Yes, I would recommend it! That is the best way to ensure that your stuff doesn't get stolen from your locker. You need to be responsible and keep the stuff in your locker secure. Make sure you get only a numeric or an alpha-numeric lock, no key locks allowed. You will have to give your homeroom teacher the combination.  NEVER SHARE YOUR COMBINATION with anyone (except your teacher)! If you do share your combination, it can be hard to get help if items are stolen from your locker, even though we do have cameras in the hallway.