Lesson Plan

Solve for Unknown Angles—Angles in a Triangle

Curated and Reviewed by Lesson Planet

Assist your class with each angle of geometry as they use exterior angles to form linear pairs with adjacent interior angles. They cover multiple vocabulary terms and work practice problems, complete with justifications, before taking an assessment to test their knowledge of angles and geometric configurations. 

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Design a memory game with vocabulary words in the lesson, and use a study tool
Classroom Considerations
  • Make certain your class justifies their rationale for solutions to problems, as it is an important skill as the class moves forward with future lessons
  • Ensure each learner understands the review prior to beginning the lesson to avoid confusion
  • The eighth installment in a 36-part series
Pros
  • Detailed steps allow the class to learn individually or as a group with minimal modifications
  • Required justifications for each problem ensures everyone understands each concept presented prior to progressing further
Cons
  • None
Common Core