I believe this is one of the most important parts of the day. A recap of the days events, learnings. Just last night a student was in the class room I asked what was new today (learned)One student said he didn't know how to remove the second gauge set now he does. And of courses you have the one that didn't learn anything. I thought you had never used a fish scale? answer I hadn't but I figured it out. So if you learn how to use it on your own what it doesn't count? It's funny sometimes how a student thinks and justafies his thinking process. But getting back to reviews you are correct it does give an idea of how the student absorded the information from the day. Reviews need to be done each and every day.