In this TI Nspire tutorial, the Geometry window is used to construct a triangle and its circumcenter. This video supports the TI-Nspire Clickpad and Touchpad. This Mini-Tutorial Video includes a worksheet. .

In this TI Nspire tutorial, the Geometry window is used to construct and measure an angle. This video supports the TI-Nspire Clickpad and Touchpad. This Mini-Tutorial Video includes a worksheet. .

In this video tutorial angles are defined. Students are shown how to construct and measure using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . . Related Resources To see additional resources on this topic click on the Related Resources tab above.

In this video tutorial intersecting lines and planes are defined. Students are shown how to construct intersecting lines using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . .

In this video tutorial lines, rays, and segments are defined. Students are shown how to construct and label lines, rays, and segments using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . .

In this video tutorial parallel and perpendicular lines are defined. Students are shown how to construct parallel and perpendicular lines using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . .

In this video tutorial planes planes and coplanar points and lines are defined. Students are shown how to construct coplanar, collinear, and non-collinear points using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . .

In this video tutorial points are defined. Students are shown how to construct and label points using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . .

In this video tutorial different types of angles are defined, including acute, right, supplementary, and straight angles. Students are shown how to construct these types of angles using the Desmos geometry tools. The Desmos geometry tools can be found at www.desmos.com/geometry. . .

In this video tutorial different types of angles are defined, including adjacent angles, complementary angles, supplementary angles, and vertical angles. Students are shown how to construct these types of angles using the Desmos geometry tools.

In this TI Nspire tutorial the Geometry window is used to construct the orthocenter of a triangle. This video supports the TI-Nspire Clickpad and Touchpad. This Mini-Tutorial Video includes a worksheet. .

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. The middle column indicates the number of resources available and the third column takes you to page on Media4Math where those resources can be found.

In this activity, learn about the geometry of city planning. We explore why many cities in the US and around the world are laid out in a rectangular grid made up of parallel and perpendicular lines.

In this activity, learn about the geometry of city planning. We explore why many cities in the US and around the world are laid out in a rectangular grid made up of parallel and perpendicular lines.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown. These facsimiles were constructed using the Desmos geometry tools (www.Desmos.com/geometry), although any geometry software can be used.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown. These facsimiles were constructed using the Desmos geometry tools (www.Desmos.com/geometry), although any geometry software can be used.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

This is part of a series of math clip art images that are holiday themed. The illustration is shown and then a facsimile of it using basic geometric shapes is shown.

In this instructional resource, we show the steps in constructing an egg shape. In the process, students learn about using common points of tangency to create smooth curves from two different shapes. This activity can be done with pencil, compass, ruler, and grid paper.