Paul's Online Math Notes provides free, downloadable notes for algebra, calculus and differential equations.
Math Planet
Mathplanet provides free high-school courses in pre-algebra, Algebra 1, Algebra 2 and geometry.
About Math Planet
Math Planet is a free learning site for high school math, run by Mattecentrum, a non-profit. It offers courses in Pre-Algebra, Algebra 1, Algebra 2 and Geometry, along with SAT and ACT prep. Extra material includes a Math Playground for elementary students and a basic Python course for middle school students.
Key features
- Free high school courses in Pre-Algebra, Algebra 1, Algebra 2 and Geometry
- SAT and ACT prep
- Math Playground for elementary students
- Basic Python course for middle school students
Best for: Students studying high school math or preparing for SAT or ACT tests.
Watch out for
- Listed courses are for high school math, from pre-algebra to geometry
Math Planet at a glance
- Website
- mathplanet.com
- Category
- Education & Learning › Mathematics Learning
- Type
- Website
- Pricing
- Free
- Platforms
- Web
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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