What are Parallel Lines?

Keep young mathematicians on point with this coordinate plane instructional activity. From plotting ordered pairs to identifying the quadrant and coordinates of specific points, this resource covers all the basic skills students...

This activity provides an opportunity for students to build an understanding of parallel and intersecting lines.

Get jamming with lines and sing along to this karaoke that reviews the main types of lines. Your learners can't forget the main properties of lines when they sing the chorus on the karaoke song after the included slide show. The slides...

So you have a transversal line intersecting two parallel lines and you are looking for a value that would make two corresponding angles congruent. You have all the information needed to write an equation to find the value. So write that...

Skew lines? What? By definition, skew lines are lines on different planes that never intersect. Watch this video and get an explanation along with a visual diagram.

When looking at the coordinate pairs for an horizontal line, all the y-values will be equal. Yes, the same, no matter what the x-value is. And the line will never cross the x-axis. Check out this tutorial video to see what that actually...

Skew lines? What? By definition, skew lines are lines on different planes that never intersect. Watch this video and get an explanation along with a visual diagram.

Perpendicular lines intersect to form right angles - four of them to be exact. Vertical angles, congruent angles, 90 degrees each, these are some of the special properties of perpendicular lines. Watch this video to find out a couple...

In this Cyberchase video, Inez and Digit identify the location of the transformatron using their knowledge of parallel and intersecting lines.

By definition, perpendicular lines intersect and form a 90 degree right angle. Want to know how to determine if lines are perpendicular based on two linear equations? Check out their slope values. Are they negative reciprocals? Does...