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- Rating
Students identify and measure the diameter, circumference, and radius of a circle. They discover the approximate value of pi through the relationship between the diameter and circumference. Full Review »
- Grade Range
- 3rd - 5th
- Rating
Students determine the circumference of the balloon (by measuring the diameter and using the equation "circumference = D times pi"), and then use that information to estimate how much yarn they need to go around the balloon x amount of time Full Review »
- Grade Range
- 6th - 7th
- Rating
Students develop an understanding of pi and the relationship between the diameter, radius and circumference. After a lecture/demo, students use construction paper and a compass to solve problems using diameter, radius and circumference. Full Review »
- Grade Range
- 7th
- Rating
Students study circumference and then use the radius measurements of the planets and the sun to find their radiuses and circumferences. Full Review »
- Grade Range
- 8th
- Rating
Students study finding the circumference of a circle. They read "Sir Circumference and the Dragon Pi." In groups, they measure the diameter and circumference of circular objects. Students explore the ratio of circumference over diameter. They solve and explain circumference problems. Full Review »
- Grade Range
- 9th - 10th
- Rating
Students participate in a lesson that covers the concept of finding the circumference of a circle. The teacher covers relevant vocabulary with the students. They work in groups to measure objects and calculate the formula to find the answers. Full Review »
- Grade Range
- 9th
- Rating
Students investigate the finding of the diameter of a circle in order to extend the practice towards finding the circumference. They differentiate between the distance measured across a circle from that of around the perimeter. Full Review »
- Grade Range
- 7th
- Rating
Students solve problems with variables and explore how the problem changes as the variable changes. They complete problems dealing with area, circumference and volume. Students predict what will happen to an equation when the variable changes. Full Review »
- Grade Range
- 6th - 7th
- Rating
Students calculate the area and circumference of a circle as the lesson is presented through an animated Microsoft PowerPoint presentation. They then complete a project to review the previous day's material. Full Review »
- Grade Range
- 5th - 8th
- Rating
Students understand the definitions for perimeter and circumference and know the difference. They then go over sample problems as a class. Students use drill and practice skills to complete activity pages. Full Review »
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