Oncourse prototype

Lessons that play like a Vox video

Built from Harsha's Vox method: one picture per sentence, each landing on its word, cuts hidden in a zoom, and a tutor's real voice. The pictures are drawn, not filmed, so you can answer and tap them.

Binary search A phone book has a thousand pages. If you always open it in the middle, how many opens until you find one name? Your heart's doors Put your hand on your chest and you'll feel lub dub. So what's actually making that sound?

Best on a laptop with sound on. Each lesson takes about a minute and a half and stops to ask you things.