Parallel Lines and the Sum of the Angles

Tenth graders investigate the sum of the measures of the interior angles of a triangle.  In this geometry lesson, 10th graders construct a triangle and a line parallel to one of the sides of the triangle.  Using technology (Cabri Jr.), they investigate the sum of the measures of the angles.

10th Math 3 Views 0 Downloads
Resource Details

1 more...
Resource Type
Lesson Plans
Instructional Strategy
Inquiry-Based Learning

What Members Say

Kelly S.
The ready availability of resources has helped me update the activities and handouts that I use with my class. I also love the easy format to find materials.
Kelly S., 1st year teacher
Waterbury, CT