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RE: Khan Academy: Math instruction goes viral
Posted:
Sep 6, 2011 11:43 PM
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http://www.khanacademy.org/video/averages?playlist=Algebra
:-)
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From: owner-mathedcc@mathforum.org [owner-mathedcc@mathforum.org] on behalf of Guy Brandenburg [gfbrandenburg@yahoo.com]
Sent: Tuesday, September 06, 2011 8:51 PM
To: Petrak, Daniel G.; mathedcc@mathforum.org
Subject: Re: Khan Academy: Math instruction goes viral
Could someone save the rest of us a little bit of time and post the URL for this 'viral' video?
Guy Brandenburg, Washington, DC
http://gfbrandenburg.wordpress.com/
http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
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________________________________
From: "Petrak, Daniel G." <dgpetrak@dmacc.edu>
To: "mathedcc@mathforum.org" <mathedcc@mathforum.org>
Sent: Tuesday, September 6, 2011 10:22 PM
Subject: RE: Khan Academy: Math instruction goes viral
Sorry my reply was miss typed. I did it on my phone. So much for auto correct.
Dan Petrak
Des Moines Area Community College
Associate Professor of Mathematics/
Faculty Liaison to Distance Education
dgpetrak@dmacc.edu<mailto:dgpetrak@dmacc.edu>
515-964-6882
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From: owner-mathedcc@mathforum.org<mailto:owner-mathedcc@mathforum.org> [owner-mathedcc@mathforum.org<mailto:owner-mathedcc@mathforum.org>] on behalf of Susan [siouxgeonz@gmail.com<mailto:siouxgeonz@gmail.com>]
Sent: Tuesday, September 06, 2011 3:29 PM
To: mathedcc@mathforum.org<mailto:mathedcc@mathforum.org>
Subject: Re: Khan Academy: Math instruction goes viral
What do you think of his lesson on "averages?" I found it painfully less than useful, especially when he did things like say "we know the sum of the first four grades is ___" ... when what he did was multiply.
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