Activity Detail
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Linear Inequalities: Using Graphs and Tables
 


Activity Overview

Students learn to estimate the solution set, in real numbers, of a linear inequality using graphical methods on a number line and on a Cartesian (x-y) graph. They also learn how to solve inequalities using tables.

Before the Activity

Install Topics in Algebra 1 (Chapters 1-4) App 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 4-1 to 4-5 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to the class.

    Follow the Activity procedures:
  • Draw the number line graph for each inequality
  • In the activity Build the Solution Set!, select the correct solution for x from the four options given
  • Use the number line to estimate the solution set of the given inequalities
  • Use the table of the expression to estimate the solution for the inequality and then use number sense to determine the exact answer
  • Find the solution of inequalities using x-y graphs
  • Solve additional problems

    		After the Activity

    		Students will complete the Student Worksheet and analyze the results.

    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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    Subject Area:
    Math : Algebra I : Linear Equations and Functions

    Author:
    Texas Instruments

    Level:
    9-12

    Activity Time:
    60 Minutes

    Device:
    TI-73 Explorer™, TI-83 Plus Family, TI-84 Plus Family

    Apps:
    Topics in Algebra

    Software:
    TI Connect™

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

    Other:
    This is Activity 10 from the EXPLORATIONS Book:
    Topics In Algebra 1 .

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