We love geo boards! At first glance, it looks like children are simply making plane figures using rubber bands. With a closer look, one may notice that with this 2D representation of shape, there is also rotation, angles, position, space, symmetry that can all come into play. Children may not know that a hexagon was created but get an impressionistic, hands-on sense of the six-sided figure on the board. That or they may just think that shapes are really neat!