Original practice for the four IB Mathematics courses, analysis and approaches and applications and interpretation, at Standard and Higher Level. Every question is mapped to the official subject guide[1], calibrated on recent official papers[2] and marked in IB conventions[3].
the method
Five steps, notion by notion. The first three are documents you download from your course tab; the last two are played on the site.
The course of each sub-notion, with the notation the markscheme expects.
course tab · PDFAn exam-style question solved line by line, with the mark each line earns.
course tab · PDFA similar question, on paper, then more practice.
course tab · PDFPredict the marks of a question, write each line, and check it.
Mark it · on the siteThe Paper 2 moves, key by key, on the NumWorks and the TI-Nspire[4].
GDC training · on the sitewhat a marked example looks like
3.[Maximum mark: 6]
Let $f(x)=x\,\mathrm{e}^{-x}$, for $x\ge 0$.
Show that gives the answer away: the marks are for the working, and the markscheme writes AG, answer given.
Hence asks you to use what you have just shown. The parts of a question lean on each other, as in the real papers, and that is where the name comes from.
Three marks, three steps: a method mark, then two accuracy marks.
Why it is original. Each question starts from a syllabus point and an invented context, never from a past paper, a textbook or another website, and its origin is recorded.
click a card
Four ways in. Each one earns XP, kept on this device.
Notions, sub-notions, examples and exercises. Turn the card.
Predict every mark of a question, write each line, check.
paper 2The Paper 2 calculator moves, key by key, on a NumWorks you play in the page.
freeFree questions in every course, no account.
one pack per course
Packs are bought per course, AA SL, AA HL, AI SL or AI HL, and open the same levels in its exam papers, in Mark it and in GDC training.
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Bought by a parent, with an account for the student. Prices announced at launch; tell me if you want to be told.
I teach mathematics in Switzerland, in three systems at once: the IB Diploma, the French baccalauréat and the British curriculum. Writing exercises for my classes is a weekly habit; Hence is where I do it for everyone, in my own time and separately from my school.
I use AI to draft and to check, and I say so. What makes a question good enough to publish, I decide, and the last check is mine.
LennyP.S. Found a mistake? Tell me at [email protected]: it is corrected within 72 hours, for everyone.