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Chemistry tuition for Deyi Secondary School students
Live online Chemistry tuition for Deyi Secondary 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
A dedicated trial session at a different timeslot is offered at a subsidised rate of $30. We’ll help you explore the available options.
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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Try a Chemistry class
Class registration for the 2027 school year is open. Bring recent schoolwork to help us plan a useful first lesson.
About Deyi Secondary School
PSLE cut-off point for Deyi Secondary School
MOE publishes the PSLE score of the first and the last student posted into each school at each posting group. Below are Deyi Secondary 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 9–16 |
| Posting Group 2 | AL 21–24 |
| Posting Group 1 | AL 25–30* |
* This posting group did not fill. MOE School Finder then reports the cut-off as AL 30 — the weakest score the school could have admitted — rather than the score of a student who was actually posted there.
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 Deyi Secondary School
Deyi Secondary School is a co-educational government secondary school located in Ang Mo Kio, Singapore. Founded in January 1980, having 1,200~ pupils. The school is remarked for its niche development in performing arts. An Aesthetics Development Programme (ADP) forms part of the niche development, which resulted in the Direct School Admission (DSA) status.
Founded: 1980
School Overview
Deyi Secondary School is a co-educational government secondary school situated in the Ang Mo Kio planning area. It was established in January 1980 to serve the growing need for secondary education in Singapore's northern region and moved to its present campus in 2002. The school enrols approximately 1,200 students from a wide range of backgrounds.
The school adopted the motto "Dedication & Integrity" in 1981, reflecting its emphasis on moral character and academic commitment. Deyi's educational approach treats every student as having untapped potential, with teachers providing individualised guidance grounded in values such as integrity, resilience, and empathy. The goal is to develop students who are both academically capable and socially responsible.
Two signature programmes distinguish the school. The Applied Learning Programme (ALP) in Languages centres on broadcast journalism, giving students hands-on experience in media production while developing bilingual communication skills. The Learning for Life Programme (LLP) in Music and Performing Arts builds confidence and civic-mindedness through sustained engagement with the arts. Both programmes align with MOE's emphasis on holistic education and offer students meaningful learning beyond the standard curriculum.
Admission Process
Entry to Deyi Secondary School at Secondary 1 is primarily through the PSLE posting exercise. Based on the 2024 PSLE results, the indicative cut-off points for non-affiliated students were: Posting Group 3 (11 to 16), Posting Group 2 (21 to 25), and Posting Group 1 (25 to 28). These figures represent the score of the last student admitted in that cycle and may shift from year to year.
The Direct School Admission (DSA) scheme provides an alternative pathway for students with demonstrated strengths in areas such as sports, performing arts, leadership, or academics. Up to 20% of the cohort may be admitted through DSA. Applications are submitted via the MOE DSA portal, typically opening around mid-year for entry the following January.
Deyi follows the O-Level track and implements Full Subject-Based Banding (FSBB), which allows students to take individual subjects at different levels from Secondary 1 based on their PSLE performance and strengths. Parents considering Deyi are encouraged to attend the school's open house sessions, usually held between May and June, for campus tours and conversations with staff.
Curriculum and Academic Programme
Under the Full Subject-Based Banding framework, Deyi offers a broad range of subjects at varying levels. Core subjects include English Language, Elementary Mathematics, Additional Mathematics, the Sciences (Biology, Chemistry, Physics), and Humanities (Geography, History, Social Studies). Students can also study Higher Chinese, Malay, or Tamil, along with electives such as Principles of Accounts, Design and Technology, Nutrition and Food Science, and Art.
The school has posted solid academic results. In the 2024 O-Level examinations, Pure Science subjects achieved a 100% pass rate, while Additional Mathematics and Elementary Mathematics recorded distinction rates of 58% and 56.5% respectively. Deyi has also received the Lotus Sustained Achievement Award (2017) for environmental education and the National Arts Education Award (2016).
Facilities and Co-Curricular Activities
Deyi's campus features classrooms fitted with interactive learning technology, science and computer laboratories, a library, and a sports complex with courts for badminton and basketball. Dedicated arts studios and a performing arts hall support the school's strong emphasis on the creative arts.
The school runs more than 20 Co-Curricular Activities (CCAs) across four categories:
Sports and Games: Badminton (Boys), Basketball, Football, Table Tennis, Volleyball, Track and Field, and Outdoor Adventure.
Uniformed Groups: National Cadet Corps (NCC Land), National Police Cadet Corps (NPCC), and St John Brigade.
Visual and Performing Arts: Choir, Marching Band, Modern Dance, English Drama, and Visual Arts.
Clubs and Societies: Media and Journalism, Robotics, Infocomm Technology, Environmental Science, and Art and Crafts.
CCA participation is an integral part of student development at Deyi, building teamwork, discipline, and leadership qualities. Students with particular CCA strengths may also use these experiences to support a DSA application to junior colleges or other post-secondary institutions.
Student Life and School Culture
School culture at Deyi is shaped by its founding values of dedication and integrity. The school maintains a structured daily routine with time allocated for both academic lessons and co-curricular engagement. Class sizes are typically around 40 students, and pastoral care is delivered through form teachers, a school counselling team, and structured programmes addressing peer relationships and well-being.
Deyi participates in MOE-aligned initiatives including Values in Action (VIA) community service projects and mental health awareness programmes. Orientation activities and buddy systems help Secondary 1 students settle into the school, while resilience-building workshops are woven into the broader character education framework.
The school also supports students preparing for the transition to post-secondary education through Education and Career Guidance (ECG) activities, helping them understand the pathways available after the O-Level examinations, including junior colleges, polytechnics, and the Institute of Technical Education.
Frequently Asked Questions about Deyi Secondary School
Is Deyi Secondary School a good school?
Deyi Secondary School is a government co-educational school recognised for its strengths in the performing arts and broadcast journalism. Its Applied Learning Programme and Learning for Life Programme provide students with distinctive learning experiences beyond the standard curriculum. The school has received national awards for environmental education and arts education, and its O-Level results reflect consistent academic performance across core subjects.
Is Deyi Secondary School a co-educational school?
Yes, Deyi Secondary School admits both boys and girls.
Does Singapore officially rank secondary schools?
The Ministry of Education does not publish official rankings for secondary schools in Singapore. Each school has different strengths and programmes. Deyi Secondary School is noted for its performing arts and broadcast journalism programmes.
What are the PSLE cut-off points for Deyi Secondary School?
Based on the 2024 PSLE results, the indicative cut-off points for non-affiliated students were: Posting Group 3 (11 to 16), Posting Group 2 (21 to 25), and Posting Group 1 (25 to 28). These scores represent the last student admitted in that intake cycle and may vary each year. The latest figures are available on the MOE SchoolFinder website.
What subjects does Deyi Secondary School offer?
The school offers English Language, Elementary and Additional Mathematics, Sciences (Biology, Chemistry, Physics), Humanities (Social Studies, Geography, History, Literature), Mother Tongue Languages (Chinese, Malay, Tamil), Principles of Accounts, Design and Technology, Nutrition and Food Science, Art, Drama, and Physical Education. Full Subject-Based Banding allows students to take subjects at different levels. Subject availability may change from year to year.
What CCAs are available at Deyi Secondary School?
Deyi offers more than 20 CCAs. Sports options include Basketball, Football, Table Tennis, Volleyball, Badminton, Track and Field, and Outdoor Adventure. Uniformed groups include NCC Land, NPCC, and St John Brigade. Performing arts groups include Choir, Marching Band, Modern Dance, English Drama, and Visual Arts. Clubs and societies cover Media and Journalism, Robotics, Infocomm Technology, Environmental Science, and Art and Crafts.
What is the Applied Learning Programme at Deyi Secondary School?
The Applied Learning Programme (ALP) focuses on broadcast journalism and languages. Students gain practical skills in media production while developing bilingual communication abilities through hands-on projects.
What is the Learning for Life Programme at Deyi Secondary School?
The Learning for Life Programme (LLP) centres on music and the performing arts. It aims to develop confident communicators and responsible citizens through sustained creative experiences across the school years.
What are the O-Level subjects available at Deyi Secondary School?
O-Level subjects include English Language, Elementary Mathematics, Additional Mathematics, Biology, Chemistry, Physics, Geography, History, Literature, Social Studies, Principles of Accounts, Design and Technology, Nutrition and Food Science, Art, and Mother Tongue Languages. Subject offerings may be updated from year to year.
Does Deyi Secondary School implement Full Subject-Based Banding?
Yes. Under Full Subject-Based Banding (FSBB), students at Deyi can take individual subjects at G1, G2, or G3 level based on their strengths. This allows for a more personalised academic path from Secondary 1 onwards.
What are the school fees at Deyi Secondary School?
For Singapore Citizens, government secondary school fees are typically S$5 per month, with additional miscellaneous fees. Permanent residents and international students pay higher rates. Edusave funds may be used by eligible Singapore Citizen students. Current fee schedules are listed on the MOE website.
How does Deyi Secondary School support the transition from primary to secondary school?
The school runs orientation programmes for incoming Secondary 1 students, pairs new students with senior buddies, and provides pastoral support through form teachers and the counselling team. Full Subject-Based Banding also helps ease the academic transition by letting students take subjects at levels suited to their abilities.
Does Deyi Secondary School offer an Integrated Programme?
No. Deyi Secondary School follows the standard O-Level curriculum and does not offer an Integrated Programme.
What values does Deyi Secondary School emphasise?
The school's motto is "Dedication & Integrity." Its character education programme, Learning for Life Programme in the arts, and Values in Action community projects all reinforce values such as integrity, resilience, empathy, and a sense of responsibility to the wider community.
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