The Brown Stair.
Also called the Broad Stair, this series of prisms shows the child how each prism changes in width (breadth), while the length remains constant.
By practicing with The Brown Stair the child is prepared for the mathematical 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.
Item Number – CHS0001
One of our favorites, the Broad Stair or Brown Stair is a constant attraction in the Montessori classroom. A frequent partner to the Pink Tower, the Broad Stair shares some qualities in common with its upright partner: dimensions in diminishing tenths that support the…