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Platonic Realms: The Platonic Solids
This article provides the definition of a function, with links to related material.
University of Oregon
University of Oregon: Greek Science: Early Cosmology
Discusses the evolution of ideas about the cosmos, from the Magic Cosmology of the Neolithic age to the stage of Mythical Cosmology, to the Geometric Cosmology of the ancient Greeks. The third stage advocated a rational approach to...
Cuemath
Cuemath: 3 D Shapes
Introduces the concept of 3D shapes by learning the definition, types, properties, and three dimensions. Check-out the solved examples for better understanding and try your hand at solving a few interactive questions at the end of the page.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Polyhedra Classification
This question and answer site provides a lot of basic information about polyhedra. The five regular polyhedra, "The Platonic Solids," are described.
CK-12 Foundation
Ck 12: Geometry: Polyhedra Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide reviews how to classify polyhedra, Euler's formula, and regular polyhedra.
Cool Math
Coolmath: Coolmath4kids: Polyhedra Gallery
A gallery of complex polyhedra with descriptions and characteristics.
Creative Science Centre
Creative Science Centre: Drawing the Football
This article explores the shape, symmetry and surface structure of a football (or soccer ball, depending on your nationality) to see how this understanding can help one draw these sorts of complex shapes.
Cuemath
Cuemath: Polyhedron
Introduces the concept of polyhedrons by learning the definition, types, and where they are found. Check-out the solved examples for better understanding and try your hand at solving a few interactive questions at the end of the page.
Cuemath
Cuemath: Tetrahedron
A comprehensive guide for learning all about tetrahedrons with definitions, properties, formulas, examples, and practice questions.
Curated OER
Polyhedra: The Five Platonic Solids
A brief site that includes some activities to understand the figures.
University of Texas at Austin
University of Texas: Elementary Math Club: Math Mobile
Learners explore the geometric and topological properties of three-dimensional objects. The lesson plan includes an overview and a lesson toolkit.
Mathigon
Mathigon: Mathematical Treasure Hunt
The mathematical treasure hunt allows students to follow a trail of clues and mathematical problems around the school site; each clue contains a hint to where the next clue is hidden.
Mathigon
Mathigon: Mathematical Treasure Hunt
The mathematical treasure hunt allows students to follow a trail of clues and mathematical problems around the school site; each clue contains a hint to where the next clue is hidden.
University of California
Geometry Junkyard: Dissection Tiling
A great and very informative article about dissection tiling or tessellation.
Wolfram Research
Wolfram Science World: Pythagoras of Samos (Ca. 560 Ca. 480 Bc)
This site from ScienceWorld provides a short, informative description of many of the contributions of Pythagoras to mathematics. Links exist to some of the contributions as well as to additional information.
National Council of Teachers of Mathematics
The Math Forum: Angles of an Octahedron
This question and answer site from The Math Forum with Dr. Math discusses the angle between two adjacent faces of an octahedron. Links are also provided for additional information on related subjects.
National Council of Teachers of Mathematics
The Math Forum: Pictures of Icosahedrons
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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