[Numeracy 173] Re: The double negative language-math link

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Susan Jones SUJones at parkland.edu
Mon Feb 15 19:08:49 EST 2010


http://opinionator.blogs.nytimes.com/2010/02/14/the-enemy-of-my-enemy/


Seems the negatives are newsworthy :) The comments have some
interesting ideas, too.

Susan Jones
Academic Development Specialist
Center for Academic Success
Parkland College
Champaign, IL 61821
217-353-2056
sujones at parkland.edu
Webmastress,
http://www.resourceroom.net
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>>> Charlie <charlie at durangoaec.org> 2/15/2010 3:36 PM >>>

I draw a horizontal line and call it ground level. A pile of dirt can

be x feet above ground level (positive). A hole in the ground can be x

feet below ground level (negative). You can add a positive value by
filling the hole and/or making the pile taller. You can add a negative

integer by shoveling off of the pile and/or digging deeper.
Subtraction problem are converted to addition. For subtraction, the
mantra is "cross the line [change from subtraction to addition] and
change the sign [of the second integer]"

Charlie Love
GED/ESOL Instructor
Durango Adult Education Center
701 Camino del Rio, Room 301
Durango, CO 81301
phone: 970-385-4354 ext. 110
fax: 970-385-7968
charlie at durangoaec.org

On Feb 15, 2010, at 7:05 AM, mysbooks at aol.com wrote:


> Sea level, stocks, money; loans, home equity-especially relevant

> when mortgages are "under water".

>

>

>

> -----Original Message-----

> From: Denney, Brooke <denneyb at cowley.edu>

> To: numeracy at nifl.gov

> Sent: Thu, Feb 11, 2010 10:17 pm

> Subject: [Numeracy 151] The double negative language-math link

>

> Michael:

>

> I disagree with your statement that, “negatives carry meaning in

> mathematical, but not physical (reality) terms”; after all, it is



> winter in the Midwest and negative values mean something in my

> reality when we are talking about wind chill factors and really cold



> temperatures (perhaps living in a really warm climate you may have

> forgotten). Also, negative numbers are used when discussing the

> grade of the road (i.e., positive or negative grade). Does anyone

> else have examples of negative numbers used in reality?

>

> -Brooke

>

>

>

>

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