Quadratic
(x + 2)(x + 3) = 0
x = 2, x = 3
sign flipped wrong
Premium math coaching · Secondary & JC
Coaching that identifies the exact gaps holding your child back — and fixes them at the source.
Quadratic
(x + 2)(x + 3) = 0
x = 2, x = 3
sign flipped wrong
Differentiation
y = cos x
dy/dx = sin x
dropped the minus
Inequality
−2x > 6
x > −3
didn't flip the sign
Factorising
−(x − 3)
−x − 3
didn't distribute the sign
The pattern
If any of them do, this is what the coaching is built to fix — and the diagnostic will find where it starts.
Understands it in class, but can't reproduce the working alone at home.
Lost in class — the concepts never clicked, and each new topic makes it worse.
One topic — trigonometry, differentiation — quietly drags the whole grade down.
Stuck at a B or C for terms, despite the hours already going in.
How the coaching works
You've seen the pattern. This is the part you can't infer yet — how a habit, not a topic, actually gets fixed, week to week.
Once the diagnostic isolates the habit — like the negative-sign slip above — each lesson is built to interrupt it until the correct step becomes automatic across every topic it touches. As each habit closes, the plan moves to the next: week 2 isn't week 8.
Not “a nice teacher” — the same patterns from the top of the page, closed. A few students, shared with permission.
Students have come from
Billed at the end of the month. No package lock-in.

About Wee Han
I'm Wee Han, and I coach secondary, IP and JC math, one-to-one and in small groups. If your child understands things in class but freezes on their own, or keeps making the “same silly mistake,” that's usually not carelessness and never a sign they can't do math. More often it's a couple of specific misconceptions sitting underneath, quietly costing marks.
What I do is find where the reasoning actually breaks, work out why, and check the fix holds across the different ways an exam can ask the same thing. It's detailed work, and it's the part that tends to move a grade.
I only take on a limited number of students, and groups stay small, so every child still gets close attention.
Enquire
Places are limited and taken on fit. WhatsApp is fastest; the form works just as well — no commitment either way.
We'll reply within 24 hours on weekdays to arrange a short call and check whether the fit is right.