Here is another interesting use for sticky notes, or post-its: students put a red or green one on their PCs or desks to show if they are following the teacher’s explanation and whether the teacher needs to slow down and explain again. You can read more about it in this article by Kriti Khare. She writes:
“It was my way of making them be present because their contribution, even if it was half-hearted, to put up their green post-it note was required for me to proceed with the concept.”
Could be useful for those extra-challenge moments!