I had thought I saw somewhere that learning is specifically better when you are wrong, if the feedback for that is rapid enough. That is, "guess and check" is the quickest path to learning.
Specifically, asking a question and getting an answer is not a general path to learning. Being asked a question and you answering it is. Somewhat, this is regardless of if you are correct or not.
I hated when doing math homework and they didn't give me the answer sheet. If I could do an integral and verify if it's correct or not, I could either quickly learn from my mistake, or keep doing integrals with added confidence. Which is how I learned the best. Gatekeeping it because someone might use the answers wrong felt weird, you still had to show your work.
I imagine the thought process is that even when one must show their work, having a sneak peak at the answer allows a lazier student to work the problem forwards and backwards hoping to fudge through the middle plausibly well.
Yeah. I also felt it largely went at odds with the entire concept of flashcards. Which... are among the most effective tools that I did not take advantage of in grade school.
Specifically, asking a question and getting an answer is not a general path to learning. Being asked a question and you answering it is. Somewhat, this is regardless of if you are correct or not.