Saw these style boards on Oriental Trading for use as geometry boards. Wondered a diy hack. Use glue on bottom circle of thumbtack to secure it from being plucked out by little fingers. Sowdering About in Seattle: Toddler Busy Boxes
Practice matching colors with this FREE printable! Preschool color sorting and recognition activity. I would hang this on the wall and have just one matching picture attached with velcro for the kids to mix and match for color recognition!