Using Arrays to Understand Multiplication

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Multiplication

Slide 1  Using Arrays to Understand Multiplication
 By: Erica Kimble

Slide 2  Next Generation Standards
 M.3.OA.1 Interpret products of whole numbers, e.g. interpret 5x7 as the total number of objects in 5 groups of 7 objects each
 M.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

Slide 3  Multiplication Using Arrays
 In the beginning of introducing multiplication, arrays are sued to provide a visual representation for students to actually see the problem as opposed to just memorizing facts.
 In this Mix presentation, examples of multiplication number stories and how to use arrays to solve those stories will be given and demonstrated.

Slide 6  Stephanie has 4 boxes of crayons. Each box has 5 crayons in it. How many crayons does she have all together?

Slide 7  Max has 3 dog pens in his yard. Each pen will hold 6 dogs. How many dogs are in Max’s yard?