Print the "I got it" cards on green paper (preferably card stock), the "I have a question" cards on yellow and the "Help" cards on red paper. Cut them out in the shape you prefer. Make one hole punch and place in a metal ring. I suggest laminating them before hole punching. Students can use them as you teach, but especially during independent work. Teacher will be able to pull back the students displaying red cards and then quickly conference with the students displaying yellow cards. Students displaying the green cards can help others. This is a great way for students to self evaluate and self monitor their learning.