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
Apple Sorting Activity Begin by cutting out apple shapes. In the example shown, four colors of apples were used: red, green, yellow, light green. Cut a circle from the center of each apple. Attach the apples to cardboard tubes using clear tapes.