Download Angles Formed by Parallel Lines and a Transversal

Michigan Department of Education
Technology-Enhanced Lesson Plan
Lesson Title: Geometer’s Sketchpad: Angles Formed by Parallel Lines
and a Transversal
Downloadable activity at:
http://www.keypress.com/catalog/products/software/sampleActivities/Geom
etryActivities.html
Adapted by: Carolyn Newkirk and Marsha Myles
Lesson Abstract: Students identify and measure corresponding angles,
alternate interior angles, and alternate exterior angles, and determine
which angles are congruent to each other.
Subject Area: Mathematics
Grade Level: 6th grade
Unit Title: Geometry
Michigan Educational Technology Standards Connection:
Technology Productivity Tools
1. apply common software features (e.g., thesaurus, formulas, charts,
graphics, sounds) to enhance communication and to support creativity
2. use a variety of technology resources, including the internet, to increase
learning and productivity
3. explore basic applications that promote creativity (e.g., graphics,
presentation, photo-editing, programming, video-editing)
Grade Level Content Expectations Connection:
G.GS.06.01 Understand and apply basic properties of lines, angles, and
triangles, including:
—triangle inequality
—relationships of vertical angles, complementary angles, supplementary
angles
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—congruence of corresponding and alternate interior angles when parallel
lines are cut by a transversal, and that such congruencies imply parallel
lines
—locate interior and exterior angles of any triangle, and use the property
that an exterior angle of a triangle is equal to the sum of the remote
(opposite) interior angles
—know that the sum of the exterior angles of a convex polygon is 360º.
Estimated time required to complete lesson or unit:
One class period of approximately 45-55 minutes
Instructional resources:
Download student worksheet from web address above.
Prior required technology skills:
Students should have working knowledge of Geometer’s Sketchpad before
this activity.
Sequence of Activities:
Students will work through the worksheet that accompanies the activity.
See entire sequence of plans at:
http://www.keypress.com/catalog/products/software/sampleActivities/Geom
etryActivities.html
Assessments:
 Post-Assessment: Completed worksheet.
Technology (hardware/software):
Computers with Geometer’s Sketchpad Software
Internet connection to download activity
Key Vocabulary: corresponding angles, alternate interior angles, alternate
exterior angles, parallel lines, transversal, congruence
Application Beyond School:
Teacher Reflection and Notes:
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