Practise CSEC Maths the way you’ll sit it.
Work original, exam-style questions on paper. Take a photo of your page. See where your working earns marks — and where it loses them — so you know what to improve before exam day.
Mark one question freeNo card required.
- STEP 1
Work it on paper
A question in the style of the paper, on your phone. You do it by hand.
- STEP 2
Take a photo of your page
One photo of your working. We read it and fill in your answer boxes — you check them, then hand in.
- STEP 3
See every mark
Each method mark your working earned, and why — and the exact line that lost one, in red pen. After 3 days, tap Revisit mistakes for new questions on the same skill, so you don’t lose that mark twice.
Daily exam practice, aimed at the topics worth the most marks for you.
Mark one question freeNo card required.
I sat these exams in Grenada. Ten CXC subjects, an island scholar. Then I taught CSEC Mathematics for two years — working past papers with students, question by question — before engineering degrees, a PhD in computer science and AI, and a career leading AI teams in the US.
Every step of that road started with CXC passes. What I saw in the classroom was students who knew the maths and still lost the marks, because nobody had shown them how the paper is actually marked.
So I built the practice I wish every student had: the same question-by-question work, with the working marked — patient, precise, available every single day.
- The whole programme: diagnostic, daily sessions, marked working
- One student, with access running to the sitting they are entered for
- Every re-mark request is reviewed by a person
Checkout asks for the student’s email address, which need not be yours: that is the address they sign up with, and how the payment reaches their account.
Not satisfied? Email us within 14 days of paying and we will refund you.
- Is it the whole paper?
- Not quite, and we say so: ExtraLesson practises about 95% of the marks in a CSEC Mathematics paper. Graphs you draw on paper count — take a photo of them and we mark the drawing, worth about 6 marks a paper that you earn no other way. Construction with ruler and compasses — roughly 4 marks — we do not cover at all, so that stays with past papers. We do not prepare private candidates for Paper 032.
- Does it work on a basic phone?
- Yes. Any smartphone with a camera. Low data by design — no video streaming.
- They’re re-sitting in January 2027 — is this for them?
- Especially for them. January 2027 candidates re-sit Papers 1 and 2 (project marks carry over), which is exactly what this trains. Whatever run-up is left, daily exam practice on the topics costing the most marks, with the working marked rather than the answer ticked.
- Are these CXC’s own questions?
- No — CXC’s papers are their copyright. Our questions are original and exam-style, written to the current public syllabus and marked to mark-scheme conventions, and reviewed by a teacher who taught CSEC Mathematics in the Caribbean (me).
- When do they see a grade estimate?
- A grade estimate once we’ve seen enough of their work — 35 marks in every module. Until then the notebook shows how far each module has got.
- How will I know it’s working?
- We do not send reports: they can open their own marked working whenever they want to, and you will hear how it is going from them, not from us.
- What if it doesn’t help?
- Email us within 14 days of paying and we refund you — no questions, no forms. Tell me when the marking is wrong and it gets fixed.