Kääpa Primary School
The memorisation effect is remarkable. After a Mastery assignment I can go straight to discussion. The students are explaining key concepts to me, not the other way round.
Tallinn Art Gymnasium
I've been using Nearpod and Playposit for some time. Compared to them Mastery is easier to use and students seem to remember better than before.
Rocca Al Mare School
It's well-balanced, there's the repetition and retention process but I can also see every student's own ideas. A cleverly nuanced system.