In order to keep kids remembering their previous memory work, try putting it on jumbo craft sticks. Keep them in a tall cup or small bag. Every week ask a student if they want to take the "Memory Challenge" and randomly pull a stick out. If they can recite the work they get a food prize (be aware of food allergies). If confirmation is taught late afternoons on Wednesday or after dinner, you can give them a candy bar, peanut butter crackers, pack of fruit snacks, etc. It's middle school. They'll be hungry. They're always hungry!