This is a huge pet peeve of mine. Some classes they get their tests back, sometimes they are gone over. Some classes they are never seen again- even when my kids have requested it. We’ve actually had to fight just to get our kids to see their tests. There were so many mistakes in grading on the tests, it was ridiculous. Every math test my D2 took last year was graded wrong. If kids never get their tests back and they never go over them, how do they learn what they don’t know?
School loves to say it is because of cheating- my response is make a new test. Kids can tell each other lots of things on a test right after they walk out of class and we have A/B days, so half the kids take the test on the first day could tell the kids who take it the second day. It has nothing to do with cheating.