tag:blogger.com,1999:blog-5964889903484807623.post4271193207520543172..comments2021-05-11T07:20:00.591-07:00Comments on Questions?: Similar Triangles and AlgebraDavid Coxhttp://www.blogger.com/profile/06277427735527075341noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5964889903484807623.post-45606783287226344012011-03-09T05:20:48.773-08:002011-03-09T05:20:48.773-08:00I'm curious as well to the connection. Could ...I'm curious as well to the connection. Could you email him? I clicked on one of his references in the handbook and got to his homepage, <br /><br />http://math.berkeley.edu/~wu/<br /><br />, which lists his email. Or if you're really daring, you could CALL him.<br /><br />I double dog dare you.<br /><br />Paul Hawking<br />Blog:<br />The Challenge of Teaching Math<br />Latest post:<br />Teaching factoring quadratics when a>1<br />http://challenge-of-teaching-math.blogspot.com/2011/03/teaching-factoring-quadratics-when.html?https://www.blogger.com/profile/09000980455095316183noreply@blogger.comtag:blogger.com,1999:blog-5964889903484807623.post-30772872524668320372011-03-08T20:34:13.651-08:002011-03-08T20:34:13.651-08:00This comment has been removed by the author.Unknownhttps://www.blogger.com/profile/09061225929769097049noreply@blogger.comtag:blogger.com,1999:blog-5964889903484807623.post-33009795549078390052011-03-08T17:30:49.424-08:002011-03-08T17:30:49.424-08:00I think Wu speaks like many mathematicians who thi...I think Wu speaks like many mathematicians who think that K-12 math should be taught like graduate mathematics. Instead of doing mathematics like mathematicians do math. Looking at examples of similar figures and non-similar figures will lead to informal descriptions. Solving problems will lead to the nead of a more robust definition. Thinking like mathematicians will lead to forging a precise definition.<br /><br />To me, slope is related through the power of ratio. Since both similarity and slope are examples of the extraordinary power of a constant ratio, you can set up many examples where the ideas overlap.John Goldenhttps://www.blogger.com/profile/18212162438307044259noreply@blogger.comtag:blogger.com,1999:blog-5964889903484807623.post-14467900454423149762011-03-08T11:25:19.102-08:002011-03-08T11:25:19.102-08:00What do you suppose Wu is getting at, then?What do you suppose Wu is getting at, then?David Coxhttps://www.blogger.com/profile/06277427735527075341noreply@blogger.comtag:blogger.com,1999:blog-5964889903484807623.post-30799457915576930722011-03-08T10:01:01.340-08:002011-03-08T10:01:01.340-08:00I think that similar triangles and slopes of lines...I think that similar triangles and slopes of lines are closely related, but that there is no intrinsic reason to believe that one must be learned before the other.Anonymousnoreply@blogger.com