Education Technology

Features of the TI-89 that Maximize its Use

Activity Overview

This Computer Algebra System (CAS) activity encourages students to investigate the various functions and applications of the CAS calculator. They study and practice various types of problems in algebra and calculus with the help of the calculator.

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 - 11 from the attached PDF file for the class
  • During the Activity

    Distribute the page to the class.

    In this activity, students will:

  • Study the various keys and functions on the CAS calculator
  • Understand the use of special features
  • Learn different management techniques
  • Use the script feature
  • Understand how the deSolve command solve problems based on primary and secondary differential equations
  • Use slope fields to solve differential equations graphically
  • Create a user defined function
  • Solve multi-variable equations with one unknown
  • Convert units and create specific user-defined units
  • Explore the graphing techniques of the calculator
  • 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