Welcome! I hope everyone is doing well and staying safe! I know your children have lots of energy so I've compiled a list of activities and resources to keep them busy and moving!
https://www.gonoodle.com/ is free and tons of their videos are on YouTube. I'd recommend the Call and Repeat section where you copy the silly dance moves or the Indoor Recess section for silly exercises!
These are my favorite movement activities!
GoNoodle Dancing
Check out The Learning Station's channel on Youtube!
The Learning Station
Jack Hartman has hundreds of videos for kids to move along to or learn the alphabet, shapes, colors, etc.
Jack Hartman
Follow along to these YouTube videos that include animal and science themes!