This technique is used to determine the degree to which students have understood and internalized the main point of a class.

• Select a point in the course after the comletion of a major reading assignment, important lecture or a complex cooperative-learning activity.
• Give them an assignment to paraphrase something and give them an audience to write to.
• You could ask them to explain the first law of thermodynamics to first graders.
• This kind of exercise tests students at the Comprehension level in Bloom's taxonomy.