Tool:
Algebra Balance Scales  Negatives 
Screenshot:

Go to: 
http://nlvm.usu.edu/en/nav/frames_asid_324_g_3_t_2.html
(opens a new window)

Description: 
Solve simple linear equations using a balance beam representation. Coefficients and constants may be positive or negative. 
Technology Type: 
Java Applet  
Guide: 
User's Guide
(opens a new window)

Author: 
National Library of Virtual Manipulatives (Utah State University) 
Language: 
English  
Cost: 
Does not require payment for use 

Average Rating: 
[8]

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Activity: 
Algebraic Equations 
Tools: 
Algebra Tiles 

Algebra Balance Scales 
Courses: 
Math 7 
Algebra and expressions, Equations and functions, Linear relationships 
 Algebra 
Use of Variables, Equivalent Equations 

Teacher Review (Not based on classroom experience)
Reviewer: weedthenmulch, Nov 3 2006 07:54:05:310PM 
Appropriate for: introduction to a concept, practice of skills and understandings, applications of a concept or technique 
Ability to meet my goals: Very Ineffective 
Recommended for: Math 7: Algebra and expressions, Equations and functions; Algebra: One Variable Equations 

Developer Review (Not based on classroom experience)
Reviewer: Kraz, Oct 17 2006 09:11:32:840AM 
Appropriate for: practice of skills and understandings, applications of a concept or technique 
Ability to meet my goals: Effective 
Recommended for: Algebra: Integer Operations, Use of Variables, One Variable Equations 

Student Review (Not based on classroom experience)
Reviewer: Deatra, Oct 14 2005 07:59:14:460PM 
Appropriate for: introduction to a concept, practice of skills and understandings 
Ability to meet my goals: Effective 
Recommended for: Math 7: Algebra and expressions, Equations and functions 
Read the full length reviews for this resource 



Jeff L 
Comment:  The visual impact of establishing the balanced equation first will give more credence to 'solving' by performing operations on both sides of the equation. It will allow the student to investigate and see what the teacher may have introduced. 

JTW 
Comment:  This is a great visual especially for my Intensive Basic Skills or nonenglish speaking students. It will also help my careless students see what happens when they randomly perform operations. 

Deatra 
Comment:  The resource allows students to set up an equation, and walks them stepbystep through the process of solving an equation. It also allows them to make mistakes and gives them helpful feedback. 

JohnnyD 
Comment:  Excellent visual representation of solving equations. 
