Activity Detail
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Tracing Paper Inequalities
 


Activity Overview

In this activity, students will graph systems of linear inequalities in two variables in the Cartesian coordinate plane and find their solutions.

Before the Activity

  • Install the Inequality Graphing Application on the calculator using one of these two methods:
  • TI Connect™, a TI Connectivity Cable, and the Unit-to-Unit Link Cable
  • TI-Navigator™  "send to class" feature
  • See the attached PDF file for detailed instructions for this activity
  • Print pages 17 - 22 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to your class.

    Follow the Activity procedures:
  • Write down two linear inequalities with 2 variables and graph them on sketch papers
  • Place the two graphs one on top of the other and align the axes
  • Observe the common shaded region
  • Verify these graphs by using the Inequality Graphing Application
  • Verify algebraically whether a point is a part of the solution set
  • Observe that a system of linear inequalities has a common region as a solution set, whereas a system of linear equations has only one solution, the point of intersection

    		After the Activity

    		Students will complete the Student Worksheet and answer questions listed in it.

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

    		Other Downloads




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    view textbook alignment

    Subject Area:
    Math : Algebra I : Equations and Inequalities

    Author:
    Texas Instruments

    Level:
    9-12

    Activity Time:
    60 Minutes

    Device:
    TI-83 Plus Family, TI-84 Plus Family

    Apps:
    Inequality Graphing

    Software:
    TI Connect™

    Accessories:
    TI Connectivity Cable, Unit-to-Unit link cables

    Other:
    This is Activity 2 from the EXPLORATIONS Book:
    Exploring Mathematics with the Inequality Graphing Application

    The following materials are required for this activity:

  • Tracing paper


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