This worksheet has saved me so much time!
At the start of every class, while my students complete their warm-up, they pass this grid around the room and check off the questions they have on the homework. By the time their warm-up is finished, I have a grid that clearly shows which homework problems we need to go over.
No more wasting time asking who has questions. No more putting students on the spot for not understanding something. This is a great way to engage students who are too timid to ask a question. This also serves as a great record for revising lesson plans and homework assignments year to year. When I have extra time at the end of class, I take out last year's grid for the upcoming homework assignment and nip problems in the bud!