Activity Detail
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What's My Line?
 


Activity Overview

This activity focuses on strengthening student understanding of connections among graphical, tabular, and algebraic representations of simple linear functions. They enter a simple program that allows them to determine the equations for lines, in the form Y = AX + B, based on tabular and graphical information.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print pages 107 - 112 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to the class.

    Follow the Activity procedures:
  • Run the LINE program
  • Examine the table of values of the expression AX + B for different integer values of X
  • Study a graph of the ordered pairs satisfying the equation Y = AX + B
  • Guess the values of A and B and check whether they are correct


  • Run the program and select 2 random integer values for A and B
  • View the entry placed by the program in the graph menu or view a table of values of ordered pairs
  • Observe the graph of Y = AX + B and make a guess for the values of A and B
  • Compare the results of the two guesses

    		After the Activity

    		Students complete the Questions sheet.

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

    		Other Downloads




    view standards alignment
    view textbook alignment

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

    Author:
    Texas Instruments

    Level:
    5-8

    Activity Time:
    100 Minutes

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

    Apps:
     

    Software:
     

    Accessories:
    Unit-to-Unit link cables

    Other:
    This is Activity 11 from the EXPLORATIONS Book:
    Graphing Calculator Activities for Enriching Middle School Mathematics



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