Math is forever.
Open source · free · multilingual
Brazilian High School
optimized.
3 years · 12 quarters · 120 lessons
11 languages · 7 doors (formal, 5/10/15/25/40, practical) · native audio · 40-80 exercises per lesson
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Year 1 · 15 years old
40 / 40(100%)
Year 1 — Foundations
Establishes rigorous language: sets, functions, trigonometry, analytic geometry, vectors, matrices, combinatorics. The last lesson of each term is an integrative workshop. Lesson 9 ("average rate of change") already plants the seed of Calculus.
JP Math I + Math A · DE Klasse 10 · SG Sec 4 (E-Math)
Year 2 · 16 years old
40 / 40(100%)
Year 2 — Differential Calculus and Probability
Here the student formally meets the derivative. Alongside, they gain descriptive statistics and probability — the foundations for everything that follows in a Master's in Engineering, Economics, or Finance.
JP Math II + Math B · DE Klasse 11 LK · SG JC 1 (H2 Math início)
Year 3 · 17 years old
40 / 40(100%)
Year 3 — Integral, ODEs, Inference, Linear Algebra
The synthesis: integral calculus, ODEs (with the bridge to the Black-Scholes PDE), statistical inference, and introductory linear algebra. Whoever finishes Year 3 is ready for Calculus I in any federal-university engineering program.
JP Math III + Math C · DE Klasse 12 LK · SG JC 2 (H2 Math final)
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What you'll find inside
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7 doors in every piece of content
Formal, 5, 10, 15, 25, 40, practical — you choose the door. It does not matter if you failed Calculus or have not yet seen derivatives at school. Every central equation has a "Read aloud" button.
Notebook and dozens of exercises
Each lesson brings 40-80 exercises taken from the best public books (OpenStax, Active Calculus, Stitz-Zeager, books from JP/DE/SG). Sit down with the notebook and solve them. No miracles.