Discussion:  All Topics 
Topic:  Identifying Tools for Your Specific Needs 
Post a new topic to the General Discussion discussion 

Subject:  Walking a Number Line 
Author:  Suzanne 
Date:  Jun 16 2005 
Another need: Being able to apply
>Does anyone have a simple tool or explanation for the
>rule for multiplication and division?
Hi Wanda,
Quite a few years ago Sarah Seastone was writing this
FAQ for Ask Dr. Math:
http://mathforum.org/dr.math/faq/faq.negxneg.html
and she was not convinced that a "negative times a
negative" was a positive. We usually communicated in
email but this time she called me and I explained how
I would have my students physically walk on a number
line that I made with masking tape in the room. She
liked my explanation so much that she wrote this page
to link to from the FAQ:
http://mathforum.org/dr.math/faq/faq.integer.alej.html
Along with developing conceptual understanding, I had
my students practice their arithmetic skills and I
wrote this "lesson plan" page that has links to the
Math Stars shareware software that I used to use:
http://mathforum.org/mathtools/lesson/27/
Suzanne
 
Post a new topic to the General Discussion discussion  