Texas Instruments
Texas Instruments: Cubic, Zeros and Tangents
In this Computer Algebra System (CAS) activity, students use CAS to prove a theorem regarding cubic functions, their zeros [roots], and tangents to the curves.
Texas Instruments
Texas Instruments: Calculus Tools Ti 89 Flash Application How to Guide
This Computer Algebra System (CAS) activity encourages students to investigate the use of the calculator to graph a function, find the value of a tangent to the curve, and find area under the curve using right sum.