Find where to buy the TI-84 Plus CE Python graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Learn about the math and science behind what students are into, from art to fashion and more.
Enhance your teaching with a hands-on learning experience.
We are here to help with distance learning resources for schools and districts.
Update OS, transfer files andtake screen captures for yourTI-Nspire™ CX II graphing calculator.
TI Connect™TI Connect™ CE
TI Connectivity CableUnit-to-Unit link cables
Students measure interior and exterior angles of a triangle and make conjectures about their relationships.
Students should construct a triangle using the Triangle tool and label the vertices A, B, and C.
With Cabri™ Jr., students construct a triangle and measure the three interior angles. With the Calculate tools they make a conjecture about the sum of the angles for all triangles, acute, obtuse, and right.
Using the triangle students have already constructed, they will construct a line and measure the exterior angle that results from it. Using the Calculate tool again, they will make conjectures about the relationships between interior and exterior angles.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.