###### Sunnyvale

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###### level5

## Mr. Jake

### Target 1

###### Lesson Type:

Continuation

geometry

:

measurement

5.G.M.10

###### Supporting targets:

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1

###### 2:

2

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3

###### 4:

4

###### 5:

5

###### Grade:

HS

###### Vocabulary:

Circles, Area, Pi, Circumference, Radius, Diameter

Activities:

Use Circumference and radius/diameter to calculate Pi

Use visual experiments to understand how to find the area of circles

Use the formulas for circumference and area to answer questions about circles

###### Challenge Problem:

Given a circle with a radius of 5 cm, find both the area and circumference

###### Challenge Data:

### Home Exploration

###### Guiding Questions:

What is the formula for calculating circumference? 2 * pi * radius

What is the formula for calculating area of a circle? pi * radius ^ 2

What is the value of pi? 3.14

###### Challenge Answer:

circumference = 31.4 cm area = 78.5 cm squared

### Target 2

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###### Supporting targets:

###### 1:

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###### 5:

###### Grade:

###### Vocabulary:

Activities:

### Home Exploration