1. Give each student a set of identical cards. These could be
red (I am confused), green (I get it), and yellow (understand
somewhat). The cards could be A-B-C-D and used to
represent answers to multiple choice questions.
2. Pose a question to the class.
3. On a signal word, all of the students hold up their response
cards. A quick look around the room, provides the teacher
with immediate feedback on understanding.