Yoga with Adriene offers free videos for all skill levels- try her entire Yoga P.E. series for a healthy break during the virtual school day!
This article explains how to practice Progressive Muscle Relaxation: https://www.verywellmind.com/how-do-i-practice-progressive-muscle-relaxation-3024400
Or try using Guided Imagery: https://www.verywellmind.com/use-guided-imagery-for-relaxation-3144606
Browse books on Mindfulness & Meditation on Hoopla with your library card! https://www.hoopladigital.com/genre/917231064