Smart practice is based on two learning methods: spacing and testing.
Spacing helps us retain information and concepts better if we learn them in multiple, spread-out sessions, rather than one “bulk” session. Effect of spacing is backed by extensive research in psychology.
The term “testing effect” comes from cognitive psychology, too. Its definition is that knowledge retention is improved by using tests to retrieve information during the learning process. In this case, frequent testing or quizzing has nothing to do with scores - it’s a learning tool that helps students find out what they don’t know yet and need to study more.
So, with smart practice, replaying questions from a kahoot brings up the testing effect, and, with steps distributed in time, it’s enhanced with the spacing effect to maximize knowledge retention.