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 > email@example.com > >