In this program we explore the properties of circles. We do this in the context of two real-world applications.

We visit Chaco Canyon in New Mexico to explore the circular kivas and in the process discover how circular buildings h

The Roman Coliseum is a large elliptical structure. Yet, the Romans likely used circular arcs to build it.

The Roman Pantheon is a domed structure that shows a keen awareness of the position of the sun throughout the yea

In this program we explore the properties of polygons. We do this in the context of two real-world applications.

The Pentagon is one of the most famous polygon-shaped buildings in the world.

In the ancient city of Marrakesh polygons are on display.

The Petronas Towers in Indonesia provide an opportunity to explore the composite shapes used in the design of the towers.

This cheat sheet gathers together the resources on the topic of parallel and perpendicular lines. See the descriptions and links below. Each link takes you to a collection of resources around that topic.

This is a collection of definitions related to circles and related topics.

This is part of a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is part of a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is part of a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This is a collection of definitions related to circles and related topics.

This collection of clip art images includes image sequences for key topics in geometry.

This collection of clip art images includes image sequences for key topics in geometry.

This collection of clip art images includes image sequences for key topics in geometry.

This collection of clip art images includes image sequences for key topics in geometry. This includes points, lines, planes, angles, triangles, quadrilaterals, and polygons.

This collection of clip art images includes image sequences for key topics in geometry. This includes points, lines, planes, angles, triangles, quadrilaterals, and polygons.

This collection of clip art images includes image sequences for key topics in geometry.

This collection of clip art images includes image sequences for key topics in geometry.