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This Thales’ Theorem lesson plan also includes:
Isn't paper pushing supposed to be boring? Learners attempt a paper-pushing puzzle to develop ideas about angles inscribed on a diameter of a circle. Learners then formalize Thales' theorem and use geometric properties to develop a proof of the theorem.
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Instructional Ideas
- Use the lesson to introduce Thales' theorem
Classroom Considerations
- Experiment requires materials (paper, colored stock paper, markers)
- Be sure to model the experiment, as instructions may be confusing to participants
- The first installment of a 23-part module
Pros
- Hands-on activity keeps learners engaged in the subject material
- Teacher version includes useful background information and an answer key to student worksheets
- Resource includes link to further information on Thales' theorem
Cons
- Inconsistent spelling of Thales' theorem vs Thales's theorem