Students inflate a balloon and observe the relationship between the rate its volume is changing and the rate points on its surface are getting closer to each other. They use the their calculator to determine the exact rate of change.
Before the Activity
Students should have access to TI-89/TI-89 Titanium and TI-92 Plus/Voyage.
During the Activity
The document below is the activity guide. Provide each student with a printed copy of this document.
After the Activity
Review student results and, as a class, discuss questions that appeared to be more challenging. Re-teach concepts as necessary.