3 ms·

Khan Academy is a treasure of a service. Probably my favorite non-profit out there. High quality information with low barrier to entry. It got me through Calcul

• 7thpower 2y ago
  I tell basically every parent I meet about it with the enthusiasm of Tom cruise jumping on Oprah’s couch.
  • pjmorris 2y ago
    So does my wife; she's a high-school guidance counselor.