You also run into the issue of little Billy not doing his homework because he already understands the lesson and doesn’t want to waste his time.

My math teacher would make me take tests sitting next to her because I wouldn’t do homework but aced the tests. Eventually she realized I wasn’t cheating, I was just able to grasp the concept from her lectures alone.

But quizes should be used to determine which students need extra practice on a subject. Since everything is digital now, it wouldn’t be difficult to build the algorithm.