# 3.OA.D.8 Modeling Word Prob four Operations_Cindy's Balloons

## 3.OA.D.8 Modeling Word Prob four Operations_Cindy's Balloons

**Evidence Statement 3.D.1- Solve multi-step contextual word problems with degree of difficulty appropriate to Grade 3, reuiring application of knowledge and skills articulated in Type 1 Evidence Statements.**

### Cindy's Balloons

## Part A

Cindy bought 84 balloons for a party. She bought 6 packages of red balloons. There were 8 balloons in each package of red balloons. She also bought gold balloons. There were 4 balloons in each package of gold balloons.

- Find the total number of gold balloons Cindy bought.
- How many packages of gold balloons did Cindy buy?
- Write an equation or equations to represent he total number of gold balloons
**and t**he number of packages of gold balloons Cindy bought.

Enter your equation or equations in the spaced provided.

## Part B

Cindy also bought 9 goodie bags for the party. She bought 63 pieces of candy to put in the goodie bags.

- Write an equation to show how many pieces of candy she will put in each bag if each bag gets an equal number of pieces.
- Use k as the unknown number of pieces of candy per bag in your equation.

### Student Copy

## Scoring Rubric Part A

### Score 4

Student response includes the following elements.

Computation Component = 2 points

- The student provides the correct number of total gold balloons.
- The student provides the correct number of packages of gold balloons.

Modeling Component = 2 points

- Valid method to determine the total number of gold balloons.
- Valid method to determine the number of packages of gold balloons.

Sample Student Response:

6x8=48

84-48=32

32 gold balloons

32÷4=8

Cindy bought 8 packages of gold balloons.

### Score 3

Student response includes three of the elements.

### Score 2

Student response includes two of the elements.

### Score 1

Student response includes one of the elements.

### Score 0

Student response is incorrect or irrelevant.

## Scoring Rubric Part B

### Score 1

Student response includes the following elements.

Modeling Component = 1 point

- An equation, with a letter representing the unknown, that could be used to find the number of pieces of candy per bag.

Sample Student Response:

63 ÷ 9 = k, 9 x k = 63

### Score 0

Student response is incorrect or irrelevant.