Education Technology

Calculus Tools TI-89 Flash Application How - to Guide

Activity Overview

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.

Before the Activity

  • Install TI Connect™ using the TI connectivity cable
  • See the attached PDF file for detailed instructions for this activity
  • Print pages 1 - 4 from the attached PDF file for the class
  • During the Activity

    Distribute the page to the class.

    Follow the Activity procedures:

  • Activate the Calculus Tools flash application
  • Open the Derivative menu and select Tangent Line
  • Observe the dialog box with default values
  • Observe the graph of the function and the tangent line, as well as the equation of the tangent line
  • Open the Integral menu and select Right Sum
  • Open the Right Sum dialog box and execute the program with default values
  • Note the right hand rectangles drawn on the curve and compute the sum of their areas
  • Experiment for different functions and for different values for Tangent Line and Right Sum
  • After the Activity

    Students' answer questions on the Activity sheet.

    Review student results:

  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary