Parallel Lines Teacher Resources

In this lesson, students will learn important definitions about angles relationships an use those facts to solve equations.

This interactive instructional activity investigates quadrilaterals and provides students with an opportunity to practice describing their attributes.

[Free Registration/Login Required] Students explore the concept of alternate interior angles by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more...

Given algebraic expressions that represent a pair of two vertical angles, form and solve an equation. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Learn about transversals with this handy reference guide. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.

This step-by-step demonstration teaches students to construct a line parallel to another through a given point.

Twenty-two problems present a practice finding the slope of a line. The solutions are only available with a paid subscription.

Depending on whether and how the linear equations in a system touch each other, there will be a different number of solutions to the system. There can be one solution, no solution, and even infinite solution. Watch this video for...

The head was carved in the style of the Eleventh Dynasty with small slanting eyes and horizontal eyebrows, a straight mouth surrounded by an incised line, and the alternate dark and light bands of the royal head cloth carved in radiating...

A tablet of dark brown clay, much injured, dating from the 8th or 7th century B.C. The two large concentric circles indicate the ocean, or, as it is called in the cuneiform writing between the circles, the 'Briny Flood.' Beyond the ocean...

Learn the properties of parallel and perpendicular lines so that you can easily identify them. [2:08]

Brush up on your math skills relating to parallel and perpendicular lines then try some practice problems to test your understanding.

This lesson explains what are parallel and perpendicular lines and includes varied exercises and a video that shows how to draw a perpendicular line and a rectangle using a protractor or a triangular ruler.

[Free Registration/Login Required] This flipchart is designed to review differences between parallel and perpendicular while providing students ample opportunities to locate examples of each. A United Streaming video is included as well.

Students learn how to construct parallel and perpendicular lines. The resource consists of video demonstrations.

This lesson [5:22] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 6 of 6 in the series titled "Corresponding Angles Converse."

This lesson will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 1 of 6 in the series titled "Corresponding Angles Converse." [2:37]

This lesson [3:41] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 3 of 6 in the series titled "Corresponding Angles Converse."

This lesson [3:57] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 4 of 6 in the series titled "Corresponding Angles Converse."

This lesson [3:29] will demonstrate how to prove lines parallel with the converse of the corresponding angles postulate. It is 5 of 6 in the series titled "Corresponding Angles Converse."

This video lesson demonstrates how to determine if two lines are parallel by using the converse of the consecutive-exterior angles theorem. Students can check their understanding with an assessment.

This video lesson demonstrates how to determine if two lines are parallel by using the converse of the consecutive-exterior angles theorem. Students can check their understanding with an assessment.

[Free Registration/Login Required] This flipchart explores the mathematical relationships between lines using algebra.

Do you need practice remembering or learning different geometry vocabulary words and definitions? This matching 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 you are...