Start a 10-Day Free Trial to Unlock the Full Review

Why Lesson Planet?

Find quality lesson planning resources, fast!
Share & remix collections to collaborate.
Organize your curriculum with collections. Easy!
Have time to be more creative & energetic with your students!

Triangles: Triangle Inequalities

Using SketchPad on their calculators to construct triangles, students measure exterior angles and remote interior angles of their constructed triangle. Students develop the triangle inequality from observation and exploration with their constructions.

4 Views 7 Downloads
CCSS: Designed
Resource Details

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

  • Triangles: Triangle Inequalities
  • Activity