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1,130 reviewed resources for and perpendicular lines

Lesson Planet

Parallel and Perpendicular Lines

For Students 8th - 11th Standards
Enhance your class's understanding of linear equations by extending their study to parallel and perpendicular lines. Young mathematicians learn the relationship between the slopes of parallel and perpendicular lines. They then use that...
2:22
Lesson Planet

Perpendicular Lines: Lesson

For Students 9th - 11th Standards
Perpendicular lines are all right. Using the definition of perpendicular, the video lesson introduces perpendicular lines.The portion a basic geometry playlist makes connections between the rules of parallel lines and perpendicular lines.
3:29
Lesson Planet

Perpendicular Lines

For Students 7th - 9th
This video demonstrates how to tell algebraically whether lines are perpendicular. Using three different linear equations in different forms, each is rewritten in slope-intercept form, and their slopes are compared to show whether they...
2:15
Lesson Planet

Perpendicular Lines in the Coordinate Planes: Lesson

For Students 7th - 10th Standards
Get the slope right with two easy steps. By placing two perpendicular lines on the coordinate plane, the video determines the relationship of the slopes of the two line lines. The resource is a part of an informative and extensive...
3:10
Lesson Planet

What are Perpendicular Lines?

For Teachers 6th - 10th
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...
Lesson Planet

Parallel and Perpendicular Lines: Unity and Variety

For Teachers 4th
Combine math and art by getting your class create a painting with parallel and perpendicular lines. Youngsters design a picture using multiple lines in a variety of thickness and color. They find parallel and perpendicular lines in real...
Lesson Planet

Classifying Equations of Parallel and Perpendicular Lines

For Teachers 9th - 12th Standards
Parallel parking might be difficult, but finding parallel lines is fairly simple. In this lesson, learners first complete an assessment task involving parallel and perpendicular lines in the coordinate plane. Individuals then take part...
8:02
Lesson Planet

Perpendicular Lines

For Students 8th - 10th Standards
How are the slopes of perpendicular lines related? It turns out they are always opposite reciprocals. A video instructor emphasizes this fact with graphs, examples, and symbolic representations. He follows that instruction with...
Lesson Planet

Proving Slope Criterion for Perpendicular Lines 2

For Students 9th - 12th Standards
What can you say about lines with slopes that are opposite reciprocals? Young mathematicians write a proof about perpendicular lines. They show that if the slopes of lines are opposite reciprocals, then the lines are perpendicular.
Lesson Planet

Writing Equations for Perpendicular Lines

For Students 9th - 12th Standards
Make the right connections between the equations of perpendicular lines. Pupils find the equation of a line perpendicular to another line in the context of finding the equation of a side of a geometric figure. Learners write their...
11:09
Lesson Planet

Parallel and Perpendicular Lines - Part 1

For Students 8th - 11th Standards
Ever ponder parallel and perpendicular lines? An engaging video first investigates how the slopes of lines indicate whether two lines are parallel or perpendicular. It goes on to show how to use the equations of two lines to tell whether...
7:59
Lesson Planet

Graphing Parallel and Perpendicular Lines

For Students 9th - 12th Standards
What do parallel and perpendicular lines have to do with slope? The video highlights the importance of slope when graphing parallel and perpendicular lines. The instructor shows several examples of lines that are parallel and...
Lesson Planet

Constructions for Perpendicular Lines

For Students 9th - 12th Standards
To what degree does the class understand perpendicular lines? Find out with this short and simple worksheet! Geometry scholars get the opportunity to show what they know about drawing lines and including points at different locations...
Lesson Planet

Perpendicular Lines

For Teachers 3rd - 6th
In this perpendicular lines practice worksheet, students find and list examples of perpendicular lines at home, at school, and outside.
Lesson Planet

Parallel and Perpendicular Lines

For Teachers 3rd - 4th
Here is a parallel and perpendicular lines worksheet which has learners respond to 10 questions that require them to identify lines and draw lines.
Lesson Planet

Points, Lines, and Line Segments - Reteach 16.1

For Students 3rd - 5th Standards
For this geometry worksheet, youngsters review a chart at the top of the page that includes the definitions of point, line, line segment, parallel lines, intersecting lines, and perpendicular lines. They apply the definitions as they...
5:03
Lesson Planet

Equation of the Normal Line at a Point

For Students 11th - Higher Ed
Is it normal to find a perpendicular line to the tangent line? The short video provides a problem to find the equation of the normal line to a function. Beginning with an explanation of the normal line, the 27th installment in a 31-part...
4:08
Lesson Planet

How Do You Find the Slope of a Line If You Have a Perpendicular Line?

For Teachers 8th - 11th
What kind of lines have slopes that are the opposite reciprocal of each other? Parallel lines? No. Parabolas? No. Perpendicular lines? Yes! Watch and listen as the instructor demonstrates how to make these determinations about...
EngageNY

Parallel and Perpendicular Lines

For Students 9th - 12th Standards
Use what you know about parallel and perpendicular lines to write equations! Learners take an equation of a line and write an equation of a line that is parallel or perpendicular using slope criteria. They then solve problems to...
Lesson Planet

Definition of Perpendicular Lines

For Students 9th - 12th Standards
Get the right definition of perpendicular lines. The short assessment asks pupils to draw a pair of perpendicular lines and label them. The scholars develop a definition of perpendicular lines that contains the right amount of...
1:40
Lesson Planet

Parallel and Perpendicular Lines

For Students 8th - 10th Standards
Investigate parallel and perpendicular lines in the coordinate plane. Watch as the instructor demonstrates graphing the two types of lines. She highlights the patterns of the slope or steepness of the pairs of lines to make the concept...
Lesson Planet

Parallel and Perpendicular Lines

For Students 9th - 11th Standards
Young geometers get some solid skills practice in evaluating slopes. Beginning with the basics of slope through two points and progressing through properties of parallel and perpendicular lines, the building of skills is gradual and...
Lesson Planet

Lines in the Alphabet Soup - Enrichment 16.2

For Students 4th - 5th
Elementary schoolers examine a bowl of alphabet soup and follow the directions to group the letters. They group letters that contain perpendicular, parallel, and non-perpendicular intersecting lines. They determine which letters have...
Lesson Planet

Comparing Equation of Parallel and Perpendicular Lines: Parallel and Perpendicular Lines

For Students 9th - 11th Standards
It seems perpendicular lines have slopes which follow a specific rule. Scholars use an interactive to investigate this rule by moving a pair of lines on a coordinate plane. They find that perpendicular lines have slopes that are opposite...