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Unknown Angle Proofs—Proofs with Constructions Lesson PlanUnknown Angle Proofs—Proofs with Constructions Lesson Plan
Publisher
EngageNY
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
9th - 10th
Subjects
Math
1 more...
Resource Type
Lesson Plans
Audience
For Teacher Use
Duration
45 mins
Instructional Strategies
Discussion
1 more...
Technology
Calculator
Year
2015
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc
Language
English, Arabic
Lesson Plan

Unknown Angle Proofs—Proofs with Constructions

Curated and Reviewed by Lesson Planet
This Unknown Angle Proofs—Proofs with Constructions lesson plan also includes:
  • Congruence, Proof, and Constructions - Module Overview (PDF)
  • Unknown Angle Proofs—Proofs with Constructions (Doc)
  • Unknown Angle Proofs—Proofs with Constructions (PDF)
  • Join to access all included materials

Provide your emerging mathematicians with the tools to learn as they incorporate auxiliary lines to solve unknown angle proofs in this continuing segment. They decipher information from a diagram to uncover the missing pieces and complete each problem, along with providing a correct justification. 

12 Views 4 Downloads
CCSS: Designed

Concepts

angles, geometric patterns, deductive reasoning

Additional Tags

math

Instructional Ideas

  • Locate additional problems to present as samples for extra practice

Classroom Considerations

  • Assumes lesson entitled "Unknown Angle Proofs-Writing Proofs" has been covered prior to this lesson
  • Ensure each person fully understands the importance of justification as they work sample problems and discuss prior to completing an assessment
  • The tenth installment in a 36-part series

Pros

  • Builds on a previous lesson about angle proofs and provides additional sample problems to ensure the class understands concepts
  • Contains a detailed answer key to help with discussions and allows individual learning, if desired

Cons

  • None

Common Core

HSG-CO.C.9 MP7

View 38,999 other resources for 9th - 10th Grade Math

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