This would be a great activity for an indoor recess. The children could make the ring and decide what the game rules are.
Games for learning breath control to improve a child's breath during their yoga practice :: yoga for kids with special needs, oral motor play, sensory processing disorder, low muscle tone, candoyoga.net
STEM Activity for Kids: How to Make Straw Rockets (w/ Free Rocket Template)- Fun for a science lesson, outdoor play activity, or unit on space! ~ BuggyandBuddy.com
Ice Cream ABCs Game! A fun and active way for preschool kids to practice uppercase and lowercase letters!
A fun & creative way to build SO many skills (balance, kinestethia, visual motor, self-regulation)...the list goes on!
Spider web fine motor game for preschoolers and toddlers. A fun spider activity!
Fine motor, lifting objects with various tools including large tweezers, chop sticks...explore
OnePerfectDay: Easy DIY for Kids - Castanets
Loads of fun science activities and ideas for 3 and 4 year olds from Go Science Girls.