I won't call the teacher names. You do need help making the case to the teacher that returned tests are crucial educational tools.
Start with the school councilor on this policy. Then move to the principal. Build your case on your child building study skills and test taking skills.
The policy of locking up the math tests isn't the teacher. It's the district policy for high school math tests, and has gone on for years. I'm not sure pushing this policy is the best place for me to start. I had this issue with my daughter. My son can go to the teacher and request to see the tests in office hours. And I am probably going to push for him to do this. My son's take on it is that he has gotten a chance to look them over. But he can't really explain much about what he has done wrong, except that the questions are hard.
