Students so engaged in their play/reading/artwork that they don't realize it's time to transition activities? A teacher's hand bell is one of those essential teaching aids that no classroom is complete without. Steel Hand Bell, PK4 Make it a game - whoever sits down/cleans up/gets in line the fastest gets to ring the bell the next time. Just ring this classic hand bell when you need your students to listen. Tell your students in advance that the next time they hear the bell ring, it will be time for lunch, snack, recess or cleanup, and their transitions will be so much smoother.