Square Roots
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This 24x24 square shows how square root can be taught. It is divided up into 4x4 and 20x20.
Galleries
QuadrilateralsSource
Ellsworth D. Foster ed. The American Educator (vol. 1) (Chicago, IL: Ralph Durham Company, 1921)
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2379×2400, 742.7 KiB
1015×1024, 149.9 KiB
634×640, 81.4 KiB
317×320, 31.8 KiB