khanacademy

So proud for my son. He just got the DaVinci badge on @khanacademy It means almost 1h of math a day for the past 2 years. This is the future of education. Kudos to the team! pic.twitter.com/5rbnzNBH0E

— Vlad #Decrypted Stan ⚡️ (@vladstan) April 30, 2018