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Lesson Plan
Curated OER

Traveling aroud Our Town

For Teachers 1st - 2nd
Students are asked to describe to a partner how he or she walks to school or the bus stop. They are shown on the overhead an one-inch grid paper, and at the intersection of two lines on the grid paper, students are shown a house and...
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Worksheet
Curated OER

Skills Review Sheet: Equations

For Students 8th - 9th
Learners find the equation that passes through two given points. They then locate the intersection of two lines, and find the x and y intercepts for four parabolas when given their equations. Answers are provided.
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Handout
Charleston School District

Parallel Lines Cut by a Transversal

For Students 8th Standards
Pupils study angle measurements between different types of angles associated with parallel lines and transversals. The independent practice asks pupils to identify the types of angles in a diagram and to determine the measure of angles. 
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Lesson Plan
Curated OER

Intersections, Unions, and Compound Inequalities

For Teachers 8th - 9th
In this algebra worksheet, students graph inequalities on number lines. Two problems are written in interval notation. The other five problems require students to graph and then write in interval notation.
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PPT
Curated OER

Points, Lines, Segments, and Rays Lesson 15-1

For Teachers 4th - 5th Standards
Some of the most important vocabulary in the study of geometry is presented here. In this PowerPoint, learners view the definitions for points, lines, segments, and rays. The definitions and graphics are clear, and kids are also coached...
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Worksheet
Curated OER

Identify Parallel/Perpendicular/Intersecting Lines

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

Secant Lines; Secant Lines That Meet Inside a Circle

For Teachers 9th - 12th Standards
Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.
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Lesson Plan
Illustrative Mathematics

The Circle and The Line

For Teachers 8th - 12th Standards
Here is a resource where algebra learners show their understanding of a system of equations involving a circle and a line. Once graphed, learners see two points of intersection, one where the ordered pair is read, and a second where...
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Lesson Plan
EngageNY

Similar Triangles in Circle-Secant (or Circle-Secant-Tangent) Diagrams

For Teachers 9th - 12th Standards
First angle measures, now segment lengths. High schoolers first measure segments formed by secants that intersect interior to a circle, secants that intersect exterior to a circle, and a secant and a tangent that intersect exterior to a...
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Lesson Plan
Curated OER

Call it "Macaroni"

For Teachers 1st - 3rd
Who knew there were so many fun educational opportunities featuring pasta? Scholars read a brief informational text about the history of pasta (note that "macaroni" is spelled two different ways, so address this if kids are reading...
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Worksheet
Curated OER

Parallel, Perpendicular and Intersecting Lines

For Students 9th - 11th
In this parallel, perpendicular and intersecting lines worksheet, learners analyze the slopes of given lines and determine if the lines are parallel, perpendicular or intersecting. This five-page worksheet contains approximately 25...
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Worksheet
Curated OER

Lines-Online Quiz

For Students 6th - 7th
In this math learning exercise, students identify pairs of lines as parallel, intersecting, perpendicular, or none of the above. Each problem is presented as a drawing of two lines. The students click in the box that tells their choice...
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Lesson Plan
Curated OER

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.
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Lesson Plan
Curated OER

2-D Geometry

For Teachers 3rd
Third graders describe and compare attributes of two-dimensional shapes. They explain geometric terms, angles and shapes. Students demonstrate each vocabulary word with their body and they mirror the body positions associated with each...
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Lesson Plan
Curated OER

Angle Relationships

For Teachers 10th
Tenth graders explore the angle relationships that exist when two lines intersect. For this geometry lesson, 10th graders estimate the measure of given angles and use their graphing calculator tools. Students use this knowledge to find...
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Assessment
Inside Mathematics

Picking Apples

For Teachers 8th Standards
Getting the best pick of the apples depends on where to pick. The short assessment presents a situation in which class members must analyze a real-world situation to determine the cost of picking apples. The pricing structures resemble...
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Interactive
CK-12 Foundation

Graphs of Linear Systems: Heart Rate Tracker

For Students 8th - 10th Standards
Max out heart rates for males and females. Formulas of maximum heart rates provide the equations for a linear system. Pupils use the interactive to graph the equations for males and females and determine their points of intersection. The...
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Worksheet
Curated OER

Worksheet 3.5 Simultaneous Equations

For Students 8th - 9th
In this simultaneous equations activity, 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 have....
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Lesson Plan
Fredonia State University of New York

Watch Your Step…You May Collide!

For Teachers 8th - 10th Standards
Can two lines intersect at more than one point? Using yarn, create two lines on the floor of the classroom to find out. Cooperative groups work through the process of solving systems of equations using task cards and three different...
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Lesson Plan
1
1
EngageNY

Systems of Equations

For Students 10th - 12th Standards
What do you get when you cross a circle and a line? One, two, or maybe no solutions! Teach learners to find solutions of quadratic and linear systems. Connect the visual representation of the graph to the abstract algebraic methods. 
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Worksheet
Curated OER

Operations with Sets

For Students 9th - Higher Ed
For this operations with sets activity, students solve 1 multiple choice problem. Students identify the intersection of two sets A and B given the two sets.
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Lesson Plan
Texas Instruments

Exploring Tangents

For Teachers 9th - 12th Standards
Explore the concept of tangent lines. In this tangent line lesson plan, learners graph a circle and two lines on their graphing calculator using Cabri Jr. Students construct the lines so that they both intersect at a given point and are...
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Worksheet
1
1
Curated OER

Quick Graphs of Linear Equations

For Students 9th - 12th Standards
Graph equations of lines using the slope-intercept method or by plotting both x and y intercepts. Determine if two lines are parallel or perpendicular by comparing their slopes. This handout includes step-by-step directions and four...
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Lesson Plan
EngageNY

Equations for Lines Using Normal Segments

For Students 9th - 12th Standards
Describing a line using an algebraic equation is an essential skill in mathematics. The previous activity in the series challenged learners to determine if segments are perpendicular with a formula. Now they use the formula to determine...