Lesson Plan
Curated OER

Exploring the Slopes of Parallel and Perpendicular Lines.

For Teachers 8th - 10th
Students find the slopes for perpendicular and parallel lines. In this geometry lesson, students differentiate between parallel and perpendicular lines. They use Cabri software to create lines to compare.
Worksheet
Curated OER

Parallels and Meridians

For Students 4th - 5th
In this parallels and meridians worksheet, students read about parallels and meridians and answer questions about lines of latitude and longitude. Students complete 8 problems.
Worksheet
Curated OER

Globe Lesson 7 - Parallels and Meridians - Grade 6+

For Students 6th - 8th
In this parallels and meridians learning exercise, learners read a 2-paragraph review of parallels and meridians and respond to 7 short answer questions.
Worksheet
Curated OER

Lines- Parallel, Perpendicular, or Neither

For Students 8th - 9th
In this slopes worksheet, students determine if the given twenty slope pair are from lines that are parallel, perpendicular, or neither.  The solutions are provided.
Worksheet
Curated OER

Parallel, Intersecting, and Perpendicular Lines

For Students 10th
In this geometry lines worksheet, 10th graders solve 9 different problems related to various types of lines found in geometry. They classify each pair of lines shown as either parallel, intersecting, or perpendicular lines.
Worksheet
Curated OER

Classifying Angles

For Students 10th
In this classifying angles worksheet, 10th graders solve and complete 35 various types of problems. First, they match each type of angle with its correct description. Then, students determine whether the given lines or planes are...
Worksheet
Curated OER

Congruent Chords, Parallel chords and Perpendicular Chords

For Students 10th - 11th
In this geometry worksheet, students solve problems about congruent, parallel, and perpendicular chords and bisectors.  There are 9 problems with an answer key.
Worksheet
Curated OER

Linear Equations

For Students 9th - 10th
In this algebra learning exercise, learners solve and graph linear equations. They differentiate between parallel and perpendicular lines. There are 35 questions about graphing.
Worksheet
Curated OER

Parallel and Perpendicular Letters

For Students 4th - 5th
In this parallel and perpendicular worksheet, students complete 4 problems, identify parallel and perpendicular line segments and completing an 'extend it' question.
Lesson Plan
Curated OER

What's The Idea?

For Teachers 6th
Sixth graders explore line segments, rays, parallel, perpendicular and intersecting lines. The teacher discusses, with the class, real life items that represent each geometric idea studied. They use cotton balls, strings and popsicle...
Interactive
Curated OER

Pairs of Lines Multiple Choice

For Students 9th - 10th
In this algebra worksheet, students identify the slope and y intercept of lines. They compare the slope of perpendicular and parallel lines and find the missing slope. There are 6 questions with an answer key.
Worksheet
Curated OER

Chapter 4.5 Geometry Practice Problems

For Students 10th - 11th
In this geometry practice problems worksheet, students write geometric proofs to prove the validity of given circumstances. Students prove parallel lines, perpendicular lines, and similar angles. This four-page worksheet contains eight...
Lesson Plan
EngageNY

Informal Proofs of Properties of Dilations

For Teachers 8th Standards
Challenge the class to prove that the dilation properties always hold. The lesson develops an informal proof of the properties of dilations through a discussion. Two of the proofs are verified with each class member performing the...
Lesson Plan
Texas Education Agency (TEA)

Architectural Rendering

For Students 9th - 12th
Explore different methods of architectural rendering and technical drawing. Pupils learn about cross hatching, parallel line rendering, random line rendering, rubbing, shading, and stippling in the second instructional activity of the...
Lesson Plan
EngageNY

How Do Dilations Map Angles?

For Students 9th - 10th Standards
The key to understanding is making connections. Scholars explore angle dilations using properties of parallel lines. At completion, pupils prove that angles of a dilation preserve their original measure. 
Handout
El Paso Community College

Geometry Definitions

For Students 7th - 9th Standards
Geometry is full of shapes, figures, and corresponding things here and there. The guide shares all of the key pieces of geometric information in a nicely color-coded and labeled sheet. 
Worksheet
Curated OER

Exploring Linear Equations: Student Worksheet

For Students 5th - 6th
An activity around linear equations, slope, and intercept is here for you. In it, young mathematicians engage in a whole-class activity while the teacher uses the overhead projector graphing calculator. This activity also focuses on...
Lesson Plan
Curated OER

Investigation-Looking at Polygons

For Teachers 8th
Eighth graders plot points and investigate polygons. They locate a point, using ordered pairs of integers on the coordinate plane. Students compare geometric measurements and computations on coordinate axes as they are applied to...
Lesson Plan
Curated OER

Angle Pairs

For Teachers 8th
Eighth graders are introduced to the vocabulary associated with angles. They experiment with vertical angles, alternate interior angles, alternate exterior angles, and corresponding angles. They determine angle pair relationships when...
Worksheet
Curated OER

Angles, Bearings and Maps

For Students 9th - 12th
In this secondary mathematics worksheet, high schoolers determine how many independent angles are in a diagram, bearings, and flight paths. The four page worksheet contains seven problems. Answers are provided. 
Worksheet
Curated OER

Math 155 - Worksheet 5. Derivative

For Students Higher Ed
For this derivative worksheet, students find the derivative of given functions and find the equation of a tangent line to a curve. They differentiate functions and work velocity and acceleration functions. This two-page worksheet...
PPT
Curated OER

Part I: Principle of Effective Writing

For Teachers Higher Ed
Designed for higher education, this 151-slide presentation focuses on effective writing techniques, specifically in scientific manuscripts. While the slides contain readable amounts of text (none are text heavy), consider spreading this...
Worksheet
Curated OER

Attributes of Shapes Guided Lesson Explanation

For Students 1st
Triangles, circles, and rectangles are featured in a colorful, one-page worksheet that defines and illustrates these shapes. Read the explanations with your first graders and have them count the number of shapes in a given box. Since the...
Worksheet
Curated OER

Graphing a Line Parallel to an Axis

For Students 9th - 11th
In this Algebra I/Algebra II activity, students graph lines parallel to an axis.  The one page activity contains one multiple choice question with the answer.

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