1. Pretest Please complete the pretest for this standard
on your own. Try to remember all you can from
our first discussion of this topic.
Day 1
The pretest can be found online at The teacher and student logins are the same as FCAT Explorer. If you have access to computers, you may wish to have your students complete this assessment online. Using the paper/pencil copy and a bubble answer sheet from Performance Matters will give you automatically graded assessment and valuable data for immediate use.

2. Solve real-world problems using measures of circumference, arc length, and areas of circles and sectors.
MA.912.G.6.5

3. LEQ: How can I solve real-world problems using measures of circumference, arc length, and areas of circles and sectors?
Vocabulary: Match each term with its definition.
Circumference
Arc Length
Sector of a Circle
Segment of a Circle
Region bounded by an arc of a circle and two radii.
The distance around a circle.
Part of a circle bounded by an arc and the segment joining its endpoints.
Fraction of a circle’s circumference.
Vocab should be interactive when possible.

4. What is the length of arc STR?
I do…
What is the length of arc STR?
Write the formula
Day 2
Substitute
Simplify

5. What is the area of sector RST?
I do…
What is the area of sector RST?
Write the formula
Day 2
Substitute
Simplify

6. What is the area of the shaded region?
I do…
Explicit Instruction
What is the area of the shaded region?
Area of Sector
Day 2
Area of Triangle
Area of Sector - Area of Triangle

7. We do…
Sage and Scribe
Day 3 and 4
Low to Moderate DOK
Sage and Scribe

8. We do… Solve the following problem with your shoulder partner.
Day 3 and 4
Moderate/High DOK

9. You do…
1. Find the length of the 24 degree arc of a circle with a radius of 5 cm.
2. Randy has dedicated the shaded part of his circular garden for carrots. How many square feet of carrots can Randy plant?
All three questions.
3. Maria is decorating a 12-inch circular cookie cake with icing. She wants to use blue icing for the top part of the cake. How much icing does she need to cover the shaded region?

10. You do…
Find the length of the 24 degree arc of a circle with a radius of 5 cm.
All three questions.
Answer: 2.09cm

11. You do…
Randy has dedicated the shaded part of his circular garden for carrots. How many square feet of carrots can Randy plant?
All three questions.
Answer: square feet

12. You do…
Maria is decorating a 12-inch circular cookie cake with icing. She wants to use blue icing for the top part of the cake. How much icing does she need to cover the shaded region?
All three questions.
Answer: square inches

13. Post Test
Please complete the post test for this standard on your own. Do the best you can, hopefully you will show improvement over your pretest score.
Day 6
The post test can be found online at The teacher and student logins are the same as FCAT Explorer. If you have access to computers, you may wish to have your students complete this assessment online. Using the paper/pencil copy and a bubble answer sheet from Performance Matters will give you automatically graded assessment and valuable data for immediate use.