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Topic: Sixth grade math
Replies: 115   Last Post: Feb 15, 2010 5:36 AM

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achille

Posts: 575
Registered: 2/10/09
Re: Sixth grade math
Posted: Jan 27, 2010 1:45 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On Jan 27, 1:43 pm, Andrew Usher <k_over_hb...@yahoo.com> wrote:
> On Jan 26, 9:59 pm, "Ostap S. B. M. Bender Jr."
>
> <ostap_bender_1...@hotmail.com> wrote:

> > But that shouldn't detract from us trying to figure out how to explain
> > the concept of a 'function' to those students who CAN get it.

>
> Well, students like me would get it from simply reading about it.
>

> > How about this: function assigns a unique value to every element/
> > member in the domain. For example, for the domain of students: a
> > function that assigns every student in the class their grade, another
> > - their height, another - their age in months/weeks/days), etc.

>
> That's basically correct. However, it's still more useful, in my
> opinion, to think of a function as a sort of procedure. I know that
> 'function' in modern math means any arbitrary correspondence, but in
> practice all functions we can actually work with are procedures.
>
> Andrew Usher


How about the view that a function is just a bunch of arrows
from its domain to co-domain with the limitation that on each
point in the domain, there is one and only one arrow pointing
out. eg.

In a ice-cream store with 3 favours of ice-cream:
vanilla, chocolate and strawberry, the price function of
the ice-cream cones can be viewed as 3 different black
arrows sticking out of 3 ice-cream cones (one for each
favour) with a little price tag attached at end.

Different functions corresponding to different types of arrows.
eg. on each of the ice-cream cones above, one can stick white
arrows on them with tags at end saying how many coupon stamps
they can collect for buying that type of ice-cream cone.

I think the key idea for kids is to relate whatever concept
to something they encounter/like everyday.










Date Subject Author
1/25/10
Read Sixth grade math
rehamkcirtap@gmail.com
1/25/10
Read Re: Sixth grade math
amzoti
1/25/10
Read Re: Sixth grade math
Andrew Usher
1/25/10
Read Re: Sixth grade math
amzoti
1/25/10
Read Re: Sixth grade math
Robert H. Lewis
1/25/10
Read Re: Sixth grade math
rehamkcirtap@gmail.com
1/25/10
Read Re: Sixth grade math
rehamkcirtap@gmail.com
1/26/10
Read Re: Sixth grade math
Virgil
1/26/10
Read Re: Sixth grade math
Porky Pig Jr
1/26/10
Read Re: Sixth grade math
Bill Dubuque
1/26/10
Read Re: Sixth grade math
Dave L. Renfro
1/26/10
Read Re: Sixth grade math
Robert Israel
1/26/10
Read Re: Sixth grade math
Porky Pig Jr
1/26/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
1/27/10
Read Re: Sixth grade math
Andrew Usher
1/27/10
Read Re: Sixth grade math
Andrew Usher
1/28/10
Read Re: Sixth grade math
Frederick Williams
1/27/10
Read Re: Sixth grade math
achille
1/27/10
Read Re: Sixth grade math
hdbanannah
1/27/10
Read Re: Sixth grade math
rehamkcirtap@gmail.com
1/28/10
Read Re: Sixth grade math
T.H. Ray
1/28/10
Read Re: Sixth grade math
umumenu@gmail.com
1/28/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
1/28/10
Read Re: Sixth grade math
Frederick Williams
1/28/10
Read Re: Sixth grade math
Bill Dubuque
1/31/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
1/31/10
Read Re: Sixth grade math
Bill Dubuque
2/1/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/1/10
Read Re: Sixth grade math
T.H. Ray
2/1/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/1/10
Read Re: Sixth grade math
T.H. Ray
2/2/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/2/10
Read Re: Sixth grade math
T.H. Ray
2/2/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/3/10
Read Re: Sixth grade math
T.H. Ray
2/4/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/5/10
Read Re: Sixth grade math
T.H. Ray
2/6/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/6/10
Read Re: Sixth grade math
Frederick Williams
2/6/10
Read Intuitionistic ignorance
victor_meldrew_666@yahoo.co.uk
2/9/10
Read Re: Intuitionistic ignorance
ostap_bender_1900@hotmail.com
2/10/10
Read Ostap Bender: pederast nob?
victor_meldrew_666@yahoo.co.uk
2/10/10
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ostap_bender_1900@hotmail.com
2/11/10
Read Ostap Bender: broaden pest?
victor_meldrew_666@yahoo.co.uk
2/12/10
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ostap_bender_1900@hotmail.com
2/12/10
Read Ostap Bender: Pernod beast?
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2/12/10
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ostap_bender_1900@hotmail.com
2/12/10
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2/12/10
Read Brenda Poste
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2/12/10
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ostap_bender_1900@hotmail.com
2/12/10
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ostap_bender_1900@hotmail.com
2/13/10
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victor_meldrew_666@yahoo.co.uk
2/13/10
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2/14/10
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ostap_bender_1900@hotmail.com
2/12/10
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2/13/10
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2/13/10
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2/13/10
Read Re: Bad Peter Son
victor_meldrew_666@yahoo.co.uk
2/6/10
Read Re: Sixth grade math
Marshall
2/3/10
Read Re: Sixth grade math
Jack Markan
2/4/10
Read Re: Sixth grade math
T.H. Ray
2/4/10
Read Re: Sixth grade math
rehamkcirtap@gmail.com
2/5/10
Read Re: Sixth grade math
T.H. Ray
2/5/10
Read Re: Sixth grade math
Jack Markan
2/5/10
Read Re: Sixth grade math
T.H. Ray
2/5/10
Read Re: Sixth grade math
Jack Markan
2/5/10
Read Re: Sixth grade math
T.H. Ray
2/6/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/6/10
Read Re: Sixth grade math
T.H. Ray
2/6/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/7/10
Read Re: Sixth grade math
T.H. Ray
2/8/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/8/10
Read Re: Sixth grade math
T.H. Ray
2/10/10
Read Re: Sixth grade math
Michael Stemper
2/10/10
Read Re: Sixth grade math
T.H. Ray
2/10/10
Read Re: Sixth grade math
victor_meldrew_666@yahoo.co.uk
2/10/10
Read Re: Sixth grade math
T.H. Ray
2/10/10
Read Re: Sixth grade math
T.H. Ray
2/11/10
Read Re: Sixth grade math
victor_meldrew_666@yahoo.co.uk
2/11/10
Read Re: Sixth grade math
T.H. Ray
2/8/10
Read Re: Sixth grade math
Marshall
2/8/10
Read Re: Sixth grade math
T.H. Ray
2/8/10
Read Re: Sixth grade math
Marshall
2/9/10
Read Re: Sixth grade math
T.H. Ray
2/8/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/9/10
Read Re: Sixth grade math
T.H. Ray
2/9/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/8/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/9/10
Read Re: Sixth grade math
T.H. Ray
2/9/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/10/10
Read Re: Sixth grade math
T.H. Ray
2/10/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/11/10
Read Re: Sixth grade math
T.H. Ray
2/11/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/12/10
Read Re: Sixth grade math
T.H. Ray
2/12/10
Read Re: Sixth grade math
Brian Q. Hutchings
2/12/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/12/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/13/10
Read Re: Sixth grade math
victor_meldrew_666@yahoo.co.uk
2/14/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/15/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/12/10
Read Re: Sixth grade math
Brian Q. Hutchings
2/9/10
Read Re: Sixth grade math
Brian Q. Hutchings
2/9/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/10/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/10/10
Read Re: Sixth grade math
Brian Q. Hutchings
2/10/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
2/10/10
Read Re: Sixth grade math
ostap_bender_1900@hotmail.com
1/28/10
Read Re: Sixth grade math
Frederick Williams
1/28/10
Read Re: Sixth grade math
Jack Markan
1/28/10
Read Re: Sixth grade math
Dave L. Renfro
1/28/10
Read Re: Sixth grade math
Porky Pig Jr
1/28/10
Read Re: Sixth grade math
Jack Markan
1/29/10
Read Re: Sixth grade math
Michael Stemper
1/29/10
Read Re: Sixth grade math
Jack Markan
1/28/10
Read Re: Sixth grade math
Jack Markan

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