Activity Detail
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Real Numbers
 


Activity Overview

Students learn to identify real numbers as rational numbers and irrational numbers. They review rational numbers as repeating decimals, and irrational numbers as non-repeating decimals. They also review commutative, associative, distributive, as well as inverse properties of real numbers systems. Students learn the Pythagorean theorem, and the formula for finding the circumference of a circle.

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 1-23 to 1-29 from the attached PDF file for your class

    		•

    		During the Activity

    		Distribute the pages to the class.

    Follow the Activity procedures:
  • Write three different irrational numbers
  • Use the real number properties to solve multiplication problems
  • Determine if a given number is a rational or an irrational number
  • Decide which single property (commutative, associative and distributive) is represented in an equation
  • Use the Pythagorean theorem to draw a triangle whose two legs are 1 unit each, and hypotenuse is √2 units
  • Use the formula for the area of a circle and the area of a square to solve the problem

    		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




    view standards alignment
    view textbook alignment

    Subject Area:
    Math : PreAlgebra : Nonlinear Functions
    Math : Middle Grades Math : Number Sense

    Author:
    Texas Instruments

    Level:
    9-12, 5-8

    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 3 from the EXPLORATIONS Book:
    Topics In Algebra 1

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