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Tool: Adjustable Spinner
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Description: This tool allows users to create their own spinners and examine the outcomes given a specified number of spins. Users learn that experimental probabilities differ according to the characteristics of the model; they also grapple with the idea of variability–that two identical spinners or dice may not produce identical experimental data.
Technology Type: Java Applet 
Author: NCTM: Illuminations
Language: English 
Cost: Does not require payment for use

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Lesson Plans: Stick or Switch?
Wrapping Up the Unit
Courses: Kindergarten Subtraction
Math 1 Subtraction
Math 2 Subtraction
Math 3 Subtraction
Math 4 Probability
Math 5 Probability
Math 6 Probability
Math 7 Probability

Teacher Review (Not based on classroom experience)
Reviewer: mcaswel7, Jun 30 2009 10:47:10:913AM
Appropriate for: practice of skills and understandings, applications of a concept or technique, advanced investigations
Ability to meet my goals: Very Effective
Recommended for: Math 5: Probability
Read the full length reviews for this resource