Before giving my precalculus/IB students a summative assessment, I like to give them a group/practice test about a week prior, to give them a chance to study together before the "real" test a week later. (If I were to call it a "review," they would treat it as a homework and just wouldn't take it seriously!) They work in cooperative groups of 3 or 4, and since my students change groups every 3 weeks, I choose who their groups will be.
I weight it one-quarter the weight of a "real" test in the