Free Manipulative ACORNS! Yep, free manipulatives for Math Activities! Go outside! Surprisingly, they are everywhere! Unless the squirrels get the acorns first! The kiddos will separate their acorn collections into groups of like pieces. Once the kiddos have determined their groups, they will sort their collection of free manipulative acorns on their grid. Then complete the recording sheet to describe their groupings. Discussion questions are provided. Enjoy!!