How many times have students said, " I didn't revise that bit", when you give them a test. I thought I would try an experiment and give my students an opportunity to show what they know. 10 Minutes to fill a blank piece of paper with everything you know about the option you've been studying. The results were quite interesting and as revealing as any test I could have devised. I think I could predict test scores based on the results, next term I will try combining a "tell me what you know" exercise with a test to see if there is much of a correlation. Another interesting point is how the papers highlighted misconceptions more clearly than a test which led naturally to discussion.

Note: I know some of the equations in the image are not correct.