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Measuring Angles in a Triangle

High schoolers investigate the sum of the measures of the angles of a triangle. They draw a triangle and measure the interior angles. Using Cabri Jr., learners find the sum of the measures of the interior angles. The lesson provides an opportunity for discovery and conjecture.

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CCSS: Designed
Concepts

Resource Details

Grade
9th - 12th
Subjects
Math
1 more...
Resource Type
Lesson Plans
Language
English
Instructional Strategy
Inquiry-Based Learning
Technology
Calculator
Included Materials

  • Measuring Angles in a Triangle Teacher Notes
  • Activity
  • Project