Geoboards classpack offers opportunities for hands-on exploration of geometric concepts including shapes, symmetry, congruency, area, perimeter, coordinates, and spatial relationships. Sturdy plastic geoboards in assorted colors feature a 5 x 5 grid with umbrella-head pins to keep rubber bands in place as students create designs.Details:Assorted colorsBoards measure: 7.25" x 7.25"10 packRecommended for ages 5 and up