Coordinate Geometry

30 minutes 18 seconds

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Explores the first quadrant of the Cartesian plane in the context of a city street grid, then looks at using coordinates, graphing relationships, and how slope is measured. 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: 30 minutes 18 seconds

Topic: Mathematics
Subtopic: Geometry, Mathematics
Grade/Interest Level: 7 - 9
Standards:

Release Year: 2006
Producer/Distributor: Video Education America
Series: Mathemania

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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.

Closeup of yellow toothpicks arranged in adjacent diamonds on the ground, forming a ladder shape. Caption. To make 4 diamonds you need 13 toothpicks.

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.

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.

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.

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.

Inset of a yellow number line on a green surface. Title card reads, "Summary." Caption. Integers can easily be shown on a number line.

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.

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.

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.

Viewer Comments

Lorna M. (Durango, CO)

January 25th, 2017 at 11:01 AM

This is a great video to show any students, but especially for special needs students to understand the concept of coordinates in Geometry.
Lorna M. (Durango, CO)

January 4th, 2017 at 11:13 AM

This is a great visual on teaching students about the coordinates.

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