Description
Lesson 6 continues the work of Lesson 5 on the inscribed angle theorem. Many of the problems in Lesson 6 have chords that meet outside of the circle, and students are looking at relationships between triangles formed within circles and finding angles using their knowledge of the inscribed angle theorem and Thales’ theorem. When working on unknown angle problems, present them as puzzles to be solved. Students are to use what is known to find missing pieces of the puzzle until they find the piece asked for in the problem. Calling these puzzles instead of problems encourages students to persevere in their work and see it more as a fun activity.
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Credits
From EngageNY.org of the New York State Education Department. Geometry Module 5, Topic A, Lesson 6.
Available from engageny.org/resource/geometry-module-5-topic-a-lesson-6; accessed 2015-05-29.
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