Khan Academy

Khan Academy

Free video lessons and mastery-based practice, especially in math.

Grades
K-12 and early college
Faith
Not stated
Format
Online, Video
Price
Varies; see the facts below

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What it is

A nonprofit website with free courses in math, science, English language arts, social studies, economics, and computing. Students watch short instructional videos and work practice exercises that track which skills they have mastered. Parents can set up accounts to assign work and follow progress; the Khanmigo AI tutor is a separate paid add-on.

Written by the Homebuilt team from the publisher’s own materials, checked September 2026. Prices and editions change, so confirm with the publisher. Learn more: About Khan Academy · Khanmigo pricing

Grades
K-12 and early college
Faith
Not stated
Format
Online, Video
Price
Courses free; optional Khanmigo AI tutor $4/month or $44/year per parent or learner account (teachers free)
Subjects
Math, Science, Language arts, History, Grammar
Style
Online, Mastery-based