Exit Card – “An exit card is a quick and easy method of assessing student understanding on a particular idea, skill, or topic. The teacher teachers a skill or concept that is central to the lesson and gives students the chance to work with it and discuss it. Just a few minutes before class ends, the teacher poses a question that probes student understanding of the topic (rather than information recall) and asks students to write their name and a response to the question on their index card (slip of paper, etc). Students turn in the card as they leave the room (or someone may collect the cards). The teacher does not grade the exit cards, but rather sorts them in categories representative of student understanding… as an alternative, teachers sometimes use a “3-2-1 format” on exit cards. In this instance, students might write the three most important ideas in the lesson, two questions they still have about the lesson, and one way they can use what they learned. Either approach can be modified to match lesson goals and learner needs.” (Tomlinson & Strickland, p. 352).
C. Tomlinson & C. Strickland (2005) Differentiation in Practice: A Resource Guide for Differentiating Curriculum Grades 9-12. ASCD.