Solving Problems with Circles and Triangles

This Solving Problems with Circles and Triangles lesson plan also includes:

After completing a task involving examining the ratio of areas of triangles and circles in a given figure, scholars examine sample responses to identify other strategies they could use to solve the problem.

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CCSS: Designed
Instructional Ideas

  • Use as a formative assessment instrument for a unit on geometry
Classroom Considerations

  • Learners need to be cognizant of special right triangles, especially 30°-60°-90° triangles
  • Pupils also should understand ratio and proportional reasoning as applied to similarity

  • Requires pupils to think critically and examine alternative strategies
  • Resource includes an answer key

  • None