Teacher2Teacher

Q&A #1733

Teachers' Lounge Discussion: Long division

_____________________________________
T2T || FAQ || Ask T2T || Teachers' Lounge || Browse || Search || Thanks || About T2T
_____________________________________

View entire discussion
[<< prev] [ next >>]

From: Hemant Yennawar <hpy1@psu.edu>
To: Teacher2Teacher Public Discussion
Date: 2004121612:31:07
Subject: Re: A suggestion on helping students understand


Seems like, 3rd and 4th graders have difficulty in understanding long
division, especially if a zero appears in the quotient. I think the
following two step approach should make it easy.

First the multiplication tables should be taught starting from X 0
(instead of X 1) as in:

2 x 0 = 0             and similarly 3 x 0 = 0
2 x 1 = 1 etc.                      3 x 1 = 3

Then, when we are dividing say 1212 by 3, we can use 0 in the quotient
just as we would have any other digit:

  3) 1 2 1 2 (0 4 0 4
   - 0
    --
     1 2
   - 1 2
     ---
     0 0 1
       - 0
     -----
         1 2
       - 1 2
        ----
         0 0

Letting them subtract 0, at least initially, will remove the mystery
in their minds as to how they get to pull the next digit when the
first digit is smaller than the divisor (3 in this case). In short a
zero in quotient should not be seen any different from say 1, 2 or 3.

Hemant


Post a reply to this message
Post a related public discussion message
Ask Teacher2Teacher a new question


[Privacy Policy] [Terms of Use]

_____________________________________
Math Forum Home || The Math Library || Quick Reference || Math Forum Search
_____________________________________

Teacher2Teacher - T2T ®
© 1994-2014 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Drexel School of Education.The Math Forum is a research and educational enterprise of the Drexel University School of Education.