Elementary Mathematics
Lesson 106
Finding Factors
Rectangles of 12
Factor pairs
12 tiles arranged as 3 rows of 4 — one factor pair of 12.
Factor pairs
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Conceptual model: a simplified teaching picture.
Make different rectangles using exactly 12 square tiles.2 rows: how many tiles in each row?
Each rectangle gives a factor pair: 1 × 12, 2 × 6, 3 × 4.