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Topic: common core geometry proofs
Replies: 7   Last Post: Jul 15, 2014 12:58 PM

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L.C.

Posts: 133
Registered: 12/3/04
Re: common core geometry proofs
Posted: Jul 12, 2014 6:44 PM
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This is what I am worried about?
The geometry curriculum did not take much out..(just logic...graphing
parabolas....right??)


It added Trig and Transformations with proofs..more constructions...How
are we going to have enough time to cover everything??  
Looking at the modules, I do not see them giving enough days on
Euclidean Geometry proofs..Those proofs take so much time !! You can't
just jump into them.. 

Any thoughts??


Lisa Clark

On Sat, Jul 12, 2014 at 12:26 PM, Bruce Waldner wrote:

Way back in 1977, when NYSED allowed variances for Regents Examinations
and the current curriculum was Math 9  (elementary Algebra), Math 10
(geometry), and Math 11 (algebra Two with Trigonometry), taught  a
Transformation Geometry Course to average and below average students
where proofs were based on isometrics (rigid motions). Students had no
more difficulty with proofs than they did in the state's Geometry
course. They learned it that way. I think you are panicking because it
is not the way you are used to doing it. Proofs through transformations
are really no more difficult just different. Most students do have
problems with proof of any style.



Sent from my iPad@

On Jul 12, 2014, at 10:33 AM, Tony George <tgeorge@atticacsd.org
<mailto:tgeorge@atticacsd.org> > wrote:



I totally agree.  
By the way are indirect proofs in the CC Geo.?


On Fri, Jul 11, 2014 at 4:18 PM, <JFish@csufsd.org
<mailto:JFish@csufsd.org> > wrote:


I totally agree with Howard!  One would only have to look at the
statistics of the results on Euclidean proofs and coordinate/analytic
proofs to see that the students are sufficiently challenged by them
already.  If only SED would read these posts and allow a little common
sense to prevail !!!




Sincerely,
Jim Fish
Mathematics Department Chair
JFK High School
305 Cayuga Creek Road
Cheektowaga, NY 14227
(716)897-7800 ext. 1120 <tel:%28716%29897-7800%20%20ext.%201120>


"We the willing, led by the unknowing,
are doing the impossible for the ungrateful.
We have done so much for so long, with so
little, we are now qualified to do anything
with nothing."

......Mother Theresa of Calcutta

-----owner-nyshsmath@mathforum.org
<mailto:owner-nyshsmath@mathforum.org> wrote: -----

To: nyshsmath@mathforum.org <mailto:nyshsmath@mathforum.org>
From: Howard Levine
Sent by: owner-nyshsmath@mathforum.org
<mailto:owner-nyshsmath@mathforum.org>

Date: 07/11/2014 03:17PM
Subject: common core geometry proofs

I think the emphasis in the new core on proofs by transformations is
excessive.  I think it's hard enough for average students to remember
the Euclidean postulates and theorems that are necessary for the
traditional statement and reason proofs that are STILL required in the
core, but to add the complicated wording of the transformation
postulates and theorems is just too much.  Euclidean proofs and proofs
by analytic geometry are enough!

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Anthony George
Attica High School
3338 East Main St.
Attica, NY 14011
585-591-0400ext.1117


Math Dept. Chair




<div style="font-family:Verdana">This is what I am worried about?</div><div style="font-family:Verdana">The geometry curriculum did not take much out..(just logic...graphing parabolas....right??)</div><div style="font-family:Verdana"><br></div><div style="font-family:Verdana">It added Trig and Transformations with proofs..more constructions...How are we going to have enough time to cover everything?? &nbsp;<br><br>Looking at the modules, I do not see them giving enough days on Euclidean Geometry proofs..Those proofs take so much time !! You can't just jump into them..&nbsp;</div><div style="font-family:Verdana"><br><br>Any thoughts??</div><div style="font-family:Verdana"><br></div><div style="font-family:Verdana">Lisa Clark<br><br><br><br>On Sat, Jul 12, 2014 at 12:26 PM, Bruce Waldner wrote:<br><br><blockquote style="border-left: 2px solid rgb(136, 136, 136); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex"><div>Way back in 1977, when NYSED allowed variances for Regents Examinations and the current curriculum was Math 9 &nbsp;(elementary Algebra), Math 10 (geometry), and Math<span style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">&nbsp;11 (algebra Two with Trigonometry), taught &nbsp;a Transformation Geometry Course to average and below average students where proofs were based on isometrics (rigid motions). Students had no more difficulty with proofs than they did in the state's Geometry course. They learned it that way. I think you are panicking because it is not the way you are used to doing it. Proofs through transformations are really no more difficult just different. Most students do have problems with proof of any style.</span></div><div><span style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "><br></span></div><div><span style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "><br></span></div><div>Sent from my iPad@</div><div><br>On Jul 12, 2014, at 10:33 AM, Tony George &lt;<a href="mailto:tgeorge@atticacsd.org" _djrealurl="mailto:tgeorge@atticacsd.org">tgeorge@atticacsd.org</a>&gt; wrote:<br><br></div><div></div><blockquote type="cite"><div><div dir="ltr">I totally agree. &nbsp;<div>By the way are indirect proofs in the CC Geo.?</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Jul 11, 2014 at 4:18 PM, <span dir="ltr">&lt;<a href="mailto:JFish@csufsd.org" _djrealurl="mailto:JFish@csufsd.org" target="_blank">JFish@csufsd.org</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><font face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif"></font><div>I totally agree with Howard! &nbsp;One would only have to look at the statistics of the results on Euclidean proofs and coordinate/analytic proofs to see that the students are sufficiently challenged by them already. &nbsp;If only SED would read these posts and allow a little common sense to prevail !!!</div>
<div><br></div><div><br><br>Sincerely, <br><br>Jim Fish<br><br>Mathematics Department Chair<br>JFK High School<br>305 Cayuga Creek Road<br>Cheektowaga, NY 14227<br><a href="tel:%28716%29897-7800%20%20ext.%201120" _djrealurl="tel:%28716%29897-7800%20%20ext.%201120" value="+17168977800" target="_blank">(716)897-7800 ext. 1120</a><br>
<br>"We the willing, led by the unknowing, <br>are doing the impossible for the ungrateful. <br>We have done so much for so long, with so <br>little, we are now qualified to do anything <br>with nothing."<br><br>
......Mother Theresa of Calcutta</div><br><br><font color="#990099">-----<a href="mailto:owner-nyshsmath@mathforum.org" _djrealurl="mailto:owner-nyshsmath@mathforum.org" target="_blank">owner-nyshsmath@mathforum.org</a> wrote: -----</font><div style="padding-left:5px"><div style="padding-right:0px;padding-left:5px;border-left:solid black 2px">
To: <a href="mailto:nyshsmath@mathforum.org" _djrealurl="mailto:nyshsmath@mathforum.org" target="_blank">nyshsmath@mathforum.org</a><br>From: Howard Levine <u></u><br>Sent by: <a href="mailto:owner-nyshsmath@mathforum.org" _djrealurl="mailto:owner-nyshsmath@mathforum.org" target="_blank">owner-nyshsmath@mathforum.org</a><br>
Date: 07/11/2014 03:17PM<br>Subject: common core geometry proofs<br><br><div><font face="Courier New,Courier,monospace" size="3">I think the emphasis in the new core on proofs by transformations is excessive. &nbsp;I think it's hard enough for average students to remember the Euclidean postulates and theorems that are necessary for the traditional statement and reason proofs that are STILL required in the core, but to add the complicated wording of the transformation postulates and theorems is just too much. &nbsp;Euclidean proofs and proofs by analytic geometry are enough!<br>
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</font></span></blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr">Anthony George<div>Attica High School</div><div>3338 East Main St.</div><div>Attica, NY 14011</div><div>585-591-0400ext.1117</div>
<div>Math Dept. Chair</div></div>
</div>
</div></blockquote></blockquote></div>



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