Acorns are everywhere right now, and acorns are a great tool for learning math. Acorn math is a Waldorf-inspired sensory activity. Prior to doing it, go for a nice walk with the kids to gather all the supplies needed.
Materials: acorns, oak leaves, marker
Directions: Write numbers and simple arithmetic problems on the oak leaves with marker. Each leaf should have one number or one problem on it. The problem should be easy enough for the child to solve, yet hard enough to still be challenging. My 6 year old got “345+467” and “3/4+ 2/4,” for example.
Present the kids with a bowl of acorns and ask them to put the right amount of acorns onto each leaf. If the leaf says “3+4,” for example, the child has to put seven acorns on it, etc.