Overview
The child arranges ten red rods in sequence from longest (1 meter) to shortest (10cm), creating a stair pattern that isolates the single dimension of length. All rods have identical cross-sections (2.5cm × 2.5cm) and color, so only length varies. This material directly prepares for the Number Rods in mathematics.
Objectives
What the child gains from this work
Discriminate between ten gradations of length. Develop visual judgment of "long" and "short". Refine gross motor coordination (carrying long rods requires balance). Experience length as a measurable, comparable quality. Prepare directly for Number Rods (mathematics).
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