The array can be shown as 5 groups of 3 showing that 5 x 3 = 15. Or it could be shown as 3 groups of 5 showing that 3 x 5 = 15. This demonstrates that multiplication is commutative. Image caption, ...
The math standards issued by the Common Core State Standards Initiative have made life easier for innumerable teachers, and this compilation of common core multiplication strategies for 3rd and 4th ...
VILLA RICA, Ga. -- It was meant to explain, but it's left many scratching their heads. Villa Rica Elementary posted the video of fourth-grade teacher Mrs. Jiles explaining "Area Model" math on its ...
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