To check for understanding, I often have the students signal a 1-5 on their hands, with a 5 being," I know this so well I could teach someone else, and a 1 being "I am so confused" . I can easily group students for enrichment, practice, or reteaching this way.
One of our 3rd grade teachers has a stack of 3 colored cups for each student on the corner of his/her desk. (Just the plastic, disposable cups that you might purchase for a picnic. The students each have a green, red, and blue cup. These are stacked and placed upside down on the desk. If the student is good to go, s/he displays the green cup. If the student needs buddy help, s/he restacks so the blue cup shows. If s/he needs help from the teacher, s/he displays the red cup. This system is similar to when students place a colored card on their desk, but for some reason, the kids love the cups! It is also very visual, and easy for the teacher to see at a quick glance.
Using whiteboards or yes/no cards during the lessons is also an easy way to check for understanding. Also, when students are teaching each other during teach/ok, if you are circulating around the room you can readily pick up whether they are understanding the concept or not. If you ask students to fill in a cloze sentence, or write a summary sentence, this can serve as a "ticket to leave". As you read through these, you will be able to determine who understands and who still needs clarification or help. We, as teachers, want to be continually checking for understanding, rather than waiting to see if our students get it by their performance on a summative assessment.
Checking for understanding throughout the lesson is a great way to teach!
Deb Weigel
Co-Director, WBT Model Classrooms