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Premium, interactive lessons that make you understand why math and science work — through discovery, not memorization. From anxious beginner to confident master.
Drag, slide, and play to derive every formula yourself. You'll feel the intuition before you ever see the equation.
One household, separate progress for everyone. Parents can follow along as the kids grow.
Wrong answers are nudges, not walls. Streaks and badges reward understanding — never punishment.
14 branches is a lot. Tell us your goal and we'll guide you through the right ones, in the right order.
Not sure where you stand? Take the 2-minute placement quiz →For coders, machine learning & data
The math that powers software and modern AI — the algebra and logic foundations, then the linear algebra, probability, statistics, and calculus behind machine learning.
Students — grades, exams & confidence
The classic school path, in the right order. Build from the foundations all the way to calculus, understanding why each step works before the next.
Accountants, finance & personal money
Practical money math for real life and work — the algebra you need, then interest, loans, and investing, plus the probability and statistics behind risk.
Physics & engineering
The mathematical toolkit for the physical sciences — algebra, geometry and trigonometry, the full calculus sequence, linear algebra, and physics and chemistry to put it all to work.
Foundations: fractions, decimals, percents, and the number system.
The language of math. Why letters exist and what equations really mean.
Where Pi lives. Shapes, space, and proofs that feel obvious.
Sin, cos, tan demystified. The unit circle as a shape printer.
Bridging to calculus: functions, limits, and the universe of change.
The mathematics of change. Derivatives, integrals, and infinity.
Calculus in higher dimensions. Gradients, multiple integrals, and vector fields — the math behind ML and physics.
The language of change itself. Model how things evolve — growth, motion, circuits, and waves.
The mathematics of chance. From coin flips to Bayes, distributions, and risk.
Making sense of data. From averages to Bayes' theorem.
The math behind AI, graphics, and data. Vectors, matrices, and transformations.
The math of computer science. Logic, sets, counting, proofs, and graphs.
The hidden patterns of integers. Primes, codes, and unsolved mysteries.
Money math for real life. Interest, loans, investing, inflation, and retirement.
Start free today. No credit card, no pressure — just understanding.
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