Discussion:  All Topics 
Topic:  A variety of uses 
Related Item:  http://mathforum.org/mathtools/tool/13171/ 
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Subject:  RE: A variety of uses 
Author:  ALeG 
Date:  Apr 28 2009 
> This tool will do all of those things that you say very well (and it
> can probably do more if we think hard enough!). But, I think the
> real power of this tool comes from the fact that it puts y = mx + b
> into a context that the students can understand. I can make the
> exact same graphs on numerous other technologies (my TI84, online
> graphing calculators, there's even one for the iPhone!). The simple
> fact that it uses icons to represent the runners or that it refers
> to the starting point rather than yintercept allows the students to
> make a connection. It is then easier to make that leap to abstract
> notation (algebra) rather than to start straight into it. Not only
> are we teaching the content, but we are also make further content
> accessible.
I like the notion of putting y = mx + b in context. Coicidentally we will be
doing the equation of a line next week in prealgebra. My kids are ninth grade,
but the fact thay they are still in prealg at this point means they really need
a lot of visual help and I need to be as concrete as possible. I think this
will help.
 
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