This series of prisms demonstrates to the child the change in width (breadth) while the length of 20 cm remains constant. Further practice with the brown stairs indirectly prepares the child for concept in plane geometry, area & volume.
The Cylinder Blocks provides the first stage introduction of experiences in visual discrimination of size. Grasping of the knobbed cylinders indirectly prepares the child for writing by developing the three finger grip.
These Number Rods are well suited for working on activity table. With these rods, the child explores counting & Arithmetic. They consist of 10 wooden rods divided in to units increments by alternative color of red & blue.
These series of rods develops visual discrimination of length, while height and width remain constant. Activities with these rods prepare the child for working with the number rods, as well as other mathematical concepts.