Exit Tickets

Definition: 

Exit Tickets: Exit slips — also known as exit tickets — are brief, informal assessments or reflections that you can use at the end of a lesson or class period.

From: Reading Rockets

Teachers could also use a similar procedure to begin a class:

Entry Ticket

"This technique (sometimes called Warm-Up, Do Now or Bell Ringer) gets students working as soon as they enter the classroom, increasing instruction time. Students are given Entry Tickets as they arrive at the door, follow the instructions, and complete the task immediately."

From: Teacher Toolkit