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Number and Operations Session 4: Notes
 
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Notes for Session 4, Part B


Note 7

The area model can be used for many types of multiplication problems. It works for whole numbers, fractions, decimals, and algebraic expressions. The area model also explains the algorithm for multiplying two-digit numbers; you can see the connections if you put the algorithm next to the model.

<< back to Part B: Area Models for Multiplication and Division


 

Note 8

The area model clearly shows the relationship between multiplication and division. For multiplication, you make a rectangle with the given dimensions and then list the pieces of the total area. For division, you use the given pieces to make a rectangle with the divisor as one dimension; the other dimension is then the quotient. For both multiplication and division, you have three parts: the two dimensions and the area of the rectangle.

<< back to Part B: Area Models for Multiplication and Division


 

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