1. Bellwork What strategy should be used to find a fraction between 7/8 and 9/10?

2. Daily Activities TIMED SKILL DRILLS HOMEWORK REVIEW

3. MS Framework Ob j: 4ac 8 th Grade Pre-Algebra By: Mrs. Davis

4. What is circumference and how is it used in the real world? Definition:The distance AROUND the outside edge of the CIRCLE. Relate: Perimeter

5. Confident Teen Volunteer Needed!

6. Math in the Real World Walking Trail – Reading Problem

7. Math in the Real World Ferris Wheel – Reading Problem Who was the biggest CHICKEN??? #Coach Stiles

8. Math in the Real World Horse Lunging Arena – Reading Problem Lunging is a method used to exercise a horse or to teach him something new without a rider on his back. A rope is attached to the horse’s harness. The rider then stands in the center of a ring and directs the horse to move in a circular rotation. A jumping horse lunging around an arena 60 feet in diameter travels what distance in 1 rotation?

9. Radius: Is the distance from the center of the circle to the outer edge. 3 in Words you need to know when dealing with circles. Diameter: Is the distance from one side of the circle to the other. Circles 14 m Pi ( ): The number used when working with circles. 3.14

10. Finding the Circumference of a Circle. Circumference is the distance around the outer edge of a circle. To find the circumference of a circle use the formula: C = ________ 14 m3 in Diameter (d) Radius (r) C = ____ x ____ x ____ C = ______________ radius = ______ C = ____ x ____ x ____ C = ______________

11. Guided Practice C = 2 r C = ____ x ____ x ____ C = ______________ Circumference Key Words  Outer Edge  Around  Rotation  Revolution

12. You Try C = 2 r C = ____ x ____ x ____ C = ______________ Circumference Key Words  Outer Edge  Around  Rotation  Revolution

13. You Try C = 2 r C = ____ x ____ x ____ C = ______________

14. You Try What key words tell you that we are dealing with circumference? C = ____ x ____ x ____ C = ______________ C = 2 r

15. Distance around the outer edge of a shape. PerimeterCircumference Pertains to polygons. Pertains to circles. Calculate by adding the sides together. 9 m 6.5 m Perimeter Vs. Circumference 6.5 m Calculate using formulas. C = _________  What is the diameter of a circle? What is the radius?  What is the formula for finding circumference?  What number do we use for ?  How do you find the radius if only the diameter is given? 9 cm

16. Closure What is the BIG CONNECTION between perimeter and circumference?