Physical movement, STEM challenges, arts and crafts, games, and old-time favorites; this post from WeAreTeachers lists 40 ideas for keeping kids engaged on those inclement weather days.
If you are familiar with GoNoodle for physical activity, then perhaps you have heard of Cosmic Kids Yoga. If not, it’s a source made up of 10-15 minute videos that incorporate stories, music, and characters to make yoga fun. Try it with your students and check out all the other ideas.