Lancaster School District
8th Grade MATH Unit #5 Geometry 2013-14
Unit Title: #5 Geometry
Grade: 8
Unit Length: 5 weeks
Date Created: 6/18/13
Unit Components/Sub-Headings
ANGLES AND
TRIANGLES
TRANSFORMATIONS
TRANSFORMATIONS
ON COORDINATE
PLANE
CONGRUENCE
SIMILAR FIGURES
MAJOR
8.G.5
MAJOR
8.G.1
MAJOR
8.G.3
MAJOR
8.G.2
MAJOR
8.G.4
MAJOR
Supporting
Supporting
Supporting
Supporting
Supporting
Supporting
Additional
Additional
Additional
Additional
Additional
Additional
Common Core Content Standards
Unit Vocabulary/
Concepts/Topics
 Parallel lines
Transversal
Similarity
Interior and Exterior
Angles
Unit Vocabulary/
Concepts/Topics
Transformations
Rotation
Reflection
Translation
Dilation
Lancaster School District
Department of Curriculum, Instruction & Assessment
Unit Vocabulary/
Concepts/Topics
Coordinate plane
x-axis
y-axis
intercepts
Unit Vocabulary/
Concepts/Topics
Congruence
Unit Vocabulary/
Concepts/Topics
Similarity
Similar figures
Unit Vocabulary/
Concepts/Topics

8th Math Unit #5
June 19, 2013
Lancaster School District
Prior knowledge to build
on
Protractors and
measuring angles, degrees
in a triangle
Prior knowledge to build on:
Line segment
Prior knowledge to build
on
UNDERSTANDING OF
COORDINATE PLANE
Prior knowledge to build
on
Objectives/Learning Targets: The student will . . ./I can . . .
1. I can use rotations, reflections, and translations in order to
determine if 2 figures are congruent.
2. I can use rotations, reflections, and translations in order to
determine if 2 figures are similar.
3. I will use coordinate notation to describe the change of a figure on
the plane.
4. I can find the interior and exterior angles of a triangle.
Prior knowledge to build
on
Prior knowledge to build
on
CC Standards for Mathematical Practice
1.
2.
3.
4.
5.
6.
7.
8.
Make sense of problems and persevere in solving them.
Reason abstractly and quantitatively.
Construct viable arguments and critique the reasoning of others.
Model with mathematics.
Use appropriate tools strategically.
Attend to precision.
Look for and make use of structure.
Look for and express regularity in repeated reasoning.
EMPHASIS FOR THIS UNIT:
#4
#5
5. I can find angles created when parallel lines are cut by a
transversal.
6.
Unit Resources/Materials/Strategies
Lancaster School District
Department of Curriculum, Instruction & Assessment
8th Math Unit #5
June 19, 2013
3
Student Activities
http://ca.pbslearningmedia.org/resource/e036d693-e19c4e34-a558-5ccad0a251bd/e036d693-e19c-4e34-a5585ccad0a251bd/
(requires computer)
Textbook Teacher Resource Kit
8.G.1-4: 7th Grade Text Book Ch. 9
www.sharemylesson.com/teachingresoure/transformations-rotations-jigsaw-6159364/
Internet Sites
www.brightstorm.com/math/geometry/transformations
www.mathisfun.com/geometry/transformations
www.misterteacher.com/abc.html
www.gradeamathhelp.com/transformation-geometry.html
www.mathisfun.com/geometry/congruent.html
www.mathisfun.com/geomtery/congruent-angles
www.khanacademy.org/math/geometry/congruent-triangles
www.mathisfun.com/geometry/exterior-angle.html
http://www.onemathematicalcat.org/Math/Geometry_obj/int_ext_angles_triangles.htm
www.kutasoftware.com
www.sharemylesson.com/teachingresource/transformations-reflections-rotations-hunt6124065/
www.sharemylesson.com/teachingresource/transformation-golf-6030417/
Collaboration
Problem Solving
Translation/Rotation
Real World Applications
Your construction company has been commissioned to
create the layout of a new mobile home park. Upon placing
the first unit, you realize that it is in the wrong plot, facing
the wrong direction, and it is too small as well.
Technology
Smartboard
Manipulatives/Visuals
Compass
Graph Paper
Protractor
Tangram blocks
ruler
Supplemental Materials
You have planted it the second quadrant facing north. It
needs to be rotated around the manager’s office (origin) to
face south, be located in quadrant four, and be doublewide
(dilate with respect to the origin).
ASSESSMENT/Evidence of Learning
Select and Describe
(Choose the best tool/s for this unit; not all are required)
Lancaster School District
Department of Curriculum, Instruction & Assessment
FLEXIBLE AND RESPONSIVE INSTRUCTION
Select/create corrective and enrichment activities/strategies
8th Math Unit #5
June 19, 2013
4
Selected response (e.g., multiple choice, matching, true/false)
Identify translations, reflections, rotations, dilations (1-8 questions)
Constructed response (e.g., fill-in-the-blank, short answer, label, graphic)
Translate, reflect, rotate, or dilate a pre-image (6 questions)
Label coordinates of new image.
Unit Performance Task
Products (e.g., graph, model, project, poster)
Transformation Poster and presentation (group activity)
Interventions









re-teaching
alternative textbooks
alternative materials
workbooks and study guides
academic games
learning kits
cooperative groups/teams
peer and individual tutoring
learning centers and
laboratories
 technology-assisted
instruction (e.g., Podcasts,
internet applications, video)
Enrichments/Extensions
•tutoring peers
•developing practice exercises
•developing related media materials
•completing special projects and experiments
•developing games, problems, and contests
•using advanced computer-assisted/web-based lessons
•locating background materials for future or current
topics
•developing additional formative assessments
•planning to teach a mini-unit
•creating bulletin boards and displays
•applying knowledge to a new situation
Performances (e.g., class presentation, explanation of problem solving method)
Process-focused (e.g., critique thinking of others, justify process & results)
Student Self-Assessment (e.g., journal reflection, portfolio)
Portfolio (e.g., collections of products, performances, artifacts, tests)
Lancaster School District
Department of Curriculum, Instruction & Assessment
8th Math Unit #5
June 19, 2013