Quick Take on ... Theoretical and Experimental Probability
Middle school students need opportunities to think about probability to understand the meaning of taking
a chance. These resources support the active development of the concept of probability and the appropriate
use of related mathematics terminology.
Adjustable Spinner
http://www.shodor.org/interactivate/activities/spinner/index.html
This simulation demonstrates the difference between experimental and theoretical probabilities. It is easy to run a
number of experiments.
Data Management: A Look at Leisure Activities
http://www.sasked.gov.sk.ca/docs/midlmath/model9.html
Use the navigation on this site to select appropriate class activities. Students collect and analyze data and
can look at differences between experimental and theoretical data when rolling a die.
Introduction to the Concept of Probability
http://www.shodor.org/interactivate/lessons/IntroProbability/
This lesson is a good way to build on students' innate understanding of probability.
It includes teacher information, student activities, and definitions of key terms.
Random Drawing Tool - Independent Trials
http://illuminations.nctm.org/ActivityDetail.aspx?ID=67
This applet enables students to run experiments to examine and better understand theoretical and
experimental probabilities. See the related lesson Boxing Up at
http://illuminations.nctm.org/LessonDetail.aspx?ID=L448.
Ratios in Probability
http://filer.weblogger.com/earlyalgebraManilaWebsite/classes/Lesson21.pdf
Students can examine the probability of winning prizes using probabilities expressed as ratios.
The Smithville Families
http://www.pbs.org/teachersource/mathline/lessonplans/msmp
/smithville/smithville_procedure.shtm
This printable lesson uses Pascal's triangle to build student understanding of theoretical probability.
The lesson explores the probabilities for the births of boys and girls in a large family. The outcome
of a coin toss is used to indicate the birth of a boy or girl.
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Copyright
September 2004-2009 — The Ohio State University. This material is based upon work
supported by the National Science Foundation under Grant No. 0424671. Any
opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect the views of
the National Science Foundation.
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