Activity Detail
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Analyzing Number Cube Sums
 


Activity Overview

Students extend their understanding of theoretical probability and patterns. They use number cubes, to build awareness that a fraction and its decimal and percent representation on the calculator are "close," but not necessarily equal.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print student activity sheet page 121 from the attached PDF for your class

    		•

    		During the Activity

    		Distribute the page to the class.

    Follow the activity procedures:
  • Roll two number cubes and represent the results as fractions, decimals, and percents
  • Examine the experimental probabilities
  • Record all the ways of rolling two number cubes to get each possible sum of 2 through 12
  • Record the theoretical probability of each sum in fraction, decimal, and percent
  • Understand what the numerator and denominator used in the calculation represent
  • Investigate the sum of all the fractional probabilities, the sum of all the decimal representations, and the sum of all the percents
  • Analyze the results

    		After the Activity

  • 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 : Statistics : Probability and Simulation

    Author:
    Texas Instruments

    Level:
    5-8, K-4

    Activity Time:
    60 Minutes

    Device:
    TI-10, TI-15 Explorer™

    Apps:
     

    Software:
     

    Accessories:
     

    Other:
    This is Activity 25 from the EXPLORATIONS Book:
    Uncovering Math with Manipulatives, the TI-10, and the TI-15 Explorer

    The following materials are required for this activity:

  • Number cubes
  • Pencils


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