Geoboard (Transparent) 11X11 flat head peg grid

Geoboard (Transparent) 11X11 flat head peg grid This Transparent Geoboard is 9" x 9" in measure & can be used on overhead projector. It has  11 x 11 peg grid.  The knobbed pins hold rubber bands (included) in place. The Geoboard is primarily used in the exploration and recognition of shapes, designs, spatial relationships, angles, fractions, area, perimeter, symmetry and coordinates. It is suitable for ages 5 to 13.