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Geometric Transformations

24 minutes 9 seconds
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Irregular geometric object reflected in a glass building is outlined in yellow and superimposed in quadrant 2 of an X, Y axis. Caption. Let's check the coordinates on the reflected image.

Uses everyday situations and examples to explain the major types of geometric transformations: translations, rotations, reflections, and dilations. Accessibility options on the DVD are: (1) expanded description, (2) English subtitles in a black box, (3) subtitled description. Part of the "Mathemania" series.

Media Details

Runtime: 24 minutes 9 seconds

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Person stands next to a post in a park. Superimposed lines create a right triangle with the post and a point a few feet from the person. A second right triangle is between the person and the same point. Inset depicts a hand drawing the triangles with labeled sides. Caption. The post's height is H.
Mathemania
Season 3 / Ep 1
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Grade Level: 7 - 9
Closeup of yellow toothpicks arranged in adjacent diamonds on the ground, forming a ladder shape. Caption. To make 4 diamonds you need 13 toothpicks.
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Grade Level: 7 - 9
Smiling girl stands behind a wood plank while holding up 3 sticks of wood at an angle to form a rhombus shape. Caption. Then push the square over a bit to make a rhombus.
Mathemania
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2 parallel lines outline grooves between wood planks and are intersected by a diagonal line. The 2 angles formed are labeled, "130 degrees" and "50 degrees." Title card reads, "Summary. Angle relationships." Caption. But they add to 180 degrees.
Mathemania
Season 3 / Ep 4
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Grade Level: 7 - 9
Irregular geometric object reflected in a glass building is outlined in yellow and superimposed in quadrant 2 of an X, Y axis. Caption. Let's check the coordinates on the reflected image.
Mathemania
Season 3 / Ep 5
24 minutes 9 seconds
Grade Level: 7 - 9
Woman sits at a table while holding an object and looking down at red paper on a green cutting mat. Caption. For some of the shapes.
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Inset of a yellow number line on a green surface. Title card reads, "Summary." Caption. Integers can easily be shown on a number line.
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Season 4 / Ep 1
27 minutes 12 seconds
Grade Level: 7 - 9
Young woman holds up and examines a shirt on a hanger in a store setting. Caption. So 30 percent off a T-shirt that normally sells for 36 dollars.
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Line chart with Y axis labeled, "Distribution, meters," and X axis labeled, "Time in seconds." A line begins from 0,0 and rises steadily to points A at 20, 100, B at 30, 100 and C at 60, 180. Caption. I covered 90 meters in 30 seconds.
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Season 4 / Ep 3
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Grade Level: 7 - 9
Equation written of black on a white background as follows, 1 over 100 equals 1 over 10 squared equals 10 to the negative power of 2. Caption. Is the same as 10 to the power of negative 2.
Mathemania
Season 4 / Ep 4
34 minutes 4 seconds
Grade Level: 7 - 9

Viewer Comments

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    SUSIE V. (Flushing, MI)
    May 11th, 2016 at 05:21 AM

    If you want an easy way to introduce Translation, Reflection, and Rotation, I highly recommend this DVD. Real-life events are depicted so easily. For example, one teen went down a slide and the Coordinate Plane was placed on the screen with a point on her ear to demonstrate translation (or slide). Even my students thought it was really cool! This DVD was so helpful. Thank you DCMP!!

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