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This Construct a Nine-Point Circle lesson plan also includes:
There are an infinite number of points on a circle; can you find nine of them? After putting together a nine-point circle, pupils use constructions and their knowledge of triangle segments to determine the center of the circle. Learners execute multiple methods to achieve this task.
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CCSS:
Designed
Concepts
Additional Tags
Instructional Ideas
- Multiple constructions are performed on the same triangle which becomes cluttered; allow pupils to erase as needed
Classroom Considerations
- Utilizes the construction from lesson #31 in this series
- Learners should have a strong understanding of the special segments of a triangle and their points of concurrency
Pros
- Vocabulary is highlighted and used consistently throughout the lesson
Cons
- The task may be too advanced for the average learner