If exams are just testing, then they're basically busywork. Exams can and should be a learning aid. The assumption is that every student should get 100% if they

If exams are just testing, then they're basically busywork. Exams can and should be a learning aid. The assumption is that every student should get 100% if they're doing a good job. But 50% should be okay. Then when you go back and see the mistakes you've made, you learn. Setting people up to fail can be a valuable learning experience. The problem is not the teacher, it's our society's attitude towards failure.