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# Minus Times Minus

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File Type
PDF (Acrobat) Document File
1.82 MB   |   5 pages

### PRODUCT DESCRIPTION

This lesson plan (PDF file) helps teachers lead their students into starting proving math facts. It brings two printable sheets that are to be used by the students to order a proof.

This activity is supposed to be carried out in groups. First, students will realize that (-1) . (-1) = +1; afterwards, they will use that result to generalize the idea that (-a) . (-b) = ab.

The teacher may introduce the subject; afterwards s/he just needs to cut the rectangles, shuffle them and split students into groups.

I hope that you have fun with this freebie.

Please, don´t forget to rate this product.Thank you!
Total Pages
5
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