This review activity includes 8 questions for independent group review. Groups work one one questions at a time (at their own pace) ans swap their card for a new one if their answer is correct.
I use this in a 40-50 minute class as a great independent review. I get them started and off they go. The engagement is fantastic! I don't treat it as a competitive activity, but they do! Answrs and worked-out solutions are provided.