The wooden tray contains 9 geometric form cards for use with the three basic shapes of the Demonstration Tray. Each shape is represented by a solid, a thick lined and a thin...
The Geometric Form Cards consist of three series of 35 cards that correspond to the figures contained within the Geometric Cabinet. Series include 7 each of solid, thick lined...
The Third Box Of Color Tablets introduces the final stage in color discrimination – that of grading. The box contains 63 tablets representing nine colors in seven graded shades...