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.

9th - 12th Math 3 Views 2 Downloads
CCSS: Designed
Resource Details

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Resource Type
Lesson Plans
Instructional Strategy
Inquiry-Based Learning

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