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Tool: Changing Cost per Minute
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Go to: http://www.nctm.org/standards/content.aspx?id=25091 (opens a new window)
Description: Users learn how modifications in the rate affect the linear graph displaying accumulation (the total cost of calls).
Technology Type: Java Applet
Author: NCTM
Language: English
Cost: Does not require payment for use

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Tool: Constant Cost per Minute
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 Teacher Review (Not based on classroom experience) Reviewer: ncmathbuff, Jul 31 2008 12:04:52:787PM Appropriate for: introduction to a concept Ability to meet my goals: Effective Recommended for: Math 6: Algebra and expressions, Equations and functions, Ratio and proportionMath 7: Algebra and expressions, Equations and functions, Linear relationships, Ratio and proportion Teacher Review (Not based on classroom experience) Reviewer: rebsterjane, Jun 9 2008 04:20:07:560PM Appropriate for: applications of a concept or technique Ability to meet my goals: Neutral Recommended for: Algebra Student Review (Not based on classroom experience) Reviewer: jdf35, Oct 16 2006 12:35:43:567PM Appropriate for: introduction to a concept, practice of skills and understandings, applications of a concept or technique Ability to meet my goals: Effective Recommended for: Math 7: Equations and functions, Ratio and proportionGeometry: Points and linesAlgebra: Use of Variables, Linear Equations Read the full length reviews for this resource