**1.4 Introduction to Multiplication—Products of Whole Numbers and Area Related to Mulitpication and Addition**

**3.OA.1 Interpret products of whole numbers, e.g., interpret 5 × 7 as the total number of objects in 5 groups of 7 objects each.***For example, describe a context in which a total number of objects can be expressed as 5 × 7.*

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**3.OA.3 Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.**__-__

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Essential questions

3.MD.7 Relate area to the operations of multiplication and addition.

a. Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.

c. Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths3.MD.7 Relate area to the operations of multiplication and addition.

a. Find the area of a rectangle with whole-number side lengths by tiling it, and show that the area is the same as would be found by multiplying the side lengths.

c. Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths

*a*and*b + c*is the sum of*a*×*b*and*a*×*c*. Use area models to represent the distributive property in mathematical reasoning.Essential questions

• What is multiplication? • How do you use multiplication to determine the

products of whole numbers?

• How do you use multiplication to solve word problems?

• How do you find the area of a rectangle using multiplication/addition?

• How can you use arrays to solve for area?