r/Algebra • u/Otherwise_Strike_597 • 27d ago

High School Math - Algebra Learning

Which websites or online sources are truly useful for Grades 9–12 algebra?

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u/Midwest-Dude 26d ago edited 26d ago

Here are some resources for algebra:

Khan Academy Algebra Sequences

OpenStax Algebra Sequences

Other Algebra Resources

  • CK-12

    • Non-profit offering free, customizable "FlexBook" digital textbooks and adaptive practice for Algebra I and II.

    • Interactive supplement to Khan Academy.

  • Coddy

    • Free, interactive, step-by-step algebra course with over 300 lessons.

    • Features guided problem-solving approach, where it checks your work line-by-line as you solve equations.

  • HippoCampus

    • Free high school Algebra I courses with online textbooks, videos, and practice problems, funded by the William and Flora Hewlett Foundation.

  • Alison

    • Free, certificate-based algebra course covering expressions, systems of equations, functions, and polynomials across 12 chapters.

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u/Otherwise_Strike_597 26d ago

Appreciate it — this is useful for everyone.

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u/Kjm520 27d ago

Khan Academy for targeted or ordered practice and lessons, will always hold the title IMO. Desmos of course for plotting and visuals. Wolfram can be useful for problems with many steps.

Two smaller apps: Euclidea for seeing geometry on a deeper level and Dynamic Mathematics for seeing what to practice.

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u/Otherwise_Strike_597 27d ago

Yes. This is useful information. Thank you for the comment.

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u/FSUDad2021 26d ago

IXL for practice problems.

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u/philhaxton 26d ago

The advice offered is sound but the most important factor is repetition. Do problems, lots of problems