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Instructional Video
Sophia Learning

Sophia: Different Kinds of Solids

For Students 9th - 10th Standards
Geometric solids are explored in this video lesson. The tutorial defines and provides examples of six popular solids. Students can check their understanding with an assessment. [9:03]
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Handout
Oswego City School District

Regents Exam Prep Center: Polyhedra

For Teachers 9th - 10th Standards
View and learn about five different polyhedra: tetrahedron, octahedron, icosahedron, hexahedron, and dodecahedron. Learn what Euler's Polyhedra Theorem is, and see examples of non-polyhedra as well.
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Instructional Video
Loyola University Chicago

Math Flix: Polyhedra Basics Using Nets

For Students 3rd - 8th Standards
This QuickTime movie provides an opportunity to learn about the basics of Polyhedra using Nets. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
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Unit Plan
Khan Academy

Khan Academy: Nets of Polyhedra

For Students 5th - 7th Standards
Practice matching 2D nets to the 3D shapes the fold up into. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Instructional Video
Loyola University Chicago

Math Flix: Polyhedra Nets 2

For Students 4th - 8th Standards
This QuickTime movie provides an opportunity to identify more Polyhedra using Nets. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
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Instructional Video
Loyola University Chicago

Math Flix: Polyhedra Nets 1

For Students 5th - 8th Standards
This QuickTime movie provides an opportunity to identify Polyhedra using Nets. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
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Handout
University of Georgia

University of Georgia: Inter Math: Edge

For Students 9th - 10th
This site gives a description of edge along with a visual representation. Be sure to use the links to related terms, everyday examples, challenging problems, more information, and the interactive check point located in the left-hand column.
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Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Polyhedra Classification

For Students 9th - 10th Standards
This question and answer site provides a lot of basic information about polyhedra. The five regular polyhedra, "The Platonic Solids," are described.
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Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Naming Polygons and Polyhedra

For Students 9th - 10th
This site gives you the prefixes for naming polygons and polyhedra.
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Activity
Other

Polyhedra: The Five Platonic Solids

For Students 9th - 10th Standards
A brief site that includes some activities to understand the figures.
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Handout
Other

Jim Plank's Origami Page: Making a Truncated Tetrahedron

For Students 9th - 10th
This website provides instructions on how to create a truncated tetrahedron.
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Unit Plan
Instituto Latinoamericano de la Comunicacion Educativa

Red Escolar: Telar Del Pensamiento Matematico

For Students 3rd - 8th
In Spanish. Different mathematical topics are presented with questions and activities.
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Graphic
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Polyhedra

For Students 9th - 10th Standards
Find a quick, concise explanation of what a polyhedra is. Examples are given and clearly explained.
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Interactive
Math Is Fun

Math Is Fun: Spinning Icosahedron

For Students 9th - 10th Standards
Students learn about the terminology and formulas associated with an icosahedron. The learning resource consists of definitions and an interactive spinning icosahedron.
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Activity
University of Cambridge

University of Cambridge: Nrich: A Chain of Eight Polyhedra

For Students 3rd - 8th Standards
Eight different polyhedra are given along with a challenge in this game. Can you arrange them so that their faces match in a chain? A solution is available to check your answers.
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Activity
University of Cambridge

University of Cambridge: Nrich: Building With Solid Shapes

For Students 1st - 2nd Standards
Predict which solid shape constructions would be unstable as shown at this one page website. Solutions are available right at the website.
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Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Cut the Cake

For Students 2nd - 6th Standards
A math challenge where geometry, measurement, and problem solving meet. Explore the properties of three dimensional shapes when you discover how six friends can equally divide a nine inch square chocolate cake. A one page activity from...
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Whiteboard
ClassFlow

Class Flow: Nets

For Teachers 9th - 10th Standards
[Free Registration/Login Required] In this flipchart, students explore geometric sense by interacting with plane diagrams that create a three-dimensional shape.
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Graphic
Curated OER

Personal Site: Pyramids, Dipyramids, and Trapexohedra

For Students 9th - 10th
This site is a personal site that discusses the popular polyhedron, the pyramid. It explains that by joining two pyramids you will get a dipyramid.
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Graphic
Curated OER

Personal Site: Pyramids, Dipyramids, and Trapexohedra

For Students 9th - 10th
This site is a personal site that discusses the popular polyhedron, the pyramid. It explains that by joining two pyramids you will get a dipyramid.
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Activity
NumberNut

Number Nut: Shapes, Symbols, and Colors: 3 D Shapes

For Students 3rd - 8th Standards
This lesson describes three dimensional shapes and provides two interactive practice activities.
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Unit Plan
Wolfram Research

Wolfram Math World: Net

For Students 9th - 10th
Here you can find a definition for the mathmatical term 'net', in addition to a couple of examples.
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Unit Plan
National Council of Teachers of Mathematics

The Math Forum: Pictures of Icosahedrons

For Students 9th - 10th
This site from Dr. Math and the Math Forum provides several links to pictures of icosahedrons. The information is somewhat brief, but worth checking out for a background on the subject.

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