2.G.A.3

Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.

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Ages: 8 - 13
5455 Views:
Learning Fractions
From eHow, produced by Jimmy Chang
This short video is from Jimmy Chang, who has a master's degree in math and has been a math teacher at St. Pete College for more than ten years. For upper elementary grades.  In this video Jimmy explains what fractions are and what their purpose is.
Found by teresahopson in 2.G.A.3
July 17, 2009 at 10:32 AM
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Not Right For WatchKnowLearn
Ages: 7 - 14
2835 Views:
Circles: Radius, Diameter, and Pi
From YouTube, produced by Learning Upgrade
The video is in song form and discusses the circumference, radius, pi and more.  The video shows the formulas for finding circumference and area, and also explains the definition of Pi. (01:51)
Found by Barb in 2.G.A.3
November 13, 2009 at 08:02 PM
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Not Right For WatchKnowLearn
Ages: 7 - 14
16387 Views:
Introduction to Fractions Song
From YouTube, produced by Learning Upgrade
This is a song that uses a pie to introduce fractions. The video includes: proper, improper, and mixed fractions. It's a fun video to watch and explains fractions in easy terms. It also includes imagery and text of key terms (01:35)
Found by Anonymous in 2.G.A.3
April 1, 2009 at 05:25 PM
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Not Right For WatchKnowLearn
Ages: 3 - 7
5844 Views:
Fractions- Equal Parts
From eduplace.com, produced by Houghton Mifflin
Using shapes, students find equal parts.  Equal parts are the same size.
Found by tinag1974 in 2.G.A.3
May 14, 2010 at 01:37 PM
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Not Right For WatchKnowLearn
Ages: 3 - 10
3803 Views:
Patterns in Plants
From teachersdomain.org, produced by PBS
In this video segment from Cyberchase, Bianca wants to learn why her plants keep dying, so she transports them in a carriage to the New York Botanical Garden. A helpful plant expert shows her some patterns in plants, including bilateral and rotationa... [more]
Found by begamatt in 2.G.A.3
September 26, 2010 at 09:37 PM
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Not Right For WatchKnowLearn
Ages: 5 - 10
3308 Views:
Numeracy Video - Fruit Fractions
From YouTube, produced by Anna Gubbin and Sarah Lanyon
This video has been created for educational purposes and focuses on numeracy in the real world. This video could be used to introduce the concept of Fractions in the early years.  The students use fruit to learn about fractions and make a fruit salad... [more]
Found by MissAnnaG14 in 2.G.A.3
September 14, 2011 at 11:22 PM
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Not Right For WatchKnowLearn
Ages: 8 - 14
2610 Views:
Numerators and Denominators in a Fraction - Khan Academy
From YouTube, produced by Salman Khan
This video helps you identify the numberator and denominator in a fraction.  It includes a black screen where the instructor, in his conversational tone, uses it as a 'chalkboard.' Different colors and pictures are used for clarification. (02:31)
Found by begamatt in 2.G.A.3
February 6, 2011 at 07:21 PM
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Not Right For WatchKnowLearn
Ages: 8 - 14
2420 Views:
Identifying Fraction Parts -- Khan Academy
From YouTube, produced by Sal Khan
This video helps identify the different parts of a fraction.  Story problems and pictures are used to help reinforce the concept.  The instructor, in his conversational tone, uses a black screen as a 'chalkboard.' Different colors and pictures are us... [more]
Found by begamatt in 2.G.A.3
February 6, 2011 at 07:25 PM
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Not Right For WatchKnowLearn
Ages: 8 - 11
2238 Views:
Rotational Symmetry
From YouTube, produced by YouTube
This video contains a lesson a college student taught to a "pretend" class.  In the video, the teacher defines rotational symmetry.  She then shows examples of shapes with rotational symmetry and demonstrates how to determine whether or not objects h... [more]
August 27, 2011 at 10:27 AM
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Not Right For WatchKnowLearn
Ages: 11 - 18
1785 Views:
Build a Hexagon
From YouTube
This is a video showing an elementary classroom activity on how many ways you can build a hexagon. (01:22)
Found by grazianione in 2.G.A.3
January 26, 2010 at 07:31 PM
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