Here is a set of students response cards. I use these for a quick glance around the room to check for understanding.
This set has 4 cards on each page, which makes for large cards. They were created with a plain white background to be printed on color cardstock paper. You can print all of the A's on one color and all B's on another color, or for those students who like to look around to see what color card everyone is holding up, you could print them on mixed colors of cardstock.
There are cards labeled "I Need Help," "I'm thinking," and "I got it." For this particular set of cards, I like to print them on red, yellow, and green. It gives me a visual of who needs help or who's still working.
There is also a set of blank cards to be used for free responses of dry erase marker (if laminated).
I also have sets of 6 and 9 cards on a page available, which makes for a smaller sized card.
Thank you for your interest.