# Geometry

Geometry (X)

## Cyberchase | Patterns in Nature

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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 rotational symmetry, before discovering the pattern that may be killing Bianca's plants.

## Comparing Regular and Irregular Areas | Cyberchase

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In this video segment from Cyberchase, the CyberSquad must compare two parcels of land during a land rush. One parcel is an irregular shape and belongs to Hacker. The other parcel is a regular rectangle and belongs to Judge Trudy. By dividing each parcel into squares and triangles, they prove that the two shapes have the same area.

## Arranging Desk: Factors and Multiples | Cyberchase

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In this video segment from Cyberchase, Harry takes on a job as a substitute teacher. After moving all the desks to create space in the middle of the room, Harry displays his juggling talent. When putting the desks back into rows, the class is faced with the task of creating rows with an equal number of desks. In doing this, the students learn about the factors of twenty-four.

## The Curve of the Earth | Genius by Stephen Hawking

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With just a stick in the ground, the Greek mathematician Aristophanes calculated the diameter of the Earth. Today, even with lasers and GPS, his calculations are still considered accurate.

## What is a Math Mess?

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Introducing the Math Mess video series, supplemental lesson plans, and how to integrate them into the classroom. Students will use a variety of math skills to find solutions to these real world applications of mathematics.

## Who are the Northern Arapaho? | Wyoming's Native Americans

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How did the Northern Arapaho come to Wyoming? What are the Arapaho values? Why were Arapaho tribal names changed?

## Who are the Eastern Shoshone? | Wyoming's Native Americans

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How and when did the Eastern Shoshone come to Wyoming? What are the Shoshone values? What are the people of the Eastern Shoshone like?

## Geometry and Classification of 2D Figures: Bianca Busts a Move

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In this video from Cyberchase, Bianca breaks her friend’s tabletop when she’s practicing dance moves in his living room. She uses measurement and geometry to get a new piece of wood that will fit the table exactly. The accompanying classroom activity helps students advance their understanding of perimeter and area by creating their own tabletop designs. This resource is part of the Math at the Core: Middle School Collection.

## Surface Area , Area and Volume: The Big Sleep

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In this video from Cyberchase, Bianca is planning a sleepover birthday party. To figure out the maximum number of friends she can invite, she decides to count how many sleeping bags she can fit over the area of her living room floor. In the accompanying classroom activity, students use the concepts presented in the video to determine the area of multiple shapes. This resource is part of the Math at the Core: Middle School Collection.

## Slicing Three Dimensional Figures

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This animated Math Shorts video helps students understand the two-dimensional figures that result from slicing solid three-dimensional figures. The video demonstrates this using cylinders and right rectangular pyramids as the three-dimensional figures. In the accompanying classroom activity, students create and slice play dough figures and then describe the resulting shapes. This resource is part of the Math at the Core: Middle School Collection.

## Hoop Dream: Use a Diagram to Solve Real-World Math Problems

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In this Cyberchase media gallery, a series of short videos shows how the Cybersquad diagram their own attempts to score a basket in a game called Jimaya Jam in order to win their release from confinement. In the accompanying classroom activity, student pairs play a game of their own called Player Plotting, in which students independently plot points on a coordinate plane and see if the diagrams they create from their points match. This resource is part of the Math at the Core: Middle School Collection.

## The Pythagorean Theorem and 18th Century Cranes

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Discover how math figures into the complex process of reproducing a 18th century human powered construction crane. This video focuses on explaining the way the construction team used the Pythagorean theorem to determine the precise lengths of the struts to build a working crane, taking math out of the classroom and into real world problem solving.

## Areas of Irregular Shapes: Building Sailboats

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Learn how wooden boat builders use a variety of mathematical concepts when custom designing their vessels. This video focuses on how area, volume, and measurements of irregular shapes are used in the engineering process, taking math out of the classroom and into real world problem solving.

## Escaramuza: Symmetry, Reflection, Rotation

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Learn to diagram two-dimensional representations using footage from a real-life equestrian event on a coordinate graph and reflect and rotate that diagram in this video from Center for Asian American Media. This resource is part of the Math at the Core: Middle School Collection.

## Escaramuza: 2D Drawing

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Examine a real-life equestrian event and how the symmetries of the riders’ motions can be reduced to two-dimensional drawings in this video from the Center for Asian American Media. This resource is part of the Math at the Core: Middle School Collection.