Our verdict

Khan Academy

A free, donation-funded mastery platform that's hard to beat as a math and science supplement.

Review

Khan Academy offers short video lessons paired with practice exercise sets and instant feedback across math, science, reading, and more, entirely free with no ads. It's strongest as a core math spine or as a supplement layered onto another curriculum's other subjects.

Curriculum Grade

How we grade

B

  • Academic Rigor: 4/5
    Why this score

    The math sequence from arithmetic through calculus is deep and well-built, though it's not a complete cross-subject curriculum on its own.

  • Ease of Use: 4/5
    Why this score

    No setup beyond creating an account — lessons, practice, and feedback are all built into the platform.

  • Parent Time Required: 5/5
    Why this score

    Entirely self-serve; a parent can assign a course and check progress reports without teaching any of it directly.

  • Cost Value: 5/5
    Why this score

    Completely free with no premium tier, which makes it unbeatable on pure value regardless of what else it lacks.

  • Engagement: 3/5
    Why this score

    Short videos and instant-feedback exercises keep momentum going, though there's no narrative or game layer to sustain motivation long-term.

  • Flexibility: 5/5
    Why this score

    Fully self-paced and free of any grade-package structure, so it slots into or supplements almost any other curriculum without friction.

  • Independent Learning: 5/5
    Why this score

    Built entirely for independent, self-directed use with instant mastery checks.

  • Support & Community: 2/5
    Why this score

    There's no dedicated homeschool community or curated support layer — it's a general-purpose learning platform, not a homeschool program.

  • Special Needs Support: 3/5
    Why this score

    Self-paced mastery tracking helps some learners work at their own speed, but there's no built-in accommodation beyond that.

Pros

  • Completely free with no premium tier, ideal for tight budgets
  • Deep, well-sequenced math content from arithmetic through calculus
  • Instant feedback and mastery tracking help identify gaps quickly

Cons

  • No structured full-curriculum experience — works best combined with other resources for a complete program
  • Little to no direct teaching support or curated book lists
  • Early-elementary and PreK coverage is thinner than its 3-12 core content

Best for

Costs nothing, so it's an easy add-on for shoring up math or science under almost any other curriculum.

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