Wanted to share this picture of a math BB for solving for the unknown in +/- problem

Discussion in 'Elementary Education' started by Peachyness, Oct 1, 2012.

  1. Peachyness

    Peachyness Virtuoso

    Joined:
    Jul 14, 2006
    Messages:
    6,181
    Likes Received:
    1

    Oct 1, 2012

    never mind
     
  2.  
  3. mollydoll

    mollydoll Connoisseur

    Joined:
    Feb 17, 2009
    Messages:
    1,640
    Likes Received:
    57

    Oct 1, 2012

    Number bonds?

    I was 3 credits short of a math minor, and this is so confusing.

    Is it me, or do modern attempts to simplify math often make it way more complicated that it actually is?
     
  4. Peachyness

    Peachyness Virtuoso

    Joined:
    Jul 14, 2006
    Messages:
    6,181
    Likes Received:
    1

    Oct 1, 2012

    This is singapore math, which is a bit confusing at first but I love it! This is my second year tutoring kids from this school.

    Number bonds is just another name for number families (9+3=12, 3+9=12, 12-3=9, 12-9=3).

    In singapore math, 12 is the whole number and 3 and 9 are the parts. Once you have that figured out, it's easy to solve problems such as:
    ?-5=16 I've had fifth graders when I taught at public school one year who could NOT figure that out. Using singapore method it makes it easy for the kids to know how to solve it and why.
     
  5. mollydoll

    mollydoll Connoisseur

    Joined:
    Feb 17, 2009
    Messages:
    1,640
    Likes Received:
    57

    Oct 1, 2012

    It just feels like a jargon minefield from the outside. I freely admit to knowing next to nothing about teaching math below the high school/college/adult level.

    I'm all for anything to improve numeracy. My seniors freak out if they can't use calculators for simple calculations, like dividing an even number by two (on our last test, density problem).
     
  6. YoungTeacherGuy

    YoungTeacherGuy Phenom

    Joined:
    Oct 21, 2007
    Messages:
    4,225
    Likes Received:
    1,163

    Oct 1, 2012

    I call 'em "Fact Families."
     
  7. TeacherGroupie

    TeacherGroupie Moderator

    Joined:
    May 13, 2005
    Messages:
    29,638
    Likes Received:
    1,097

    Oct 1, 2012

    I'm not so thrilled with calling 12 a "whole number", as distinct from 9 and 3 as "parts", since they're all whole numbers. Teaching terminology that's going to need to be unlearned tends to end badly eventually.
     
  8. czacza

    czacza Multitudinous

    Joined:
    Sep 30, 2001
    Messages:
    24,948
    Likes Received:
    2,096

    Oct 1, 2012

    I've seen the 'part/whole' boxes in Everyday Math.
     
  9. Peachyness

    Peachyness Virtuoso

    Joined:
    Jul 14, 2006
    Messages:
    6,181
    Likes Received:
    1

    Oct 1, 2012

    Hmmm.... You know, I didn't think about that... But I wonder how Singapore math in upper grades handle that terminology then...
     
  10. AZMrs.S

    AZMrs.S Cohort

    Joined:
    Mar 12, 2011
    Messages:
    611
    Likes Received:
    0

    Oct 1, 2012

    So do I! :)
     
  11. mkbren88

    mkbren88 Cohort

    Joined:
    May 31, 2011
    Messages:
    524
    Likes Received:
    15

    Oct 1, 2012

    I don't think they are calling 12 a whole number, rather that that is the "whole" answer or the biggest part. I have used part/part/whole with my first graders in past years and I never said that whole was a whole number and parts were just part numbers. The parts are just smaller parts in finding the "whole" answer.
     
  12. Peachyness

    Peachyness Virtuoso

    Joined:
    Jul 14, 2006
    Messages:
    6,181
    Likes Received:
    1

    Oct 1, 2012

    That's what I meant, actually! :rolleyes:
     
  13. Peachyness

    Peachyness Virtuoso

    Joined:
    Jul 14, 2006
    Messages:
    6,181
    Likes Received:
    1

    Oct 1, 2012

    Right, that's what I'm sure Singapore meant... but TG does bring up a good point about confusing kids later on... I haven't tutored higher than 4th in Singapore so I do not know for sure how it's handled.
     
  14. TeacherGroupie

    TeacherGroupie Moderator

    Joined:
    May 13, 2005
    Messages:
    29,638
    Likes Received:
    1,097

    Oct 1, 2012

    I'm cursed with the knack of seeing stuff like that. Sigh.
     
  15. Peachyness

    Peachyness Virtuoso

    Joined:
    Jul 14, 2006
    Messages:
    6,181
    Likes Received:
    1

    Oct 2, 2012

    That's fine, TG. Where would we be without you.

    I do need to say, though, that of all the math programs I've used, I really do prefer Singapore Math. I love it's mental math component and the way it addresses concepts. I also like it's focus on model drawings to solve word problems.
     
  16. czacza

    czacza Multitudinous

    Joined:
    Sep 30, 2001
    Messages:
    24,948
    Likes Received:
    2,096

    Oct 2, 2012

    This is exactly what is meant....it's set partitioning.
     
  17. amakaye

    amakaye Enthusiast

    Joined:
    Oct 20, 2004
    Messages:
    2,397
    Likes Received:
    4

    Oct 2, 2012

    We use enVision Math, and from what I've seen of Singapore math, the drawings are similar. We call them "bar diagrams" and they are really powerful tools when the kids learn how to use them. They can really see what operation is needed to solve the problem, instead of trying to rely on key words that can often trip them up when they get to more complex problems.
     
  18. TamiJ

    TamiJ Virtuoso

    Joined:
    Sep 18, 2007
    Messages:
    6,778
    Likes Received:
    154

    Oct 2, 2012

    We use Math in Focus which is a version of Singapore. So, we use number bonds too. :)
     

Share This Page

Members Online Now

  1. greendream,
  2. TeacherNY,
  3. MrsC,
  4. EdEd
Total: 454 (members: 5, guests: 424, robots: 25)
test