The students will use Cabri Jr. and the APPVAR ASUM2 to manipulate a triangle and discover the sum of the angles of a triangle.
Before the Activity
- Install Cabri Jr. on all student handhelds
- Download the application variable ASUM2 handhelds using TI-Connect and then unit to unit link cables.
- Students should do the worksheet "Selecting and dragging an object using Cabri Jr."
During the Activity
This activity is a lesson launcher on sum of the angles of a triangle.
- Distribute Student Worksheet for sum of the angles of a triangle.
- Students use ASUM2 APPVAR to answer questions from worksheet
After the Activity
Review student results from worksheet.