Curated OER
Semester 1 Review for Geometry final
In this geometry instructional activity, 10th graders solve problems that are based on the topics covered in a first semester geometry class, including, linear equations and the equations of parallel and perpendicular lines, the logic of...
Curated OER
Slope of Parallel and Perpendicular Lines
For this parallel and perpendicular lines worksheet, students determine the slope of a line. They calculate the slope of a line parallel and perpendicular to a given line. This two-page worksheet contains 22 problems. Answers are...
Curated OER
Parallel and Perpendicular Lines
In this parallel and perpendicular lines worksheet, students find the slope of a line. They identify the slope of a line parallel to another line or find the slope of a line that is perpendicular to a given line. This one-page...
Curated OER
Parallel and Perpendicular Lines
In this parallel and perpendicular lines worksheet, students identify the slope of a line that is either parallel to a line or perpendicular to the given line. This one-page worksheet contains ten linear problems.
EngageNY
Criterion for Perpendicularity
The Pythagorean Theorem is a geometry pupil's best friend! Learners explain the equation a1b1 + a2b2 = 0 for perpendicular segments using the Pythagorean Theorem. They are able to identify perpendicular segments using their endpoints and...
Curated OER
Lines in the Plane
Young scholars differentiate between parallel and perpendicular lines. In this algebra lesson, students graph linear equations using the slope intercept form. They classify lines based on their slopes.
Curated OER
Geometry: Parallel and Perpendicular Lines
This basic handout would be good for skills practice or a review of parallel and perpendicular lines. Review the definitions, then practice writing equations of lines that pass through a specific point and are either parallel or...
Curated OER
Algebra I - Worksheet G12: Graphing Lines
In this graphing lines worksheet, students graph 28 lines given various data. Students graph lines given two points, a point and slope, and a line perpendicular or parallel to a point.
Curated OER
Chapter 2.3 - Slope
In this slope worksheet, students answer 16 slope intercept questions. They determine slopes based on equations, graphs and coordinates. Students also find the equations of lines parallel and perpendicular to a given line and that goes...
Curated OER
Parallel, Perpendicular, or Neither
Study the difference between parallel and perpendicular lines with a set of study cards. After filling in notes (found on the second page), kids can quiz each other on the characteristics of each line, including a section that represents...
Radford University
Google Earth Trip
Travel the world instantly—and learn about math along the way. Using pictures of famous places taken from Google Earth, scholars look for parallel and perpendicular lines based on slope and angle measurements. They also calculate...
Mathematics Vision Project
Transformations and Symmetry
Flip, turn, and slide about the coordinate plane. Pupils define the rigid motions and experiment with them before determining the relationships of the slopes of parallel and perpendicular lines. The sixth unit in a nine-part series...
Curated OER
Parallel, Perpendicular and Intersecting Lines
In this parallel, perpendicular and intersecting lines worksheet, students analyze the slopes of given lines and determine if the lines are parallel, perpendicular or intersecting. This five-page worksheet contains approximately 25...
EngageNY
Equations for Lines Using Normal Segments
Describing a line using an algebraic equation is an essential skill in mathematics. The previous instructional activity in the series challenged learners to determine if segments are perpendicular with a formula. Now they use the formula...
Curated OER
Is the Slope Legal?
Learners define parallel and perpendicular lines. For this algebra lesson, students relate the concept of parallel and perpendicular lines to the real world. They classify the lines based on their slopes.
Curated OER
Identifying Linear Functions from Graphs
Keep your mathematicians engaged using this group linear functions activity. Each of ten groups receives two graphs with both an image and equation, as well as a "who has" phrase to call out the next graph. Scholars stay on their toes as...
EngageNY
Equations for Tangent Lines to Circles
Don't go off on a tangent while writing equations of tangent lines! Scholars determine the equations for tangent lines to circles. They attempt both concrete and abstract examples, such as a tangent line to the unit circle through (p, 0).
Curated OER
An Exploration of the Slope of a Line
Students define the slope of a line. In this algebra lesson plan, students differentiate between parallel and perpendicular lines using their slopes. They rewrite equations in slope intercept form and explain the meaning of the slope.
Curated OER
Draw the Line
In this equations of a line activity, 9th graders solve 10 different problems related to solving for the equation of a line as stated. First, they draw the line that is described in each statement. Then, students determine the line that...
EngageNY
Designing a Search Robot to Find a Beacon
Build right angles using coordinate geometry! Pupils explore the concept of slope related to perpendicular lines by examining 90-degree rotations of right triangles. Learners determine the slope of the hypotenuse becomes the opposite...
Mathematics Vision Project
Connecting Algebra and Geometry
Connect algebra and geometry on the coordinate plane. The eighth unit in a nine-part integrated course has pupils develop the distance formula from the Pythagorean Theorem. Scholars prove geometric theorems using coordinates including...
Mathematics Vision Project
Module 6: Connecting Algebra and Geometry
A geometry module connects algebraic reasoning to geometry. It challenges scholars to investigate the slope criteria for parallel and perpendicular lines, prove theorems involving coordinate geometry, and write equations for circles and...
Curated OER
Slopes Puzzle
In this slopes puzzle worksheet, students solve and complete 16 different problems that include determining various slopes of equations. First, they cut apart each of the pieces shown. Then, students use the slopes of each linear...
Curated OER
Linear Functions
In this linear function worksheet, students examine graphs and determine the slope, the y-intercept and the equation of a line. They identify parallel and perpendicular lines. This two-page worksheet contains 3 multi-step problems.