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Circumference and Area of Circles
There are 28 videos in this category and 0 videos in 0 subcategories.
Category Videos
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Not Right For WatchKnowLearn
Ages: 11 - 16
1541 Views:
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In this video, the instructor shows the viewer how to find the area of a circle. One example is modeled using a step by step approach walking the learner through the computation. The instructor uses computer software for instruction. Clear, step-by-...step instruction.
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February 10, 2010 at 08:27 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1017 Views:
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When figuring out the perimeter, or circumference, of a circle, the goal is to find the length around the shape. Use the radius and the diameter to figure out the perimeter of a circle with help from this author and teacher. (01:33)
January 9, 2011 at 06:57 PM
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Not Right For WatchKnowLearn
Ages: 8 - 13
402 Views:
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Identify the diameter, radius and circumference of a circle. Solve problems involving the circumference of a circle.
June 16, 2012 at 11:31 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
1107 Views:
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In this video, using computer software, the instructor discusses how to understand the relationship between the radius, diameter, and the circumference of a circle. (11:05)
February 9, 2010 at 08:52 PM
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Not Right For WatchKnowLearn
Ages: 9 - 15
471 Views:
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Dunk Tank is a math-themed game show created by the producers of Cyberchase and starring Harry from Cyberchase For Real. Using a combination of video and interactive gaming, each program addresses a single topic in the 6th grade math curriculum and s...tudents compete with themselves for high scores. Dunk Tank is an independent learning experience for students to complete in 15-30 minutes, depending on their proficiency, and can also be used to support teacher-led instruction. In this interactive, Harry explains key concepts about circles including: parts of a circle, how to calculate diameter and circumference and pi. Students play Find Tuffy, a mini-game that challenges students to measure and use the radii of circles to find a missing dog; watch a light-hearted video highlighting confusion between a circle’s diameter and its circumference; and answer other questions designed to help them further their understanding of circles. Students can access support using a glossary, defining key math terms, and a menu of short segments to re-watch.
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June 18, 2012 at 09:13 PM
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Not Right For WatchKnowLearn
Ages: 12 - 16
1204 Views:
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Students learn that the circumference of a circle is the distance around the circle, and the formula for the circumference of a circle is 2 times pi times the radius of the circle. Pi is the ratio of the circumference to the radius, which is approxim...ately 22/7 or 3.14. (02:27)
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August 12, 2009 at 05:38 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
996 Views:
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The perimeter of a circle is calculated by measuring the radius and multiplying it by 2 pi. Calculate the perimeter of a circle with a professional math tutor in this video on math skills. There are English captions at the bottom. (01:07)
May 19, 2010 at 08:59 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1100 Views:
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This video shows which is longer--the distance around the mouth of the cup (its circumference) or the height of the cup.This is how to trick your parents at a restaurant: circumference is about three times the diameter of a circle.
February 23, 2009 at 08:32 AM
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Not Right For WatchKnowLearn
Ages: 11 - 16
1526 Views:
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The instructor uses a graphics tablet (using different colors for emphasis) to discuss the area of a circle and how it relates to radius and diameter. Several examples of finding the area and circumference of a circle are modeled using a step by ste...p approach. (06:45)
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February 1, 2010 at 09:37 PM
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Not Right For WatchKnowLearn
Ages: 10 - 16
1144 Views:
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The instructor uses a tablet program to demonstrate how to find the circumference of a circle. The examples include circles where the radius or diameter are given. The instructor also uses a calculator to perform calculations. (06:03)
April 13, 2010 at 08:54 PM
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