How to prove a student actually learned

The easiest number to collect is the worst one: how many opened the lesson. It measures curiosity rather than learning, and it climbs every time you send another reminder.

The number that matters is how many can now do something they could not do before. That is not measured by a button marked complete, but by a dated attempt at questions with right answers, or by work a learner hands in and an instructor reads.

So every certificate at Masar points at an attempt with a date and a mark, and anyone can verify it by its code. A certificate that points at no evidence is a printed page, however well it is designed.