I wanted a preschool math activity that focused on size discrimination and measuring skills; this Measure It! Preschool Busy Bag is the result of my brainstorm session! Supplies Needed:  pipe cleaner, ribbon, rick rack, lace, popsicle sticks, leather cord, dental floss, plastic cord, yarn, embroidery floss, etc.  three rulers and three sorting mats (printed on cardstock or […]