The students will use the .tns document EXTTRI to manipulate a triangle and discover the relationship between the remote interior angles and an exterior angle of a triangle.
Before the Activity
- Download the .tns document EXTTRI to handhelds using TI-Nspire Computer link software or Connect to Class software.
- Students should do the worksheet "Using TI-Nspire to Explore".
During the Activity
This activity is a lesson launcher for exterior angles of a triangle.
- Distribute Student Worksheet for Exterior angles of a triangle.
- Students use the .tns document EXTTRI to answer questions from student worksheet.
After the Activity
Review student results from worksheet.