subjects at G2; PG3 generally begins most at G3.
• A stronger Science result does not independently raise the child’s overall Posting Group or guarantee a school place.
• Choose one Posting Group for all six school preferences; compare the correct 2025 PG2 or PG3 ranges.
• Look for schools whose actual Science teaching, applied-learning opportunities, student support, journey and CCAs fit the child.
• A previous cut-off equal to your child’s score is a historical boundary, never a promised seat.

The important distinction: a Posting Group is not a Science subject level

A Posting Group is used to facilitate admission to a secondary school and to guide the level of most subjects at the start. G1, G2 and G3 are General subject levels. A student can enter through PG2 and learn Science at G3 if offered an eligible subject-level option. This flexibility matters to families whose child is stronger in one subject than in the others.

The PSLE aggregate is the sum of four subject Achievement Levels, with a lower total indicating stronger overall performance. Two children scoring 22 can have different Science results. For instance, English AL6, Mathematics AL6, Science AL4 and Mother Tongue AL6 sum to 22; English AL5, Mathematics AL5, Science AL5 and Mother Tongue AL7 also sum to 22. Both qualify for the PG2/PG3 choice, but their readiness and interests may differ.

The current Full Subject-Based Banding criteria allow a child whose indicative initial level is G2 to offer English, Mathematics, Science or Mother Tongue at G3 if the corresponding PSLE Standard subject result was AL5 or better. Foundation Science A is not the same as Standard Science AL5; Foundation A is mapped to equivalent AL6 for posting purposes and does not independently meet that G3 threshold.

The policy creates an option, not a compulsory label. A Science AL4 student who experiences significant difficulty with English reading might prefer PG2 with G3 Science if that combination best fits the overall workload. Another child may be ready for PG3 across the timetable and choose it. The family’s task is to establish readiness rather than seek the highest-sounding arrangement.

PG2 with G3 Science compared with PG3: what changes?

Family question	PG2 with eligible G3 Science	PG3
Ordinary starting load	Most subjects usually G2	Most subjects usually G3
Science with Standard AL5 or better	May be offered at G3, under school process	Usually begins at G3
English and Mathematics	Usually G2 unless separately eligible for more demanding levels	Usually G3
Which school admission data applies?	Historical Posting Group 2 range	Historical Posting Group 3 range
Main educational benefit to consider	Stretch Science while stabilising other subjects	More demanding overall starting curriculum
Main risk to discuss	Mixed subject workloads and timetable adjustments	Whether the pupil can manage G3 demand across subjects

A parent should not conclude that choosing PG2 prevents a child from becoming strong in Science. The subject-specific G3 option exists precisely because performance differs across subjects. But the school must confirm the actual offer, arrangements, acceptance procedure and materials. Do not assume every child with a qualifying PSLE grade will already be enrolled in a specific class.

Conversely, PG3 may suit a student who regularly explains difficult ideas across English, Mathematics and Science and enjoys independent learning. The family should still check how schoolwork, projects and CCA fit into one week. Readiness is a question about sustained learning, not only a single successful examination.

Full Subject-Based Banding allows appropriate later adjustments, but they are subject to school-based assessment and holistic consideration of readiness. It is misleading to promise the child they can automatically switch into any desired level whenever they ask. It is equally misleading to tell a PG2 pupil that their initial group determines every future subject.

Historical schools: examples for a score of 21 or 22

The following are 2025 PSLE non-affiliated historical last-posted scores for children entering Secondary 1 in 2026. They help families see the difference between routes; they are not a recommended ranking or forecast for 2027. Confirm every school and programme on the current MOE SchoolFinder.

School	2025 PG3 cut-off	2025 PG2 cut-off	Practical school-fit check
Broadrick Secondary School	22	25	Dakota area; laboratory learning and school transport
East Spring Secondary School	22	25	Tampines; Science approach and CCA programme
Greenridge Secondary School	22	25	Bukit Panjang; design-based learning and journey
Northbrooks Secondary School	22	25	Yishun; learning support and student life
Serangoon Garden Secondary School	22	25	Serangoon; learning culture and timetable
Sembawang Secondary School	22	25	Sembawang; activities and daily route
Punggol Secondary School	19	24	Punggol; distinct PG2 and PG3 outcomes
Kranji Secondary School	14	24	Choa Chu Kang; applied learning and leadership
Dunman Secondary School	14	23	Tampines; distinguish from Dunman High School

For a score-22 student choosing PG3, a school whose previous PG3 cut-off was 22 is at the old boundary. A past PG3 cut-off of 19 or 14 is numerically beyond that student’s historical position, even though the family may like the school. If the student chooses PG2, a past PG2 cut-off of 24 or 25 gives a two- or three-point numerical margin, but the ordinary academic starting load changes.

For score 21, the arithmetic is different: a PG3 past endpoint of 22 gives a one-point margin, while a cut-off of 22 is the old boundary for a score-22 child. A previous PG2 endpoint of 25 is four points higher than score 21. None of these differences is a personal admission probability. Vacancies, cohort preferences and ties can change the outcome.

A family must not use the PG2 number when submitting a PG3 application simply because the PG2 figure looks more favourable. Where a pupil can choose two Posting Groups, the selected group governs all six ordinary S1 school preferences. This is an early decision that changes the school comparison table.

The table spans several regions. It does not suggest a child in Punggol should travel to Sembawang or Bukit Panjang for no educational reason. Shortlist schools that the child can actually attend. A longer trip may be worth it for a distinctive programme that matters to the pupil, but convenience, sleep, friendships and after-school routines are real educational factors.

How to understand your child’s Science strength correctly

An AL5 or better is a subject-grade indicator, not a complete description of the child’s scientific thinking. Some pupils are particularly good at explaining observations; others remember factual material but struggle with experiment questions. Some are motivated by biology and living things, while others like forces, circuits or building models. Ask teachers to identify strengths from actual schoolwork.

A useful Science explanation usually involves a claim, evidence and reasoning. The child should know what was observed, which information supports the claim, and why that information points to the conclusion. Secondary 1 Science increasingly asks students to connect evidence to ideas rather than repeat memorised sentences.

Suppose an experiment compares how quickly two different substances dissolve. A pupil may describe which sample disappeared first. A stronger explanation controls the conditions, notices possible sources of error, compares measured results and explains what can or cannot be concluded. Parents do not need expensive equipment to test whether the child understands this distinction; careful questions about everyday observations are enough.

A child who enjoys hands-on experiments but finds English comprehension difficult may still need additional support to read laboratory instructions and write explanations at G3. Science readiness includes literacy and safety as well as scientific curiosity. Ask whether the school teaches these explicitly and gives feedback on the reasoning behind an answer.

Five Science skills to check before accepting a G3 offer

• Observation: Can the child describe what happened without adding an unsupported explanation?
• Variables: Can they identify what should change, what should be measured and what must stay the same?
• Evidence: Can they use a table, graph or recorded observation to support a conclusion?
• Scientific vocabulary: Can they explain terms precisely instead of using a memorised phrase without understanding?
• Communication and safety: Can they follow a practical instruction, record results clearly and ask for help when uncertain?

Parents can use ordinary situations to observe these abilities. When ice melts, what changes? How could you compare how quickly it melts in two places? What must be kept similar for the comparison to be fair? Ask the child to propose an investigation and identify evidence; avoid presenting your own method as the only possible answer from the start.

Do not perform hazardous experiments at home. The goal is to practise questions, reasoning and observation, not to recreate a school laboratory. A visit to a park, using a simple measuring instrument or reviewing a school experiment report can provide useful material.

If the pupil can explain everyday examples accurately but becomes overwhelmed by textbook questions, investigate whether the obstacle is unfamiliar vocabulary or a gap in the underlying concept. A well-chosen subject level should provide opportunities to close those gaps while extending real understanding.

The PG2 pathway: G3 Science without forcing every subject to G3

A child with Science AL4 and less secure English or Mathematics may find it helpful to learn Science at G3 while building foundations at G2 in the other subjects. The school will need to confirm the offer and how the pupil’s class timetable works. Parents should not decide solely from the attractive idea of a personalised curriculum.

Ask whether the student will be learning Science alongside peers from different form classes or Posting Groups and what happens when the pupil has trouble with technical language. Does the school offer bridging support? How are assessment questions marked and explained? Can the child consult a teacher if the workload becomes difficult?

The family’s goal is not to maximise the number of G3 subjects. It is to choose the combination most likely to produce sustained learning. An additional demanding subject should be supported by time for reading, homework, rest and CCA. A student who is confident in Science but exhausted every evening may need a better routine.

Some schools send subject-level offer notices through Parents Gateway, and the acceptance deadline may be short after posting. Do not rely on another school’s 2025 or 2026 deadline. Wait for the actual receiving school’s current letter and follow the instructions precisely, especially before buying subject-specific books.

The PG3 pathway: when a wider academic challenge makes sense

For another child, Science is one of several secure subjects. They may have solid reading stamina, enjoy Mathematics reasoning and take responsibility for unfamiliar homework. In that case, PG3 could be a coherent choice. The family can research PG3 schools whose historical ranges are appropriate, then compare teaching culture, CCAs and how teachers help pupils who find the first term difficult.

A parent should not mistake a strong Primary 6 result for proof that Secondary 1 will be easy. Scientific explanations become more formal; Mathematics introduces algebra and signed numbers; English requires longer texts and clear arguments. Even capable students need help moving into these new ways of working.

Ask what happens when a pupil who previously excelled receives an unexpectedly low assessment mark. Is feedback specific? Does the school teach students how to revise misconceptions? Can a pupil approach teachers without embarrassment? A strong environment should make it possible to learn from mistakes rather than hide them.

PG3 and PG2 are pathways through which children enter a school, not moral or social ranks. The best route is one that respects the child’s readiness and offers meaningful opportunities for growth.

School example: East Spring versus Broadrick

East Spring Secondary in Tampines and Broadrick Secondary in the Dakota area both show the same historical PG3 endpoint of 22 and PG2 endpoint of 25 for the completed exercise. Those numbers do not make the schools interchangeable. They serve different locations and have their own curricula, activities and student communities.

A family in Tampines may find East Spring easier to reach. A family around Dakota may prefer Broadrick’s shorter journey. Ask each school what the lower-secondary Science experience includes: practical activities, teaching of experiment skills, reading graphs, applied learning and opportunities that do not require joining a competition team.

The child can help compare these answers. Ask which activity sounds interesting and which school feels comfortable for asking questions. If the pupil wants G3 Science after PG2 entry, confirm each school’s actual offer process independently.

A smaller historical cut-off does not prove better laboratory teaching. A school deserves consideration for what pupils genuinely learn there, the quality of support and the way the timetable fits family life.

School example: Greenridge and Kranji in the west

Greenridge Secondary in Bukit Panjang had a historical PG3 endpoint of 22 and PG2 endpoint of 25, while Kranji in Choa Chu Kang had PG3 14 and PG2 24. For score 21 or 22, these figures produce different PG3 historical positions, and the PG2 comparison is different again.

Kranji’s published Applied Learning Programme focuses on design innovation for sustainable living. That may attract a child who enjoys observing a practical problem, proposing a solution and testing it. Greenridge also has applied-learning work that parents can research directly with the school. However, a programme name alone does not show exactly what every Secondary 1 pupil does.

Visit the official school pages and ask how practical science, environmental themes and design fit within the common curriculum. Is an interesting project available to all students or only a selected enrichment group? What time does it take? How are pupils taught to collect and interpret evidence?

The family’s final decision should include a route from home and an understanding of subject levels, not only the previous cut-off. A school closer to home may give the pupil extra time to read, practise and sleep.

School example: northern and north-eastern choices

Northbrooks in Yishun and Sembawang Secondary had historical PG3 endpoints of 22 and PG2 endpoints of 25. Punggol Secondary had an older PG3 endpoint of 19 and PG2 endpoint of 24. The three schools illustrate why local research can be more useful than a single national ‘top schools’ list.

A Yishun family might compare Northbrooks with other schools that have a feasible journey. A Punggol family may be interested in a particular Punggol school because the child already knows the neighbourhood. Check the actual transport during morning reporting and after CCA, not merely the distance in kilometres.

When comparing Science teaching, ask how the school supports pupils who are stronger in practical questions than in written explanations, and whether there are opportunities to develop scientific curiosity through clubs and applied learning. The schools can explain actual offerings, availability and selection requirements.

Avoid claiming that a historic PG3 endpoint of 19 means the school cannot have good PG2 Science students. Different Posting Groups are not separate judgements of pupil worth, and subject-specific strengths can appear across all groups.

A worked family case: score 22, strong Science, less confident English

Imagine a fictional pupil receiving English AL7, Mathematics AL6, Science AL3 and Mother Tongue AL6. The total is 22. The child loves investigating plants, measuring changes and explaining scientific ideas verbally, but struggles with long English passages. The family initially believes that strong Science requires PG3 across every subject.

They ask the primary-school teacher about English reading stamina and whether Science written explanations are genuinely independent. The teacher says the child is curious and thoughtful in experiments but needs time to interpret unfamiliar language. The family investigates PG2 with eligible G3 Science and compares it with the broader PG3 timetable.

They look at schools in a manageable travel radius, noting that a previous PG3 cut-off of 22 places the child at a boundary, while a past PG2 cut-off of 25 creates a different historical margin. They do not borrow the PG2 number while filling in PG3 choices. They also check school activities and whether a suitable Science subject offer will be available.

This example does not establish that PG2 is always right for strong-Science pupils. It shows how the child’s full subject profile can change what a sensible academic beginning looks like.

Another worked case: score 21 with balanced subject strengths

Consider a second fictional child whose grades are English AL5, Mathematics AL5, Science AL5 and Mother Tongue AL6, totalling 21. The student is comfortable with reading, numerical reasoning and scientific explanations, though they may still need help with the faster secondary curriculum. The family may reasonably consider PG3 because the strengths appear relatively balanced.

Even here, the school list should not be selected only from reputation. The parents compare a nearby school with historical PG3 endpoint 22 against another with a similar number but a much longer commute. They visit available open houses and ask about Science learning, student wellbeing and CCA.

The child says they like building models and discussing experiments in small groups. The parents look for opportunities to explore those interests while ensuring the school teaches a sound general curriculum. Their decision reflects the child’s actual experience, not a desire to announce that the higher Posting Group was chosen.

Families with the same PSLE total can choose differently and still make responsible decisions. Each pupil has different interests, learning habits and practical circumstances.

How to build six choices with correct information

First confirm the official eligibility and select the Posting Group that matches the child’s overall readiness. Under the standard S1 Internet System, one selected group applies across all six school preferences. Once that decision is made, record the relevant historical school ranges for that group. Do not use a mixture of PG2 and PG3 numbers in a single probability-like spreadsheet.

Second, choose schools that are plausible and genuinely acceptable. Include preferences based on the child’s interests and a realistic route. A school that requires multiple daily transfers may be an excellent fit for one family and impossible for another. The parent must ask whether the additional travel creates meaningful educational value.

Third, mark each school as a historical reach, boundary or numerical margin based on the child’s exact score. At score 22 under PG3, a previous cut-off of 22 is the boundary and 21 is a reach. At score 22 under PG2, a previous cut-off of 25 provides three points of historical numerical room. These categories do not guarantee admission and are not fixed percentages.

Fourth, rank the six schools by true preference after establishing a balanced list. Among tied pupils competing for the last place, citizenship, choice order and computerised balloting can affect the result. Do not put an unwanted school above a preferred school simply because someone says that tactic is safe.

Finally, verify official application dates, the child’s eligibility and any current school admission conditions. Where a child has received a confirmed DSA-Sec place, separate MOE commitments may apply. School choice is an important family decision and should be based on the actual exercise, not an old screenshot.

Preparing for Secondary 1 Science during the school holiday

The best preparation need not involve covering an entire secondary textbook before January. Help your child practise the thinking that makes future Science more understandable: ask a clear question, observe carefully, propose an explanation and notice what evidence could challenge that explanation.

Read short science articles together and ask the child to identify the main claim and evidence. Use safe household observations, such as the time needed for a measured amount of water to cool under different conditions, rather than any hazardous chemical experiment. Focus on clear comparisons, honest measurement and noting sources of uncertainty.

Practise graph reading. Ask what the axis labels mean, what changed over time and whether the graph actually supports the statement written next to it. This builds a useful bridge between Mathematics and Science without requiring premature mastery of advanced formulae.

Keep daily life balanced with reading, physical activity and rest. A student entering a new school needs the energy to make friends and develop routines as well as learn Science. Strong interests are easier to sustain when the school week is manageable.

Questions worth taking to an open house

• Does the school have a PG2 route and how are eligible G3 Science offers confirmed?
• How is lower-secondary Science taught through experiments, observation and written evidence?
• Are practical or applied-learning activities open to all pupils or only selected groups?
• How does the school support a child who understands experiments but struggles to explain them in English?
• What curriculum resources or bridging support are available for G3 Science entrants from PG2?
• What happens when the child wants to review a demanding subject-level decision later?
• How are science-related CCAs selected and how much time do they require?
• What is the realistic morning and after-CCA transport journey from home?
• How does the school communicate with families when the child finds the new timetable difficult?

Frequently asked questions

Can a score-22 child with Standard Science AL5 choose PG2 and take G3 Science?

The usual Full SBB subject-grade criteria permit a G3 Science offer to an eligible PG2 pupil with Standard Science AL5 or better. The receiving school must confirm the actual offer and arrangements.

Does Foundation Science A also satisfy the G3 Science criterion?

Not on that basis. Foundation A contributes the equivalent AL6 to the PSLE score; the PG2-to-G3 criterion is Standard subject AL5 or better.

Does a stronger Science grade automatically mean PG3 is best?

No. Compare all four subjects, the child’s learning habits, school options and wellbeing. PG2 with G3 Science may suit an uneven profile; PG3 may suit a pupil ready for broader G3 demand.

Can we use a school’s PG2 cut-off if we apply through PG3?

No. The chosen Posting Group determines which historical admission column is relevant. The ordinary six-choice list uses one selected Posting Group throughout.

Does a 2025 cut-off of 22 guarantee a 2027 school place?

No. It is the previous cohort’s last-posted score. Demand, vacancies and tie-breakers determine the later outcome.

Is a school with a lower cut-off always better at Science?

No. Historical cut-offs do not measure Science teaching quality. Investigate the school’s curriculum, laboratory learning, teacher support and pupil interests.

Final parent checklist

• We checked the exact PSLE total and Standard Science AL grade.
• We compared PG2 with eligible G3 Science against PG3 across the general timetable.
• We chose one Posting Group and used only its historical score ranges for the six school preferences.
• We assessed Science reasoning, English comprehension, Mathematics readiness and practical workload.
• We investigated schools the child can reach and genuinely wants to attend.
• We have a balanced preference list and did not treat a historic score boundary as guaranteed.
• We will read the receiving school’s actual subject-level offer and the current MOE application instructions.

Official references and related school guides

MOE Secondary 1 Posting; MOE SchoolFinder; Queenstown Secondary School 2026 Handbook — Full SBB eligibility table; Riverside Secondary: more demanding subject offers; General parent guide to PSLE 21–22; Companion guide: score 21 and strong Mathematics.

Evidence note, 1 November 2026: The listed school cut-offs are historical 2025 PSLE outcomes for Secondary 1 entry in 2026, not fixed or predicted cut-offs for the 2027 intake. Current MOE rules, the pupil’s result slip and the receiving school’s actual subject offer take precedence.