Pure Chemistry at O-Level rewards structured chains of reasoning — not memorised facts. Mole calculations, organic mechanisms, answer-structure all drilled.
Your child works out 4.0g of NaOH. Calculates Mr as 40. Then divides 40 by 4 instead of 4 by 40. Moles = 10 instead of 0.1. Every downstream answer is now wrong by a factor of 100. The entire 6-mark stoichiometry question is gone — and they had the chemistry right.
"I keep flipping the formula. Mass over Mr or Mr over mass — I never remember which way."
We drill the mole-ratio checkpoint by name: every mole calculation gets a written unit-check (mol = g ÷ g/mol) before the next line. Five exercises a week, marked for unit logic not just answer. By Sec 4 Term 1 the flip-error is gone — and the easy stoichiometry marks come home.
Yes — that's my child →Every topic in the Sec 3 / 4 (G3) Pure Chemistry syllabus, taught in the order that builds skill. We refresh the materials every year against the latest SEAB exam reports.
The methods we teach with — applied across the term, calibrated to where each student needs them most.
Most lost marks are habit, not knowledge. We track them, name them, and drill them out.
Question: "Calculate the volume of CO₂ produced at STP when 5 g of CaCO₃ decomposes completely." Most students immediately calculate moles of CaCO₃, then guess the next step. Our working format forces three rows: (1) moles of starting material, (2) ratio from balanced equation, (3) target quantity. So: moles of CaCO₃ = 5/100 = 0.05; CaCO₃ : CO₂ ratio is 1:1 from CaCO₃ → CaO + CO₂; therefore moles CO₂ = 0.05; volume at STP = 0.05 × 24 = 1.2 dm³. Three rows, every time, no matter how complex the question. The format does the thinking.
No surprises. The structure is the same week to week — students settle in fast.
"Genuinely the best teacher around! She really helped push my chemistry grades from just barely passing to an A! Her explanations are simple and clear and overall a very well rounded teacher."
Each term covers 8 weekly lessons. Missed lessons are credited into the next term — credit applies for public holidays, school holidays, official school activities, and absences with a medical certificate.
Both branches see Sec 3 / 4 students from across the north and west of Singapore. A snapshot of the schools currently in our classes.
G3 Pure Chemistry (Sec 3 & 4) runs at both branches — pick the slot and branch that suits you. Free trial at either centre. WhatsApp us to confirm availability.
Tell us a few things and we'll continue on WhatsApp to confirm a Pure Chemistry trial slot. Faster than email, never spammy.
