MathPrisma
Topic
Type
Level

Try “slope”, “x²”, a unit code like A3 — or anything you want to learn.

Browse the curriculum map → Start with the first module →
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Free · no sign-up · in 3 languages

Learn the math,
one clear step at a time.

MathPrisma is a free interactive course that takes you from arithmetic foundations all the way to test-day mastery. Every lesson teaches the why, every widget lets you play with the idea, and endless auto-checked practice makes it stick.

Start with F1 · Operations & Integers Browse the full map →

15 interactive modules live · 40 on the roadmap

y=2x+1

m=63=2

Δx = 3 Δy = 6 A B
Fig. 1 · A line you can touch. Drag the points — the equation follows.

The journey

Six stages, from arithmetic foundations to test day. Start where you are.

  1. 0 Foundations The arithmetic and pre-algebra everything else stands on. 8 of 8 units live
  2. 1 Algebra Equations, lines, functions, and systems — the core of every test. 7 of 7 units live
  3. 2 Advanced Math Quadratics, exponentials, radicals, and polynomials. 0 of 8 units live
  4. 3 Problem-Solving & Data Ratios, percentages, statistics, and probability in context. 0 of 6 units live
  5. 4 Geometry & Trigonometry Angles, triangles, circles, area, volume, and right-triangle trig. 0 of 6 units live
  6. 5 Test Readiness Mixed, timed, full-length practice under real conditions. 0 of 5 units live

See every unit on the map →

How each module works

1

Learn

F5 · Percentages

“Percent” literally means per hundred. So 40% of 25 asks: cut 25 into 100 equal parts, then keep 40 of them.

40%×25  =  40100×25  =  1040\% \times 25 \;=\; \tfrac{40}{100} \times 25 \;=\; 10

Every rule arrives with its why.

A plain-spoken walkthrough that builds the idea from scratch and shows why each rule works.

2

Explore

40% × 25 = 10

Hands-on tools — draggable graphs, live calculators, visual models — to build real intuition.

3

Practice

Endless auto-generated questions that check your work, track a streak, and reveal every step.

On the roadmap

Then sharpen for the real test

Once the curriculum has done its job, Test Readiness takes over: timed modules, full-length sections, error analytics, and drilling tools built to turn skill into score.

Mixed practice will be free. The advanced toolkit will be a one-time purchase that keeps the rest of the site free for everyone.

Preview Test Readiness →

Is MathPrisma helping you?

The whole course is free and always will be. A small donation helps keep it growing.

Support the project ♥