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Math: Uncharted

Math

Build real math fluency with interactive problems you can drag, type, and graph. Move from everyday arithmetic through algebra and geometry to trigonometry and calculus.

Easy to Intermediate
7 units
217 lessons

Follow the units in order, or explore any lesson that interests you.

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Course syllabus

7 units

1. Arithmetic
Numbers you can trust: decimals, negatives, fractions, ratios, and percent, anchored in receipts, recipes, and price tags.
22 lessonsStart here
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2. Algebra
From letters that hold numbers to lines that tell stories: expressions, equations, and the coordinate plane.
53 lessons
3. Geometry
Distance, area, and circles on the grid, ending with a park you design yourself.
22 lessons
4. Trigonometry
The bridge from triangles to waves: ratios that never change, the circle that runs them all, and the curves that repeat forever.
20 lessons
5. Pre-calculus
Sharpen every function you own: transform them, undo them, grow them, and follow them to the edge of calculus.
20 lessons
6. Differential Calculus
The mathematics of change: limits, the derivative as a slope you can grab, the rules that compute it, and what it reveals about every curve.
40 lessons
7. Integral Calculus
Adding up the infinitely small: areas that become exact, the theorem that ties them to derivatives, and the techniques that make integrals yield.
40 lessons

217 lessons across 7 units. Start with any published unit.