Date: Sat, 1 Apr 2006 22:25:38 +0200 From: Danny Pansters <danny@ricin.com> To: freebsd-chat@freebsd.org Subject: Re: Your ShillerMath Tidbit Message-ID: <200604012225.38947.danny@ricin.com> In-Reply-To: <7.0.1.0.2.20060331230224.098779f8@lariat.org> References: <20060401032818.27086.qmail@borg.phpwebhosting.com> <7.0.1.0.2.20060331230224.098779f8@lariat.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Saturday 01 April 2006 08:04, Brett Glass wrote:
> Why is this spam on the list?
>
> Also, it's worth noting that the author gives the wrong answer to his
> sample SAT question below. The only correct answer is 4 (D), not 5 (E).
> I wouldn't pay $29.95 for a book from an author who couldn't give the
> correct answer to his own sample problem!
>
> --Brett
It probably requires Shiller transformations to be applied :)
> At 02:12 PM 3/31/2006, Larry Shiller wrote:
> > ShillerMath Tidbits: Getting out of the starting gate
> >
> > [parentzone.gif]
> > What to do when you have no idea what to do!
> >
> > A 1,000 mile journey begins with but a single step...
> > Have you ever looked at an SAT question and felt like saying, "Help!
> > I'm clueless!"? You're not alone. Even the brightest and best have
> > felt the same way. Should this ever happen to you, this sure-fire tip
> > will get you on your way to math success.
> > An overwhelming problem typically has a lot of information to process,
> > and it's not clear how all that information leads to the answer. So
> > instead of worrying about how to get the answer, start with the answer
> > and work backwards. Let's see how this might work using a sample
> > multiple-choice SAT test question:
> > If x and y are integers and 5x + 2y = 13, which of the following could
> > be the value of y?
> > A. 1
> > B. 2
> > C. 3
> > D. 4
> > E. 5
> > This problem falls into an interesting branch of mathematics called
> > Diophantine Equations.
> > Since this is a multiple-choice problem, one strategy is to try each
> > answer to see what happens. For example, if y=1 (choice A), 5x + 2(1)
> > = 13; 5x = 11; x = 11/5. But x must be an integer ("If x and y are
> > integers..."). So choice A is incorrect.
> > If y=2 (choice B), 5x + 2(2) = 13; 5x = 9; x = 9/5. But again, x must
> > be an integer so choice B is incorrect.
> > After repeating this process for choices C, D, and E, we find that
> > only choice E satisfies the condition that x is an integer.
> > If the problem requires a student produced response, you know the
> > answer will be a number because only numbers can be answers to student
> > produced responses: You may try the strategy of picking a number (pick
> > a number, any number!) and working backwards as you did above. As you
> > work through the problem you'll likely find a way to get the correct
> > answer.
> > By working backwards you always have a place to start. And that makes
> > it more likely you'll have a happy ending!
> >
> > In the next ShillerMath Tidbit we have another installment in our math
> > biography series. In the meantime help yourself to [1]Free Downloads
> > on our web site!
> > [funnybone.gif]
> >
> > They Said It...
> > "There is no royal road to geometry." Euclid
> > "Mathematics is the queen of the sciences and number theory is the
> > queen of mathematics." Carl Friedrich Gauss
> > "...the greater part of our happiness or misery depends on our
> > dispositions and not on our circumstances." Martha Washington
> >
> > I hope you enjoyed this short math break.
> > Sincerely,
> > [lssig.jpg]
> > Larry Shiller
> > Publisher
> > Been thinking about ShillerMath but just wanted to start with just one
> > year's worth of material? [2]YES! Get individual lesson plan books for
> > as low as $29.95!
> > Did you enjoy this Tidbit? Please tell your friends, family, and
> > fellow parents, teachers, librarians, and local homeschool groups.
> > Thank you for [3]spreading the word!
> > _________________________________________________________________
> >
> > What is ShillerMath?
> > ShillerMath publishes research-based homeschool math curriculum,
> > music, and manipulatives for ages 4-12, with beautifully designed
> > lessons, diagnostic tests with answer keys, catchy math songs, and
> > Montessori-based manipulatives. No Montessori or math knowledge is
> > required and there's zero lesson preparation - just read what's in
> > quotes and you're good to go! Students using this approach
> > consistently outperform their peers. Larry Shiller, ShillerMath
> > founder and President, has a math degree from MIT. The ShillerMath
> > curriculum includes authoritative materials and lessons used by
> > thousands of Montessori schools worldwide and is the math curriculum
> > of choice for thousands of homeschoolers nationwide. Visit the
> > [4]ShillerMath site for all the details on this proven and amazingly
> > effective product.
> >
> > If you no longer wish to receive ShillerMath emails please [5]click
> > here to unsubscribe.
> >
> > ShillerMath never sells or rents emails:
> > [6]http://www.shillermath.com/privacy_popup.php
> >
> >References
> >
> > 1.
> > http://www.shillermath.com/page1.php?em=freebsd-chat@freebsd.org&src=tidb
> >it20060401 2.
> > http://www.shillermath.com/page1.php?src=tidbit20060401&email=freebsd-cha
> >t@freebsd.org&url=cart.php 3.
> > http://www.shillermath.com/page1.php?src=tidbit20060401&em=freebsd-chat@f
> >reebsd.org&url=recommendnews.php 4.
> > http://www.shillermath.com/page1.php?src=tidbit20060401&em=freebsd-chat@f
> >reebsd.org 5.
> > http://www.shillermath.com/unsubscribe.php?Unsubscribe=freebsd-chat@freeb
> >sd.org 6.
> > http://www.shillermath.com/page1.php?src=tidbit20060401&em=freebsd-chat@f
> >reebsd.org&url=privacy_popup.php
> > _______________________________________________
> >freebsd-chat@freebsd.org mailing list
> >http://lists.freebsd.org/mailman/listinfo/freebsd-chat
> >To unsubscribe, send any mail to "freebsd-chat-unsubscribe@freebsd.org"
>
> _______________________________________________
> freebsd-chat@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-chat
> To unsubscribe, send any mail to "freebsd-chat-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200604012225.38947.danny>