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Chemistry tuition for Assumption English School students
Live online Chemistry tuition for Assumption English School students in secondary 3–4. Bring recent schoolwork and teacher feedback so our tutors can see where your child needs help and plan the lessons.
Secondary 3–4
Courses and years
Pure Chemistry
Years 3–4
Combined Science (Chemistry)
Years 3–4
Bring recent schoolwork and the current topic list so we can choose a suitable class.
Study guide · 01
Particles, bonding and structure: explain properties precisely
Pure Chemistry questions can ask students to connect a structure with an observable property. Identify the type of particles, how they are arranged and the forces or bonds relevant to the property. A statement about melting needs a different explanation from one about electrical conductivity, even when both questions concern the same substance.
For a simple molecular substance, distinguish the forces between molecules from the covalent bonds within each molecule. For an ionic substance, distinguish the strength of the lattice interactions from the ability of ions to move. Those distinctions prevent a correct term from being used in an incorrect explanation.
Compare two substances using the same property. Explain how each structure affects it, then describe the difference. Try the explanation aloud without notes. If you are unsure which particles or forces matter, review those first.
Study guide · 02
Chemical calculations: make each step follow the equation
Plan the calculation: convert the given quantity to moles, use the balanced equation’s mole ratio and convert to the quantity asked for. Label each substance so you can check you are comparing the right pair.
Check the conditions in the question. A gas-volume calculation needs the stated conditions or molar volume. A solution calculation needs consistent volume units. If the question supplies information about excess or limiting quantities, use it before deciding how much product can form. Select the method from the evidence given.
The task
5.0 g of calcium carbonate reacts completely with excess hydrochloric acid. Given Mr(CaCO₃) = 100 and a gas molar volume of 24 dm³/mol at the stated conditions, calculate the carbon dioxide volume. Equation: CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂.
Worked response
Amount of CaCO₃ = 5.0 ÷ 100 = 0.050 mol. The CaCO₃:CO₂ mole ratio is 1:1, so 0.050 mol of CO₂ forms. Volume = 0.050 × 24 = 1.2 dm³.
Convert the calcium carbonate mass to moles, then use the 1:1 ratio to find the carbon dioxide amount. The acid is in excess, so the calcium carbonate determines how much gas forms. Finally convert the gas amount to volume.
Study guide · 03
Connect reactions across acids, redox, energetics and rates
Reaction topics become more useful when the student can explain the same change in several ways. An acid reaction can be represented by an equation, identified through observations and used in a calculation. A redox question can ask how oxidation states or electron transfer establish what was oxidised and reduced. Keep the definition connected to the species in the question.
For energetics, track where energy is transferred and distinguish bond breaking from bond formation. For rate questions, identify the changed condition and explain its effect on relevant collisions. If a graph is supplied, distinguish a faster reaction from a larger final amount of product; they describe different features of the results.
The Periodic Table, organic chemistry and air-quality topics also need explanation and application. Use the official outcomes to choose appropriate examples. A named topic is a starting point for revision; the verbs in its outcomes indicate whether the student should recall, explain, calculate or interpret information.
Study guide · 04
Practical Chemistry: observations, data and evaluation
Practical preparation includes choosing a method, making careful observations, processing results and evaluating the conclusion. For qualitative analysis, keep the test, observation and inference as separate steps. A colour change or precipitate is an observation; the identification of a substance is the conclusion supported by it.
When evaluating an experiment, identify the actual source of uncertainty and explain how the proposed change addresses it. Repeating measurements helps examine consistency, but it does not automatically remove a systematic problem in the method. A useful improvement needs a specific reason linked to the apparatus, measurement or procedure.
We use apparatus diagrams, results and experiment questions to practise planning and data interpretation online. Bring practical feedback as well as theory papers. Hands-on apparatus work takes place through the school’s laboratory programme.
Study guide · 05
A revision sequence for Pure Chemistry in Sec 3–4
Review particles, structure, formulae and equations, then practise the calculations and reactions that use them. Use the twelve-topic syllabus to check coverage and try questions without notes to see what still needs work.
Within a topic, alternate explanation questions with calculations and data interpretation where the outcomes require them. Later, mix topics so that the student must choose the relevant idea. Review multiple-choice distractors by explaining why each alternative fails; for structured questions, check that each part of the task has been answered.
Before an assessment, practise timed sections and full papers. Note where you lose time and check the working remains clear. Tutors use those mistakes to plan lessons, followed by platform practice and spaced review. Share the subject code and examination year when arranging a trial.
Study guide · 01
Structured answers: separate an observation from an explanation
Check what the question asks for. An observation describes what is seen or measured. An explanation gives the chemical reason. A conclusion says what the results show. Answer that part directly.
Use precise language. “A gas is produced” identifies an observable change but does not name the gas. Naming a gas requires appropriate evidence or other information in the question. Where an equation is requested, confirm the substances and balance it before using its coefficients in later working.
The task
In a written experiment scenario, a gas is bubbled through limewater, which turns milky. State the observation and the conclusion supported by the test.
Worked response
Observation: The limewater turns milky. Conclusion: The gas contains carbon dioxide.
“Turns milky” is the observation. Carbon dioxide is the conclusion from that test. Keep the distinction when answering other qualitative-analysis questions.
Study guide · 02
Calculations and data questions: show a method that can be checked
Label the substance and quantity on every calculation line. Read any equation or data given before choosing a relationship. Convert units where required and show how the values connect to the unknown. Clear working makes it possible to identify whether an error began with chemistry, unit conversion or arithmetic.
For a graph or table, read the labels and units before interpreting the pattern. Describe a trend using the quantities involved, then use the relevant concept to explain it. A larger final value and a steeper initial gradient can mean different things. Give numerical evidence when the question asks for support from the results.
After checking a calculation, explain why you used those values. This helps you choose the information when another question gives it in a different order.
Your class
Lessons and practice, every week
Class registration for the 2027 school year is open.
Trial
$30 subsidised trial rate
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Class format
Live online
Weekly duration
1.5 hours
Levels
Secondary 3–4
Between lessons
Subject practice on the DeepThink platform
Practice is included as part of the classes.
Registration
2027 school year
Open now. Request a trial class and we will message you to confirm the level and schedule.
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Class registration for the 2027 school year is open. Bring recent schoolwork to help us plan a useful first lesson.
About Assumption English School
PSLE cut-off point for Assumption English School
MOE publishes the PSLE score of the first and the last student posted into each school at each posting group. Below are Assumption English School's figures for the 2026 Secondary 1 intake — the 2025 PSLE cohort. The last student's score is what is usually meant by the school's cut-off point.
| Posting group | PSLE score range |
|---|---|
| Posting Group 3 | AL 10–22 |
| Posting Group 2 | AL 22–25 |
| Posting Group 1 | AL 26–29 |
Cut-off points move by a few points from year to year, and not every student who met the cut-off was posted here — some are tie-broken out. Read these as a guide to where a school sits, not as a threshold to clear.
Actual 2026 Secondary 1 intake, from MOE School Finder — last verified on 12 August 2026. MOE School Finder ↗
About Assumption English School
Assumption English School (AES) is a co-educational government-aided Catholic secondary school in Bukit Panjang, Singapore. It is one of the seven institutions governed by St Gabriel's Foundation.
School Overview
Assumption English School (AES) is a government-aided, co-educational secondary school that was established in 1953 by the Montfort Brothers of St Gabriel. The school operates on a single-session model and serves students from varied backgrounds. Its educational approach is rooted in Catholic traditions and draws from the teachings of St Louis-Marie Grignion de Montfort, with a particular emphasis on self-discovery, character formation, and care for the marginalised.
AES is affiliated with Catholic Junior College, which provides students with a pathway for post-secondary education through the Joint Admissions Exercise. The school does not have a direct primary school affiliation. Two signature programmes define the AES experience: the Applied Learning Programme (ALP) in Languages, known as Speak English with grAce and Knowledge (SPEAK), which develops students' communication abilities through applied language arts; and the Learning for Life Programme (LLP) in Community Youth Leadership, delivered through the DINAN Leadership Programme. Both programmes aim to develop well-rounded students with practical skills and a sense of civic responsibility.
Admission Process
Students are admitted to AES through the annual Secondary 1 posting exercise, which allocates places based on PSLE Achievement Level (AL) scores and school preferences. For the 2025 intake, the indicative cut-off points for non-affiliated students were: Posting Group 3 at 22, Posting Group 2 at 25, and Posting Group 1 at 29. These figures represent the score of the last student offered a place in each group and may shift annually depending on demand.
AES also participates in the Direct School Admission (DSA) scheme, which allows Primary 6 students to secure a place based on demonstrated talent before PSLE results are released. The talent areas accepted for DSA include: Basketball (girls and boys), Floorball (boys), Football (boys), Judo (girls and boys), Softball (girls), Community Youth Leadership (girls and boys), and Debating and Public Speaking (girls and boys). Applications are submitted through the MOE DSA portal, which typically opens in the middle of the year.
The school operates under Full Subject-Based Banding (FSBB), which means students can take individual subjects at different levels from Secondary 1. AES does not offer the Integrated Programme; all students follow a pathway leading to the GCE O-Level examinations.
Curriculum and Academic Programme
AES follows the GCE O-Level curriculum. Core subjects include English Language, Elementary Mathematics, Additional Mathematics, the Sciences (Physics, Chemistry, Biology offered in various combinations), and Humanities (Social Studies paired with Geography, History, or Literature in English). Elective subjects available include Art, Music, Higher Chinese, Higher Malay, and Computer Applications. Students requiring Tamil language instruction attend sessions at external centres.
The SPEAK programme, which forms the school's ALP, integrates language arts with practical, real-world scenarios to build confidence in communication. Bilingual education options are available to strengthen students' cultural and linguistic connections. Under FSBB, students have the flexibility to study subjects at levels that match their individual ability, rather than being locked into a single academic stream.
AES students have performed well in areas aligned with the school's strengths. In 2024, students achieved top positions at the ACJC Orator's Trophy debating competition. The school's alumni have gone on to careers in education, public service, and the military — CFC Ng Peng Yu, Owen, a recent graduate, received the Army NSF award.
Facilities and Co-Curricular Activities
The AES campus includes smart classrooms equipped with interactive technology, science laboratories, computer labs, a library, a sports complex with facilities for track and field, and dedicated arts studios. The school has also implemented barrier-free access and spaces designed to support students with special educational needs.
Co-Curricular Activities (CCAs) are compulsory and form a significant part of student life at AES. The school offers more than 20 CCAs across several categories:
Sports: Basketball (girls and boys), Floorball (boys), Football (boys), Judo (girls and boys), Softball (girls).
Uniformed Groups: Girl Guides, NPCC (girls and boys), Red Cross Youth (girls and boys), NCC Sea (boys).
Performing Arts: Choir, Modern Dance, Concert Band, English Language Drama.
Clubs and Societies: Debating and Public Speaking, Community Youth Leadership, Robotics, Environmental Club.
Several of these CCAs — including Basketball, Judo, and Debating — are linked to DSA talent categories, giving students an additional pathway into the school.
Student Life and School Culture
School culture at AES is shaped by its Catholic heritage and the Montfortian values of service, empathy, and care for others. Class sizes are typically between 35 and 40 students, with a teacher-to-student ratio of approximately 1:25. Each student receives pastoral care through form teachers and dedicated support staff, including Special Educational Needs (SEN) officers and school counsellors.
The school runs structured programmes in areas such as anti-bullying education, mental wellness, and peer support. These are aligned with MOE's broader guidelines on student well-being. The DINAN Leadership Programme, which serves as the school's LLP, provides opportunities for students to take on leadership roles and engage in community service throughout their time at AES.
For students entering Secondary 1, the transition from primary school involves adjusting to a heavier academic workload and greater independence. Establishing consistent study routines, participating in a CCA early, and maintaining open communication with parents can help ease this adjustment period.
Frequently Asked Questions about Assumption English School
Is Assumption English School a good school?
AES is a government-aided Catholic secondary school with a strong emphasis on values education, character development, and leadership. It offers the SPEAK Applied Learning Programme and the DINAN Leadership Programme, alongside a broad range of CCAs. Whether the school is the right fit depends on the individual student's learning style and interests; visiting the school during open house events is a practical way to assess this.
Is Assumption English School a co-educational school?
Yes. AES admits both boys and girls and operates on a single-session timetable.
Does Singapore officially rank secondary schools?
The Ministry of Education does not publish official rankings of secondary schools in Singapore. This policy is intended to encourage a focus on holistic development rather than narrow academic competition. AES is recognised for its strengths in values education, leadership development, and communication skills.
What are the PSLE cut-off points for Assumption English School?
For the 2025 intake, the indicative cut-off points for non-affiliated students were: Posting Group 3 at 7 to 22, Posting Group 2 at 21 to 25, and Posting Group 1 at 26 to 29. These represent the range of the last students admitted and may change from year to year based on the Secondary 1 posting exercise.
What O-Level subjects are available at Assumption English School?
The school offers subjects including English Language, Elementary Mathematics, Additional Mathematics, Biology, Chemistry, Physics, Literature in English, Geography, History, Humanities (Social Studies in combination with various electives), Art, Music, Chinese, Malay, and Higher Chinese. Exact subject combinations may differ by cohort, so it is worth checking with the school for the most current information.
What CCAs does Assumption English School offer?
AES provides over 20 CCAs. Sports options include Basketball, Floorball, Football, Judo, and Softball. Uniformed groups include Girl Guides, NPCC, Red Cross Youth, and NCC Sea. Performing arts groups include Choir, Modern Dance, Concert Band, and English Language Drama. Clubs and societies include Community Youth Leadership, Debating and Public Speaking, and Robotics.
Is Assumption English School affiliated with any junior college or primary school?
AES is affiliated with Catholic Junior College, giving its graduates priority consideration during the Joint Admissions Exercise. The school does not have a feeder or affiliated primary school.
What is the history of Assumption English School?
The school was established in 1953 by the Montfort Brothers of St Gabriel. It is the only co-educational Catholic secondary school in western Singapore and has its origins in Boys' Town. Throughout its history, AES has maintained a focus on values-driven education and character formation rooted in Montfortian principles.
How do students apply to Assumption English School after PSLE?
The primary route is through the MOE Secondary 1 posting exercise, where students are placed based on their PSLE AL scores and the school preferences they submit. Students with specific talents may also apply through the DSA scheme before PSLE results are released. Parents can refer to the MOE SchoolFinder tool for cut-off point data and submit their preferences during the official posting window.
What character development programmes does AES offer?
The school's main character development vehicle is the DINAN Leadership Programme, which operates under the Learning for Life Programme (LLP) in Community Youth Leadership. Through this programme, students participate in leadership training and community service projects. CCAs, pastoral care, and values education sessions further support character growth across all year levels.
What is the Applied Learning Programme (ALP) at AES?
The ALP at AES is called Speak English with grAce and Knowledge, or SPEAK. It focuses on developing students' communication and language skills through applied, real-world learning experiences.
What is the Learning for Life Programme (LLP) at AES?
The LLP is the DINAN Leadership Programme, which sits under the Community Youth Leadership category. It is designed to develop students' leadership capabilities and sense of community responsibility through structured activities and service projects.
What are the contact details for Assumption English School?
The school can be reached by phone at 6572 9100 or by email at [email protected]. Further information is available on the school's official website.
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