Using this fun emoticon formative assessment exit ticket, check for student understanding of the lesson. Each page comes with two exit slips-- print enough for your class (e.g. a class of 32= 16 pages, cut in half).
After the lesson, hand these exit slips out and have students complete the front page. On the back of the slip, I ask students to summarize the lesson and write down any questions they may have.
Students just 'get' these emoticons like nothing else!