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List of forum topicsenRe: Some important demonstrations on negative numbers > a MACS syllabus
http://mathforum.org/kb/thread.jspa?messageID=7934217&tstart=0#7934217
>From far, far, below ? "So, Clyde, can you briefly sketch your approach to introducing negative numbers and]]>Dec 8, 2012 1:28:03 PMDec 8, 2012 1:28:03 PMgreeno@malei.org0Re: Some important demonstrations on negative numbers > Wallis/Pycior
http://mathforum.org/kb/thread.jspa?messageID=7931623&tstart=0#7931623
On Dec 2, 2012, at 11:28 PM, "Clyde Greeno @ MALEI" <greeno@malei.org> wrote:

> The concept of lines of]]>Dec 3, 2012 8:33:33 AMDec 3, 2012 8:33:33 AMsyscore0Re: Some important demonstrations on negative numbers > Wallis/Pycior
http://mathforum.org/kb/thread.jspa?messageID=7931555&tstart=0#7931555
invoked long before Wallis. In accord with the 17th century confusion]]>Dec 2, 2012 11:28:35 PMDec 2, 2012 11:28:35 PMgreeno@malei.org1Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7931204&tstart=0#7931204
> >I have also provided a precise verbal mapping of the > instructions that reveal the]]>
Dec 2, 2012 9:58:23 PMDec 2, 2012 9:58:23 PMASAPANS2Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7930895&tstart=0#7930895
>I have also provided a precise verbal mapping of the instructions that reveal the logic of why the products of both -ve x -]]>Dec 1, 2012 7:29:32 PMDec 1, 2012 7:29:32 PMniederberger@comcast.net0Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7930797&tstart=0#7930797
On Dec 1, 2012, at 10:25 AM, Joe Niederberger <niederberger@comcast.net> wrote:

> So, Clyde, can you]]>Dec 1, 2012 12:30:19 PMDec 1, 2012 12:30:19 PMsyscore0Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7930789&tstart=0#7930789
>Bottom line: student's common-sensible mathematical encounters with mathematical quantities are their only]]>Dec 1, 2012 10:25:38 AMDec 1, 2012 10:25:38 AMniederberger@comcast.net2Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7930776&tstart=0#7930776
On Nov 30, 2012, at 9:40 PM, Robert Hansen <bob@rsccore.com> wrote:

> But each math teacher should teach]]>Dec 1, 2012 5:37:32 AMDec 1, 2012 5:37:32 AMsyscore0Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7930775&tstart=0#7930775
On Nov 30, 2012, at 10:12 PM, "Clyde Greeno" <clydegreeno@cox.net> wrote:

> "6 + 4i" means the (6,4)]]>Dec 1, 2012 5:31:13 AMDec 1, 2012 5:31:13 AMsyscore0Re: Some important demonstrations on negative numbers
http://mathforum.org/kb/thread.jspa?messageID=7930782&tstart=0#7930782
> > OK thanks Bob. That was a great answer! Please keep > playing along with the next]]>
Nov 30, 2012 10:57:22 PMNov 30, 2012 10:57:22 PMASAPANS0