Line Segments Teacher Resources

This activity illustrates the Triangle Inequality and the conditions necessary for a triangle to be formed from three straight lines.

This site provides definitions of different types of polygons and figures.

This lesson explores the characteristics of various types of polygons. It includes two PowerPoint presentations that test students' understanding by grouping polygons in the correct categories.

Use the Desmos transformation tools (link at top of page) to complete this scavenger hunt. There are three levels to choose from and solutions are included.

Learn about the diagonals of a rectangle with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.

Learn about congruent with this handy reference guide. Provides a detailed definition and examples that enhance further explanation. Includes links to related topics.

A complete reference guide to diagonals of a square. It provides definitions, examples, and interactive activities that enhance further explanation. Includes links to related topics.

[Free Registration/Login Required] This flipchart reviews segments, parallel and perpendicular lines and then introduces polygons including quadrilaterals. It has many real world examples of shapes and includes Activote assessment.

This lesson defines midpoint and segment bisector, and provides examples that demonstrate how to distinguish between the two. It is 6 of 10 in the series titled "Midpoint vs. Segment Bisector."

This lesson defines midpoint and segment bisector, and provides examples that demonstrate how to distinguish between the two. It is 9 of 10 in the series titled "Midpoint vs. Segment Bisector."

This lesson defines midpoint and segment bisector, and provides examples that demonstrate how to distinguish between the two. It is 1 of 10 in the series titled "Midpoint vs. Segment Bisector."

This lesson defines midpoint and segment bisector, and provides examples that demonstrate how to distinguish between the two. It is 7 of 10 in the series titled "Midpoint vs. Segment Bisector."

This lesson defines midpoint and segment bisector, and provides examples that demonstrate how to distinguish between the two. It is 10 of 10 in the series titled "Midpoint vs. Segment Bisector."

Do you need practice remembering or learning different geometry vocabulary words and definitions? The flash cards at this web site are for you! There is a link to a list of terms with definitions you can click if you want to see if you...

Do you need practice remembering or learning different geometry vocabulary words and definitions? This concentration game is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if...

Do you need practice remembering or learning different geometry vocabulary words and definitions? This word search is the web site for you! There is a link to a list of terms with definitions you can click if you want to see if you are...

Math and geography are the focus of this internet investigation. Learners must plan a road trip to several cities and plot the elevations of those cities using a line graph. Acrobat Reader required.

A written proof that shows how the midpoint formula works.

Rolle's theorem and when it can be applied to a function are discussed in this lesson. It is 3 of 6 in the series titled "Rolle's Theorem."

Rolle's theorem and when it can be applied to a function are discussed in this lesson. It is 5 of 6 in the series titled "Rolle's Theorem."

Rolle's theorem and when it can be applied to a function are discussed in this lesson. It is 6 of 6 in the series titled "Rolle's Theorem."

This QuickTime movie provides an opportunity to develop the basic geometric term, similar, by using a ratio to see if figures are similar. As you watch and listen to the teacher and student interact it helps clarify the thinking behind...

Learn about an edge with this helpful reference tool. Provides a detailed definition and an example that enhance further explanation.

Learn about the Triangle Inequality Theorem Converse with this helpful reference tool. Provides a definition and interactive that enhance further explanation. Includes links to related topics.