# 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.

## 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 the 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.

## 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.