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Teaching the Core

Description: Students work in groups on two tasks that develop their understanding of properties of multiplication and division

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*Teacher Advisor is 100% free.- 3.OA.A.1
- 3.OA.B.5
- 3.OA.B.6

Major StandardsSupporting StandardsAdditional Standards

Standard 3.OA.A.1### Prerequisites for 3.OA.A.1

### 2nd Grade

### Upcoming Standards for 3.OA.A.1

### 3rd Grade

### 4th Grade

### 5th Grade

Interpret products of whole numbers, e.g., interpret 5 x 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 x 7.

Part of Major Cluster 3.OA.A

5.NF.B.5

Interpret multiplication as scaling (resizing), by:

5.NF.B.5.A

Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication.

5.NF.B.5.BExplaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a product smaller than the given number; and relating the principle of fraction equivalence a/b = (n x a)/(n x b) to the effect of multiplying a/b by 1.