Illustrative Mathematics
Illustrative Mathematics: G Mg, G Gmd Global Positioning System Ii
Satellites communicate with a GPS device and establish the distance between them and their locations. The set of points at a fixed distance from a satellite form a sphere so when the GPS receives its distance from a given satellite, this...
Other
Porcelai Nia: Tessela
Tessellated geometric patterns in art are discussed and illustrated in this resource.
National Council of Teachers of Mathematics
Nctm: Illuminations: Geometric Solids
An interactive game to find number of edges, surfaces and vertices of different geometric shapes.
Mathigon
Mathigon: Geometry: Polygons and Polyhedra: More on Polyhedra
This lesson focuses on polyhedra other than the platonic solids; these include an Archimedean solid, a polyhedron made up of different kinds of regular polygons, that looks the same from every direction. There are 13 different...
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.
CK-12 Foundation
Ck 12: Geometry: Representing Solids Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide gives an overview of isometric view, orthographic view, cross-section, and nets.
CPALMS
Cpalms: Size It Up
[Free Registration/Login Required] This is a formative assessment task where students are asked to use geometric solids to model each of four tent shapes on a instructional activity and use mathematical language to describe them. Samples...
Khan Academy
Khan Academy: Subdivision in 3 D
In this seven-problem quiz/practice, students understand how subdivision works with an object in three dimensions.
National Council of Teachers of Mathematics
Nctm: Illuminations: Simson Line
This applet allows for the construction and exploration of the Simson Line.
Math Open Reference
Math Open Reference: Prism
A complete reference guide to prisms. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Shodor Education Foundation
Shodor Interactivate: Cross Section Flyer
Explore cross sections of different geometric solids: cone, double cone, cylinder, pyramid, and prism. Manipulate the cross section with slider bars, and see how the graphical representation changes.
Math Open Reference
Math Open Reference: Surface Area of a Cube
A complete reference guide to the surface area of a cube. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Volume of a Triangular Prism
A complete reference guide to finding the volume of a triangle prism. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Geometry Help
Geometry Help: Area of Geometric Shapes
Explains the basic concept of the area of geometric shapes with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Shodor Education Foundation
Shodor Interactivate: Cross Sections
This lesson utilizes the concepts of cross-sections of three-dimensional figures to demonstrate the derivation of two-dimensional shapes.
Khan Academy
Khan Academy: Cross Sections of 3 D Objects
Practice your knowledge of all possible cross-sections of common 3D objects.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.5 Modeling in Three Dimensions
Explore connections between a 2-dimensional net and a 3-dimensional box. Later in this section, use equations with variables to solve real world problems that use 2 and 3-dimensional objects.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.4 Connections Between Two and Three Dimensions
Cross-sections are one way that two-dimensional objects are connected to three-dimensional objects.
CK-12 Foundation
Ck 12: Interactive Geometry: 9.3 Spheres
Learn how the components and properties of a sphere are analogous to those of a circle.
CK-12 Foundation
Ck 12: Interactive Geometry: 1.12 Cross Sections of Solids
See how the cross-sections of solids relate to their shapes.
CK-12 Foundation
Ck 12: Interactive Geometry: 1.11 Surface Area and Nets
Explore surface areas and nets with 2D and 3D shapes.
Quia
Ixl Learning: Cross Sections
Brush up on your math skills relating to cross-sections then try some practice problems to test your understanding.
Wolfram Research
Wolfram Math World: Space Filling Polyhedron
This MathWorld site shows pictures of polyhedra which can fill space. A discussion of these figures follows.