Click on the appropriate word to view a small graphic depicting the term, or click to the crossword puzzle version of thisinteractive glossary.

Given a figure and a definition of a translation, draw the image. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

Given a figure on the coordinate plane and the definition of a rotation about an arbitrary point, draw the image of that rotation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video,...

Given a figure on the coordinate plane and the definition of a rotation about the origin, draw the image of that rotation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...

Given a figure and a definition of a reflection, draw the image. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.

In this lesson, students use movement and the creation of human structures to help them understand angles, plane shapes, and geometric solids.

This site provides an in-depth definition of a two-dimensional figure and a three-dimensional figure. Related terms include arcs, vertices, polygon, and many more.

In this lesson, students will create a colored pencil drawing utilizing symmetry and forms characteristic of Northwest Coast art and write a critique of their work. Media resources and teacher materials are included.

Play a matching game with different representations of equivalent items.

You have been hired by the owner of a local ice cream parlor to assist in his company's new venture. The company will soon sell its ice cream cones in the freezer section of local grocery stores. The manufacturing process requires that...

Students use rectangles to explore patterns. Once they understand the concept, students can create their own patterns for others to explore.

In Spanish. Interactive activities online on various geometric and trigonometric concepts such as area, perimeter, secants, tangents, etc. A terrific resource for students. Site is organized acoording to shape. (triangle, quadrilaterals,...

Excellent interactive challenge working with cube nets to stack them in a specific order. Manipulate the cubes online to solve the problem.

In this lesson on geometry and polygons, you use origami to use various polygons to make a heart. Included in this PDF lesson is vocabulary worksheet with answers provided.

This site gives some examples of line reflection transformations. Includes coordinate graphs to show reflections of lines and shapes.

In this video segment from Cyberchase, performers from STOMP! illustrate patterns using inventive and exciting rhythmic melodies.

For this lesson, the learners will create geometric reflections. This is a hands on activity where the student will be able to conceptualize how geometric shapes are reflected across the x and y axis of a coordinate graph. This lesson...

[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 worksheet and use mathematical language to describe them. Samples of student...

[Free Registration/Login may be required to access all resource tools.] This concept introduces geometric rotations.

The class has been contracted to work for a box factory. They are to make cube shaped jewelry boxes. Students determine how many different nets are possible and then analyze the resulting cubes. This real-world situation helps to develop...

Given an unlimited number of a specific type of equilateral, isosceles, and right triangles create as many tetrahedra as are possible. Includes printout.

After successive folds of a piece of origami paper, a student must explain why the shape made is a regular octagon. Aligns with G-CO.A.3 and G-CO.D.12.

In this enrichment game, the nets for nine solids are displayed. The twist is that each net has been cut into two pieces. The challenge is find the pieces that go together.

This task provides a geometric context for working with ratios and algebraic equations. Students will create and then solve an algebraic equation describing a remarkable shape, the silver rectangle. Aligns with A-CED.A.2.