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Handout
Math Is Fun

Math Is Fun: Lines of Symmetry of Plane Shapes

For Students 3rd - 4th Standards
Looks at the lines of symmetry in different types of polygons. Includes ten practice questions. Each question is accompanied by an explanation of the answer.
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Handout
CK-12 Foundation

Ck 12: Geometry: Basics of Geometry Study Guide

For Students 9th - 10th Standards
This study guide on Geometry covers some key vocabulary, drawing and labeling diagrams, describing geometric figures, and basic postulates for points, lines, planes, and intersections. It is available for download with free registration.
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Whiteboard
ClassFlow

Class Flow: Plane Geometry

For Teachers 3rd - 5th Standards
[Free Registration/Login Required] This is an introduction or review lesson on points, lines, planes and angles using some of the tools for Activstudio 2.
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Unknown Type
Mr. Martini's Classroom

Mr. Martini's Classroom: Basic Geometry: Points, Lines, and Angles

For Students 3rd - 6th Standards
Students can review basic geometric terms using these self-check, multiple choice questions. Three levels of questions are provided.
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Lesson Plan
Oswego City School District

Regents Exam Prep Center: Slopes and Equations of Lines

For Teachers 9th - 10th
Three resources for teaching slopes and equations of lines: a instructional activity with a formula for finding slope, different equations for lines, and several examples; a fourteen-question quiz covering slope, perpendicular and...
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Lesson Plan
Better Lesson

Better Lesson: Coordinate Grid and Geometry

For Teachers 6th - 7th Standards
Students make connections between the coordinate grid and Geometry by finding the distance of line segments using the coordinate plane. This lesson includes a detailed lesson plan, slides containing notes and problems, and a...
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Parallel Lines in the Coordinate Plane

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about parallel lines in the coordinate plane, and how to use slopes to determine whether or not two lines are parallel.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Perpendicular Lines in the Coordinate Plane

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about perpendicular lines in the coordinate plane, and how to use slopes to determine whether or not two lines are perpendicular.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Perpendicular Lines in the Coordinate Plane

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Use slopes to determine if two lines are perpendicular.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Parallel Lines in the Coordinate Plane

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] Use slopes to determine if two lines are parallel.
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Study Guide
Oswego City School District

Regents Exam Prep Center: Intuitive Notion of Line Symmetry and Plane Symmetry

For Students 9th - 10th
Definitions are provided line of symmetry, line symmetry, and plane symmetry, and several nice examples are provided that illustrate these definitions.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Slope in the Coordinate Plane

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept reviews how to calculate the slope of a line given two points on the line.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Parallel and Perpendicular Lines

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Identify intersecting, parallel and perpendicular lines in a plane
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eBook
Math Planet

Math Planet: Pre Algebra: Geometry Fundamental Statements

For Students 9th - 10th Standards
Provides examples and a video lesson that introduce fundamental statements of geometry.
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Website
PBS

Pbs Learning Media: Two Points Determine a Line

For Students 6th - 8th Standards
In this video segment [2:10] from Cyberchase, Digit must make a straight line between the two points and then follow the path created.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Perpendicular Lines

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students about perpendicular lines.
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Unit Plan
CK-12 Foundation

Ck 12: Parallel Lines

For Students 9th - 10th Standards
[Free Registration/Login Required] Students explore the concept of parallel lines by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Identifying Straight Lines in Various Shapes

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on determining if there are straight lines in various two dimensional shapes.
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Graphic
Oswego City School District

Regents Exam Prep Center: Length of a Line Segment (Distance)

For Students 9th - 10th Standards
Use the coordinate plane and Pythagorean theorem to determine the length of a line segment. Click on the "Topic Index" to find a related practice exercise and teacher resource.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Basic Geometric Definitions

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students identify points, rays, lines, and line segments. Students examine guided notes, review guided practice, watch instructional videos and...
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Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: Lines, Rays, Line Segments, & Planes

For Teachers 3rd - 8th Standards
This robust lesson plan for upper elementary and middle school grades introduces the concepts for lines, rays, line segments, and planes. Resources are linked to it and ready for your use.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co Defining Parallel Lines

For Teachers 9th - 10th Standards
Alex and his friends are studying for a geometry test and one of the main topics covered is parallel lines. They each write down what they think it means for two distinct lines in a plane to be parallel. Students are asked to analyze...
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting Straight Lines and Curves in Various Shapes

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on counting lines and curves in various two dimensional shapes.
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Whiteboard
ClassFlow

Class Flow: Basic Geometry Vocabulary

For Teachers 6th - 8th
[Free Registration/Login Required] This flipchart is an introduction to geometry vocabulary and elementary geometric figures. Activities ask students to match vocabulary and definitions and label figures. Assessment questions follow.