Class size
Maximum 4 students
Students are grouped by learning pace, not just by level — if no existing session matches your child’s pace, we open a new one.
Chemistry tuition for CHIJ St. Joseph's Convent students
Live online Chemistry tuition for CHIJ St. Joseph's Convent 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.
Meet your tutor
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 CHIJ St. Joseph's Convent
PSLE cut-off point for CHIJ St. Joseph's Convent
MOE publishes the PSLE score of the first and the last student posted into each school at each posting group. Below are CHIJ St. Joseph's Convent'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 | Non-affiliated | Affiliated |
|---|---|---|
| Posting Group 3 | AL 8–14 | AL 11–20 |
| Posting Group 2 | AL 21–23 | AL 21–25 |
| Posting Group 1 | AL 25–28 | AL 25–28 |
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 CHIJ St. Joseph's Convent
Nestled in the vibrant heart of Sengkang, CHIJ St. Joseph’s Convent traces its roots back to 1938, when it began as a modest private school in a rented house at Flower Road, serving just 21 pupils under the guidance of the Sisters of the Infant Jesus (IJ).
Founded: 1938
Values: humility, simplicity, service
School Overview
CHIJ St. Joseph's Convent (CHIJ SJC) is a government-aided Catholic girls' secondary school situated in Sengkang. The school was established in 1938 as a small private institution on Flower Road, accommodating 21 pupils under the care of the Sisters of the Infant Jesus (IJ). It transitioned into a full secondary school in 1975 and moved to its present campus at 62 Sengkang East Way in 2000.
The school operates on a single-session basis and is guided by the motto "Simple in Virtue, Steadfast in Duty," which reflects its emphasis on moral integrity, resilience, and purposeful action grounded in IJ values of humility, simplicity, and service. CHIJ SJC is affiliated with CHIJ Our Lady of the Nativity, CHIJ Our Lady of Good Counsel, and Catholic Junior College, providing connected pathways for students at both the secondary entry and post-secondary stages.
Two signature programmes define the school's distinctive approach. The Applied Learning Programme (ALP) centres on Languages and the Art of Communication, developing students' skills through theatre and debates. The Learning for Life Programme (LLP), titled "Bringing L.I.G.H.T. Into The Community," focuses on Community Youth Leadership and cultivates empathy, integrity, and active citizenship.
Admission Process
Entry to CHIJ SJC at Secondary 1 is managed through the PSLE posting exercise and the Direct School Admission (DSA) scheme.
For the 2025 intake (based on 2024 PSLE results), the indicative cut-off points were: affiliated students — Posting Group 3: 9 to 20, Posting Group 2: 21 to 25, Posting Group 1: 25 to 29; non-affiliated students — Posting Group 3: 10 to 13, Posting Group 2: 21 to 23, Posting Group 1: 25 to 26. These figures represent the score of the last student admitted in the previous cycle and may shift from year to year.
The DSA scheme is open to students with strengths in areas such as sports (netball, volleyball), performing arts, and leadership. Applications typically open in May and outcomes are released by early September. Affiliated primary school pupils receive priority consideration, followed by applicants through the S1 Joint Admissions Exercise.
The school offers the Express and Normal (Academic) streams. It does not run an Integrated Programme (IP), so all students follow the pathway leading to the GCE O-Level examinations. Full Subject-Based Banding (SBB) is implemented, allowing students to take individual subjects at different levels from Secondary 2 onward based on their strengths.
Curriculum and Academic Programme
CHIJ SJC follows the MOE curriculum and offers a range of subjects at the O-Level, including English Language, Mathematics, Additional Mathematics, Sciences (Chemistry, Biology, Physics, combined Science options), Humanities (Social Studies with Geography or History), Literature in English, Art, Geography, and Mother Tongue Languages (Chinese, Malay, Tamil, and Higher Chinese).
The school has maintained strong academic results, with O-Level pass rates consistently above 95 percent in core subjects such as Mathematics and the Sciences. It received the Lee Hsien Loong Award for Innovation in the Normal Course from 2015 to 2021 and the Best Practice Award for Staff Well-being from 2014 to 2020.
Full Subject-Based Banding enables students to customise their subject combinations from Secondary 2, allowing them to study particular subjects at a higher or lower level depending on their aptitude. The ALP in Languages integrates communication skills across the curriculum through theatre and debate activities, while the LLP in Community Youth Leadership provides structured opportunities for service learning and character development.
Facilities and Co-Curricular Activities
The campus, which was purpose-built when the school relocated in 2000, includes smart classrooms equipped with interactive technology, science and computer laboratories, a well-stocked library, a multipurpose sports hall, and arts studios.
Co-Curricular Activities (CCAs) are organised across several categories:
Sports and Games: Badminton, Netball, Shooting, Table Tennis, and Volleyball.
Performing Arts: Choir, Concert Band, Guitar Ensemble, Handbell Ensemble, Indian Dance, and Modern Dance.
Clubs and Societies: Debate and Theatre Club (linked to the ALP), Robotics, and Leadership groups.
Uniformed Groups: Girl Guides, National Police Cadet Corps, and St John Brigade.
Community Service: LLP-related youth leadership projects that connect to the school's values education framework.
CCA participation contributes to holistic development and can also support DSA applications, particularly in areas such as netball and the performing arts.
Student Life and School Culture
School culture at CHIJ SJC is shaped by Catholic values while remaining inclusive of students from all faiths and backgrounds. Daily routines incorporate structured academic time alongside moments for reflection, including morning assemblies that encourage gratitude and mindfulness.
Class sizes are typically between 35 and 40 students, and the school maintains a strong pastoral care system that includes dedicated counselling services, anti-bullying workshops, and social-emotional well-being programmes. Teachers take on mentoring roles, working closely with students to build resilience and develop leadership qualities.
For Secondary 1 students adjusting to the transition from primary school, the school provides orientation activities and buddy programmes to ease the shift. Parents are encouraged to help their children establish consistent study routines early on to manage the increased academic workload.
The school also has Special Educational Needs (SEN) officers who provide support in line with MOE's inclusive education policies. Parents seeking information about specific accommodations can contact the school directly.
Frequently Asked Questions about CHIJ St. Joseph's Convent
What are the PSLE cut-off points for CHIJ St. Joseph's Convent?
For the 2025 intake, the indicative cut-off points were: affiliated students — Posting Group 3: 9 to 20, Posting Group 2: 21 to 25, Posting Group 1: 25 to 29; non-affiliated students — Posting Group 3: 10 to 13, Posting Group 2: 21 to 23, Posting Group 1: 25 to 26. These represent the score of the last student admitted and may change each year.
Is CHIJ St. Joseph's Convent a co-educational school?
No. CHIJ St. Joseph's Convent is a girls-only government-aided secondary school that operates on a single-session basis.
Does Singapore officially rank secondary schools?
The Ministry of Education does not publish official rankings for secondary schools. Parents are encouraged to evaluate schools based on factors such as curriculum offerings, CCAs, school culture, and proximity to home rather than relying on informal league tables.
Which primary schools are affiliated with CHIJ St. Joseph's Convent?
The school is affiliated with CHIJ Our Lady of the Nativity and CHIJ Our Lady of Good Counsel. Students from these primary schools may receive priority admission and benefit from more favourable cut-off points during the Secondary 1 posting exercise. CHIJ SJC is also affiliated with Catholic Junior College for post-secondary pathways.
What O-Level subjects are available at CHIJ St. Joseph's Convent?
Subjects include English Language, Mathematics, Additional Mathematics, Sciences (Chemistry, Biology, Physics, combined Science options), Humanities (Social Studies with Geography or History), Literature in English, Art, Geography, Chinese, Malay, Tamil, Higher Chinese, and Physical Education. Specific offerings may vary by cohort and stream.
What CCAs does CHIJ St. Joseph's Convent offer?
The school offers sports such as Netball, Badminton, Table Tennis, Volleyball, and Shooting; uniformed groups including Girl Guides, National Police Cadet Corps, and St John Brigade; performing arts groups such as Choir, Concert Band, Modern Dance, and Handbell Ensemble; and clubs including Debate and Theatre, Leadership, and Community Service.
What is the Applied Learning Programme at CHIJ St. Joseph's Convent?
The ALP focuses on Languages and the Art of Communication through Theatre and Debates. It is designed to develop students' confidence and communication abilities through practical application of language arts within the curriculum.
What is the Learning for Life Programme at CHIJ St. Joseph's Convent?
The LLP is titled Community Youth Leadership — Bringing L.I.G.H.T. Into The Community. It develops leadership skills and a sense of community responsibility through structured projects and activities that emphasise values such as integrity and gratitude.
What are the school operating hours?
The school is open Monday to Friday, from 6:00 am to 6:45 pm during term time, and 6:00 am to 6:00 pm during school holidays. Protected time runs from 7:00 am to 5:00 pm. The school is closed on public holidays.
Does CHIJ St. Joseph's Convent have SEN support?
Yes. The school has Special Educational Needs officers available to support students, in line with MOE's inclusive education policies. Parents can contact the school for details on specific accommodations.
What post-secondary options are available after CHIJ St. Joseph's Convent?
The school is affiliated with Catholic Junior College, which provides a direct pathway for eligible students. Graduates generally proceed to junior colleges, polytechnics, or ITE based on their O-Level results.
How can I contact CHIJ St. Joseph's Convent?
The school is located at 62 Sengkang East Way, Singapore 548595. You can reach them by phone at +65 6489 7580 or by email at [email protected].
Ready to start?
Try a trial class and see how DeepThink works
Experience our teaching approach and find a class that suits your child’s learning needs.
Class registration for the 2027 school year is open.