Love this idea! It can be adapted to any grade level, students can demonstrate properties by making number sentences out of play dough. Or answer greater/less than questions etc. Built in manipulative for any concept.
Play Dough Activity Mats Busy Bag: Free Printables!
PLAY: This source includes free play dough mat printables that are great for young children. They can have fun making a variety of things for each mat that can improve the muscles/movement in their hands.