Quiz-Quiz-Trade is a cooperative learning activity. Each participant has a card with a question. Students find a partner. They quiz each other on the questions and then trade cards. They then search for a new partner to repeat the process. This set of cards (which can be printed on business cards for easy separation) are questions about differentiation. They were designed for a teacher workshop. They could be used to assess prior knowledge or review information presented. Directions for Quiz-Quiz-Trade are also included.