This is a different way to use the stoplight. Use it as an exit slip. Students put their name on a sticky note and then place it on green (I've got it), Yellow (almost there) or Red (I still need help).
Eight Reasons to use Exit Tickets in your Classroom
There are so many reasons why exit tickets are powerful classroom tools! This blog post lists how and why you should be using exit tickets in your classroom. It also includes FREE exit tickets and classroom examples!