Montessori Sensorial Practical:
The Broad Stairs or Brown Stairs.
The Montessori School Brown Stair, or the Broad Stair, is meant to develop the child's awareness of size difference. All ten blocks are the same length, but they vary in both length and depth. This material trains both the eye and the hand to discriminate and compare between wide and narrow.
Language:
Thick and Thin
The positives, comparatives, and the superlatives.
Purpose:
Direct Visual discrimination of dimensions (thickness).
Indirect:
- Refinement of voluntary movement.
- Muscular education of grip.
- Preparation for mathematics.
Control of Error:
The control of error lies within the child being able to discriminate the dimensions.
Age:
3 to 4 years
Points of interest during presentation:
the weight of the largest block
the order of progression in the prisms
the length of the prisms are all the same, but the width and weight vary
Vocabulary:
thick, thicker, thickest
broad, broader, broadest
narrow, narrower, narrowest
