Teachers or home-schooling parents easily demonstrate geometric relationships, vertical and horizontal alignment, sorting, pairs, size relationships, measurement, balance and even molecular designs. This 90-piece set of WEDGITS product was designed around the developmental requirements suggested by the teacher market. Within the box are six 15-piece sets of WEDGITS. Each 15-piece set is a solid color. A set of WEDGITS Design Cards, a Parent/Teacher Activity Guide and a WEDGITS Jumping Frog design poster are included to support classroom, home schooling, and/or daycare activities. The design cards segment 15-piece designs into graduated building levels that allow the teacher to assess each child's reasoning and manipulative skills. The front side of each Design Card offers a color rendering of the design while the back side offers a black and white rendering (along with a quantity and size reference for each block required).