The OT Toolbox has provided some great visuals on brain breaks as a self-regulation tool. To teach this concept and put break time strategies in place, here are some helpful resources:
Brain Breaks: https://www.theottoolbox.com/brain-breaks/
Self-Regulation: https://www.theottoolbox.com/zones-of-regulation-activities/
Visual Supports: https://www.theottoolbox.com/visual-schedules/
How to Create Scheduled Breaks: https://www.theottoolbox.com/how-to-create-sensory-diet/
Visual from here: https://northstarpaths.com/graphics-free-downloads/