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        <title>Math Forum</title>
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            <title>Re: Some important demonstrations on negative numbers &amp;gt; a MACS syllabus</title>
        
            <link>http://mathforum.org/kb/thread.jspa?messageID=7938455&amp;tstart=0#7938455</link>

        

            <description><![CDATA[<br>On Dec 17, 2012, at 1:17 PM, Joe Niederberger &lt;niederberger@comcast.net&gt; wrote:<br><br><font color="#007777">&gt;&gt; Most of the popular]]></description>

        

            <jf:creationDate>Dec 17, 2012 7:57:51 PM</jf:creationDate>
            <jf:modificationDate>Dec 17, 2012 7:57:51 PM</jf:modificationDate>
            <jf:author>syscore</jf:author>
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        <item>
            <title>Re: Some important demonstrations on negative numbers &amp;gt; a MACS&lt;br> syllabus</title>
        
            <link>http://mathforum.org/kb/thread.jspa?messageID=7938244&amp;tstart=0#7938244</link>

        

            <description><![CDATA[<font color="#660066">&gt;Most of the popular modern math textbooks have stopped telling the story. No plot development. No character development. No]]></description>

        

            <jf:creationDate>Dec 17, 2012 1:17:01 PM</jf:creationDate>
            <jf:modificationDate>Dec 17, 2012 1:17:01 PM</jf:modificationDate>
            <jf:author>niederberger@comcast.net</jf:author>
            <jf:replyCount>1</jf:replyCount>
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