Broad Stairs land-and-water-forms and a quarter to the

and a quarter to the hour

Largest cylinder: 5

This set of six wooden lock boxes is ideal for learning shapes

Card 'b' size: 19 cm x 14 cm

2 cm wide for squares

Broad Stairs land-and-water-forms and a quarter to theThe Broad (Brown) Stairs consist of ten hardwood prisms ranging from 1 cm x 1 cm x 20 cm to 10 cm x 10 cm x 20 cm. 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 Broad Stairs indirectly prepares the child for concepts in plane geometry, area and volume. We have Control Chart (Paper Cards) and Pattern Cards (PDF) for working with this set. Colour may