Tool:
Negative Numbers 
Screenshot:

Go to: 
http://www.commoncoremathlets.com/NegativeNumbers.htm
(opens a new window)

Description: 
Two mathlets that use pulleys to model the behavior of negative numbers under addition and multiplication. 
Technology Type: 
JavaScript  
Guide: 
User's Guide
(opens a new window)

Author: 
Dave Posner 
Language: 
English  
Cost: 
Does not require payment for use 

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Courses: 
Math 4 
Understanding integers, Negative numbers 
 Math 5 
Integers, Understanding integers, Negative numbers, Modeling integers 
 Math 6 
Integers, Understanding integers, Negative numbers, Modeling integers 
 Math 7 
Integers, Understanding integers, Negative numbers, Modeling integers, Integer operations, Adding integers, Subtracting integers, Multiplying integers 
