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Circumference and Area of Circles

There are 28 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 11 - 16
1817 Views:
Finding the Area of a Circle
From YouTube, produced by Math Made Easy
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-... [more]
February 10, 2010 at 08:27 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1184 Views:
How to Figure Out the Perimeter of a Circle
From eHow, produced by Brian Leaf
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
578 Views:
Circumference Fair (Interactive)
From pbs.org, produced by KAET
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: 9 - 15
1351 Views:
Dunk Tank: Circles (Interactive Game)
From pbslearningmedia.org, produced by Cyberchase
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... [more]
June 18, 2012 at 09:13 PM
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Not Right For WatchKnowLearn
Ages: 12 - 16
1427 Views:
Circumference of a Circle - Math Help
From YouTube, produced by YourTeacher.com
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... [more]
August 12, 2009 at 05:38 PM
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Not Right For WatchKnowLearn
Ages: 11 - 18
1079 Views:
Basic Calculations in Mathematics : Calculating the Perimeter of a Circle
From YouTube, produced by Paul Muller
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
1221 Views:
Circumference Trick
From TeacherTube
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 - 18
1210 Views:
Circles: Radius, Diameter and Circumference - Khan Academy
From YouTube, produced by Sal Khan
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: 11 - 16
1743 Views:
Finding the Area and Circumference of a Circle - Khan Academy
From YouTube, produced by Sal Khan
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... [more]
February 1, 2010 at 09:37 PM
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Not Right For WatchKnowLearn
Ages: 10 - 16
1263 Views:
Finding the Circumference of a Circle
From YouTube, produced by mbrandl11
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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