Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Explore lessons that cover essential, foundational mathematics concepts.
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
In this activity, students explore the relationship between a circle's circumference and its diameter. This will lead students to their own discovery of a value for pi.
Students explore the diameter and circumference of a circle. They use the Cabri™ Jr. app to construct a circle.
Students construct the diameter of a circle, measure it, and record their answer. Then they use the Measurement tool to find the circumference of the circle.
Changing the size of the circle, students will observe the value of the ratio of the circumference to the diameter. On the Home screen, they can confirm these ratios.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.