math inv #3 p. 131
TRANSCRIPT
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Multiplication Patterns
Investigation #3; p. 131-135
4 x 3 = 3 x 4
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Models of Multiplication
Rectangular ArrayAreaSquare Numbers or Perfect Squares
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Area4 squares on this side
4 s
qu
are
s on
th
is
sid
e
TOTAL number of squares = 16
4 squares x 4 squares
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Rectangular Array
5 columns
3 rows
Multiplication Model 3 rows of hearts x 5 columns of hearts 15 hearts
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15
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Square Numbers or
Perfect Squares
12 22
or 1 x 1
or 2 x 2
32
1 squared
2 squared 3 squaredor 3 x 3
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Perimeter Song to Remember