All of Khan Academy’s library of trusted, standards-aligned videos, articles, practice questions, and lessons are completely free for anyone who wants to use them. We do not require contracts, have no spam, and no ads. Instead, the organization is supported by the generosity of individuals and grants .
Why is Khan Academy free?
All of Khan Academy’s library of trusted, standards-aligned videos, articles, practice questions, and lessons are completely free for anyone who wants to use them. We do not require contracts, have no spam, and no ads. Instead, the organization is supported by the generosity of individuals and grants .