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Math Forum » Discussions » Education » math-teach

Topic: Negative Integers
Replies: 14   Last Post: Mar 25, 1999 8:33 PM

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Joan Reinthaler

Posts: 110
Registered: 12/6/04
Re: Negative Integers
Posted: Mar 15, 1999 4:26 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

Set up a multiplication table with row and column headings running from 10
to -10. Have the kids fill in the positive * positive quadrant and then,
looking just at the patterns in the body of the table, fill in the rest.

Joan Reinthaler
Sidwell Friends School

On Mon, 15 Mar 1999, Kathy Schaw wrote:

> I'm looking for visual models for middle school kids (or good
> explanations!) to show WHY a negative times a negative is a positive.
> Ideas?
>
> Thanks!
>
> Kathy Schaw
> K-8 Mathematics Coordinator
> Williston School District
> Williston, Vermont
> schawk@williston.k12.vt.us
>
>





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