This document provides examples for calculating the circumference and area of circles. It begins with a basic skills quiz, then provides homework assignments. An anticipatory set asks students to compare circumference and area in a Venn diagram. The remainder of the document provides word problems to calculate radius, diameter, circumference and area when given any one of those values. It concludes by asking how a student would explain the lesson on circles to an absent classmate.

1. AIM: Circumference and Area
of a Circle
Do Now
Basic Skills Quiz #14
1

2. Basic Skills Quiz #14
1.) Subtract and write your answer in simplest form.
1 3
8 4 5 5
2.) Complete the following decimal operation.
5.7 1.23
3.) What is the Greatest Common Factor of 4 and 20?
4.) Evaluate using the order of operations.
8-9÷3+7
5.) Round the following to the nearest hundredth.
987.654
2

3. Homework: Pages 440-441 #6-8 all, 13, 14, 21-24 all, 26, 30-38 all
3

4. 4

5. Anticipatory Set: Fill in the following Venn Diagram
based on the similarities and differences between
circumference and area.
5

6. 1
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the area of a circle is 113 feet2,
what is the radius?
6

7. 2
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the diameter of a circle is 12
feet, what is the circumference?
7

8. 3
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the circumference of a circle is 58
feet, what is the diameter?
8

9. 4
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the radius of a circle is
14 feet, what is the area?
9

10. 5
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the area of a circle is
568 miles2, what is the
diameter?
10

11. 6
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the radius of a circle is
10.5 inches, what is the
circumference?
11

12. 7
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the circumference
of a circle is 78 inches,
what is the radius?
12

13. 8
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the diameter of a
circle is 8 miles, what is
the area?
13

14. BEFORE YOU LEAVE:
AIM: Circles
How would you explain today's
lesson to a student who was
absent today?
14

15. Mr. Tjersland's Math 7
Homework: Homework Sheet
15

16. AIM: Circumference and Area
of a Circle
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the area of a circle is 113 feet2,
what is the radius?
16

17. AIM: Circumference and Area
of a Circle
Use the Pi Button, include units with your final answers, and
round all final answers to the nearest hundredth.
If the circumference of a circle is 58
feet, what is the diameter?
17