Put two small codes on every topic. One plays your audio revision for the commute. The other puts you on the page, teaching that exact page, when a student points a phone at it.
Opens the chapter's audio revision with speed from 1ร to 2ร. Students listen on the bus, at the gym, before sleep. The speed they like is remembered.
Hear itOpens the camera. Point it at the page and the lecture appears on the page, on the part being taught. Point away and it pauses.
Watch itUpload the full PDF of your notes and a folder of lecture clips. We match topics to clips, make the codes for every page, and hand back a print-ready PDF with the codes in place.
Every scan is counted by page and by day. See which topics students revisit before exams, and which ones nobody opens. That's where the next doubt-clearing session goes.
We count scans, not people. No student names or phone numbers are collected.