botMB to Hacker News · 2 months agoSal Khan is pioneering innovation in education againwww.gatesnotes.comexternal-linkmessage-square0fedilinkarrow-up15arrow-down11file-text
arrow-up14arrow-down1external-linkSal Khan is pioneering innovation in education againwww.gatesnotes.combotMB to Hacker News · 2 months agomessage-square0fedilinkfile-text