Worksheet
Curated OER

Angles and Parallel Lines

For Students 9th - 10th
In this geometry activity, students identify the different angles formed by cut parallel lines. They name the angles and find the measures of each. There are 24 questions.
Worksheet
Curated OER

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...
Worksheet
Curated OER

Challenge: Skills and Applications Lesson 3.3

For Students 9th - 12th
In this angle measures worksheet, students solve 9 short answer problems. Students find values for x and y given two parallel lines cut by a transversal. Students use alternate interior, supplementary, and exterior angles to find x and y.
Lesson Plan
Texas Instruments

Points, Lines, and Planes

For Teachers 9th - 12th Standards
Students solve problems dealing with points, lines and planes. In this geometry lesson, students differentiate between parallel lines and planes. They find the intersection of lines and planes.
Lesson Plan
EngageNY

Making Scale Drawings Using the Parallel Method

For Students 9th - 10th Standards
How many ways can you create a dilation? Many! Individuals strengthen their understanding of dilations by using various methods to create them. The new technique builds on pupils' understanding of the ratio method. Using the ratio,...
Interactive
CK-12 Foundation

Parallel and Perpendicular Lines: Identify Types of Lines

For Students 9th - 11th
Are there only three options: parallel, perpendicular, or intersecting? Scholars move a given line in an interactive to change its orientation with respect to another line. The interactive indicates whether the lines are parallel,...
Interactive
CK-12 Foundation

Parallel and Skew Lines: Parallel or Not?

For Students 6th - 12th Standards
There's nothing askew about an informative resource. Pupils adjust one of two lines in an interactive to determine if the lines are parallel or skew. They answer a set of challenge questions about the lines.
Interactive
CK-12 Foundation

Identify Line Types: Identify Types of Lines

For Students 6th - 12th Standards
If lines aren't parallel or perpendicular, then what are they? An interactive lets users rotate a line to change its orientation with respect to another line. It then indicates whether the lines are parallel, perpendicular, or...
Interactive
CK-12 Foundation

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...
Worksheet
Academic Magnet High School

Parallel Lines Proofs Practice

For Students 8th - 11th Standards
Here is a worksheet that lines up perfectly with the skills needed to finish a geometric proof. Eleven problems are given to see if learners can prove that lines are parallel or angles are congruent. 
Interactive
Curated OER

Angles and Parallel Lines Quiz

For Students 9th - 10th
For this geometry worksheet, students identify missing angles and sides. They identify angles formed by parallel lines cut by a transversal. There are 7 questions with an answer key.
Worksheet
Math Mammoth

Slope; Math Mammoth.com

For Students 8th - 9th
For this math activity, students find the slope of four lines when they are drawn on a coordinate grid. Students are given the slope and draw the line for two lines. They use the slope formula to find slope when given two points on a...
Lesson Plan
Curated OER

Line Construction

For Teachers 9th - 11th
In this geometry worksheet, students construct perpendicular and parallel lines through a given points using a straightedge and a compass. There are 5 questions with an answer key.
Lesson Plan
Curated OER

Perpendicular Lines in the Coordinate Plane

For Teachers 10th - 11th
Students investigate the relationship between perpendicular and parallel lines on a coordinate plane. In this geometry lesson, students differentiate lines based on their slopes.
Lesson Plan
Curated OER

Ruler and Compass Constructions

For Teachers 4th - 5th
Fourth and fifth graders examine how to construct perpendicular lines and to bisect angles using rulers and compasses in this unit of lessons. They design a number of polygons using these methods.
Lesson Plan
Curated OER

Regents Exam Questions GG 10: Solids

For Teachers 10th - 12th
In this solids worksheet, students identify true statements that match a given solid. They identify parallel lines. This two-page worksheet contains four problems. Answers are listed on the last page.
Worksheet
Curated OER

Worksheet 3.5 Simultaneous Equations

For Students 8th - 9th
For this simultaneous equations worksheet, students solve and complete 7 various types of problems. First, they solve graphically the system of equations shown. Then, students find the number of solutions that each pairs of equations...
Workbook
1
1
University of Utah

Geometry: Angles, Triangles, and Distance

For Students 8th Standards
The Pythagorean Theorem is a staple of middle school geometry. Scholars first investigate angle relationships, both in triangles and in parallel lines with a transversal, before proving and applying the Pythagorean Theorem.
Lesson Plan
Illustrative Mathematics

Proportional Relationships, Lines, and Linear Equations

For Teachers 7th - 9th Standards
The resource is a good introduction to what makes a proportional relationship between two lines. Discuss the similarities of both lines and the possibility of intersection. Use this opportunity to list other acceptable forms of each...
Lesson Plan
Curated OER

Special Angles on Parallel Lines

For Teachers 10th
Tenth graders investigate parallel lines and their special angles cut by a transversal. For this geometry lesson, 10th graders identify and find corresponding, alternate interior, and alternate exterior angles formed when parallel lines...
Worksheet
Curated OER

Identify Parallel/Perpendicular/Intersecting Lines

For Students 6th - 8th
In this identifying lines worksheet, students examine given diagrams.  They identify parallel, perpendicular, and intersecting lines.  This two-page worksheet contains 10 problems.  Answers are provided on the last page.
Lesson Plan
Curated OER

Making Parallel Lines

For Teachers 8th - 10th
Students differentiate between parallel and perpendicular lines. In this geometry instructional activity, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
Lesson Plan
Curated OER

Proportional Segments Between Parallel Lines

For Teachers 9th - 12th
Students identify similar triangles.  For this proportional segments lesson, students identify corresponding sides, set up ratios, and find the length of the missing side of a triangle.  They use the parallel/proportionality...
Lesson Plan
Curated OER

Similar Situations

For Teachers 3rd - 6th
Students explore intersecting lines. In this intersecting lines lesson, students investigate shapes consisting of parallel, perpendicular, and similar lines. Students investigate these lines in shapes around them.

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