This series of prisms demonstrates to the child the change in width (breadth), while the length remains constant. Practice with the Brown Stair indirectly prepares the child for concepts in plane geometry, area and volume. The prisms are crafted in precise progressions from 1 x 1 x 20 cm to 10 x 10 x 20 cm.
Why choose us?
Our company specializes in the production of children's educational toys and teaching aids, and has many years of experience in the industry. The product design meets the needs of children's growth and is sold well in many countries around the world, serving various kindergartens and schools, and is well received.