Math teachers, can you help me out with this calculus question?

Discussion in 'Secondary Education' started by Peachyness, Dec 15, 2009.

  1. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    :D Remember, we want people to LIKE math. Overwhelming people usually isn't the best way to do that :lol:
     
  2. TeacherGroupie

    TeacherGroupie Moderator

    Joined:
    May 13, 2005
    Messages:
    29,486
    Likes Received:
    1,017

    Dec 16, 2009

    (agreeably)

    One can do worse, mm, than to paraphrase E.B. White's remark on William Strunk's goal in writing The Elements of Style:

    "Will felt that the reader/math student was in serious trouble most of the time, floundering in a swamp, and that it was the duty of anyone attempting to write English/teach math to drain this swamp quickly and get the reader/student up on dry ground or at least to throw a rope.”
     
  3. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009


    But that is the kind of stuff that made me like math :)
     
  4. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    Yeah, it was linear algebra that did it for me, but, most people would consider too much information frightening.
     
  5. Muttling

    Muttling Devotee

    Joined:
    Sep 19, 2007
    Messages:
    1,095
    Likes Received:
    2

    Dec 16, 2009




    Bob the farmer has a 20 by 50 field. What is the area of his field?




    Simple........f(x) = 20 and then integrate f(y) = 20dY from 0 to 50.



    What's not fun about that?






    [​IMG]
     
  6. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

    [​IMG]
     
  7. CindyBlue

    CindyBlue Cohort

    Joined:
    Mar 24, 2004
    Messages:
    503
    Likes Received:
    11

    Dec 16, 2009

    OK, since no one has posted an answer yet... (grrr!)
    Is it ((2(x+3)^(5/2))/5)-(x+3)^(3/2) ???
    Help me, I'm rusty!
     
  8. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    Almost, but not quite. The last term should be -((x+3)^(3/2))/2
     
  9. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

    I think it should be [​IMG]

    also don't forget your arbitrary constant
     
  10. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    You're right. I haven't been to sleep since 5pm yesterday (it's 7pm now). Serves me right to try to do mental math, while watching mythbusters with my boys and eating chocolate chip cookie dough and surfing the net...all at the same time. Particularly when I'm this tired.
     
  11. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

    [​IMG]
     
  12. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    I need to bookmark that link.
     
  13. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

    yes...it is very nice!
     
  14. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    Drat. It's not a link. It's code. Is there a site that provides the code where one could cut and paste?
     
  15. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

    here is a pdf with a lot of [​IMG] commands
     
  16. TeacherGroupie

    TeacherGroupie Moderator

    Joined:
    May 13, 2005
    Messages:
    29,486
    Likes Received:
    1,017

    Dec 16, 2009

    Which presupposes that one has LaTEX on one's computer, yes?
     
  17. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

    No

    Just type in the LaTeX command after

    Code:
    http://latex.codecogs.com/gif.latex?
    Just like

    Code:
    http://latex.codecogs.com/gif.latex?\int{x}dx
    then display as an image...

    [​IMG]
     
  18. TeacherGroupie

    TeacherGroupie Moderator

    Joined:
    May 13, 2005
    Messages:
    29,486
    Likes Received:
    1,017

    Dec 16, 2009

    What, like in a regular ol' browser window??
     
  19. HMM

    HMM Cohort

    Joined:
    Dec 21, 2004
    Messages:
    694
    Likes Received:
    1

    Dec 16, 2009

  20. mmswm

    mmswm Moderator

    Joined:
    Nov 5, 2007
    Messages:
    5,621
    Likes Received:
    4

    Dec 16, 2009

    http://latex.codecogs.com/gif.latex?/int{x}dx
     

Share This Page

Members Online Now

  1. futuremathsprof,
  2. jadorelafrance,
  3. YoungTeacherGuy,
  4. Linda8416,
  5. Pi-R-Squared
Total: 448 (members: 7, guests: 398, robots: 43)
test