3.OA.A.3

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- 3.OA.A.1Interpret 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.
- 3.OA.A.2Interpret whole-number quotients of whole numbers, e.g., interpret 56 ÷ 8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each. For example, describe a context in which a number of shares or a number of groups can be expressed as 56 ÷ 8.
- 3.OA.A.3Use 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.
- 3.OA.A.4Determine the unknown whole number in a multiplication or division equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 × ? = 48, 5 = _ ÷ 3, 6 × 6 = ?

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## 3.OA.A.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.

53 Lesson(s)

### Each Orange Had 8 Slices

3rd Grade Math »
Unit: Understanding Multiplication

3rd Grade Math »
Unit: Understanding Multiplication

### Counting Clams - A Tidal Flat Adventure

3rd Grade Math »
Unit: Multiplication

3rd Grade Math »
Unit: Multiplication

### Swimming Swamp Monkeys - Using an Open Number Line to Solve Word Problems

3rd Grade Math »
Unit: Multiplication

3rd Grade Math »
Unit: Multiplication

### Collections of Equal Groups

3rd Grade Math »
Unit: Understanding Multiplication

3rd Grade Math »
Unit: Understanding Multiplication

### Where Do These Nails Go?

3rd Grade Math »
Unit: Going Batty Over Measurement and Geometry

3rd Grade Math »
Unit: Going Batty Over Measurement and Geometry

Big Idea:

#### Students deserve and need opportunities to work with their knowledge inside of a real life situation that means something to them. This unit, and this lesson, requires students to apply many of this school year's skills.

Favorites
(2)

Resources
(22)

Reflections
(4)

### The Tree of Peace: A Division Lesson

3rd Grade Math »
Unit: Division in Context

3rd Grade Math »
Unit: Division in Context

### Nailed It!

3rd Grade Math »
Unit: Going Batty Over Measurement and Geometry

3rd Grade Math »
Unit: Going Batty Over Measurement and Geometry

Big Idea:

#### Students deserve and need opportunities to use their knowledge applied to a real life situation that means something to them. This unit, and this lesson, requires students to apply many of this school year's skills.

Favorites
(2)

Resources
(15)

Reflections
(1)

### Moving Along with Talking Moves

3rd Grade Math »
Unit: Developing Mathematical Practices

3rd Grade Math »
Unit: Developing Mathematical Practices

### Variables

3rd Grade Math »
Unit: Understanding Multiplication

3rd Grade Math »
Unit: Understanding Multiplication

### Soaring Skyscrapers: a Division Lesson

3rd Grade Math »
Unit: Division in Context

3rd Grade Math »
Unit: Division in Context

### The Multiplication and Division Connection

3rd Grade Math »
Unit: Sharing Equally with Division

3rd Grade Math »
Unit: Sharing Equally with Division

### What is Division

3rd Grade Math »
Unit: Understanding Division

3rd Grade Math »
Unit: Understanding Division

### Multiply and Divide by 10

3rd Grade Math »
Unit: Fluency to Automoticity

3rd Grade Math »
Unit: Fluency to Automoticity

Big Idea:

#### Counting by 10's is easy for students of this age. Knowing that base 10 can be used to help multiply and divide in the higher numbers by decomposing is critical. This lesson sets the base for future work.

Favorites
(2)

Resources
(12)

Reflections
(1)

Common Core Math

### Kindergarten

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HS Algebra

HS Functions

HS Geometry

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Ninth and Tenth Grade

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