Como podemos ajudar?

frs.veerman

Atividade recente por frs.veerman

Am I missing important insights and material by only doing exercises and mastery challenges?
1. Comunidade
2. General Khan Academy Questions
I don't use quizzes, unit tests and course challenges, but only exercises and mastery challenges. It works fine for me, but something is starting to nag at me. Maybe I'm using Khan academy in a way...