First we identified the value of pi that we will be using... 3.14 Be sure to type in 3.14 rather than using the pi key when you do your calculations. :)
Circumference is the distance around a circle, like the perimeter of a circle.
Diameter is the distance across a circle, through the center. Twice the length of the radius.
Radius is the distance from the center to the edge of a circle. Half the length of the diameter.
Tonight's homework is worksheet 4-7, all problems. Use the formulas from class and on the back of the sheet to help you solve the problems and remember to use 3.14 for pi and to use a calculator for your work!
Additional notes and information on circumference from Mr. Glosser's Math Goodies.
Explanation and game: KnowledgeBox Math Games (click on the kid to shoot! The longer you hold it the further is goes)
Information and an interactive circle that shows you how values change as a circle increases or decreases in size. From Math Warehouse.
(ignore the area part for now...)
Best of luck on the homework!
-Miss K :)