Negative number reasoning with patterns

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3 Responses

  1. Steve Croft says:

    Always a tricky topic to teach. I like this approach because it is simple and uncluttered.

  2. Shaun says:

    I agree that seeing the pattern form is a useful way of teaching how to work with negatives. It might also be a useful point to demonstrate that 2 + 2 is really (+2) + (+2), and the simplification causes the signs to combine. With this angle, that might help to explain why (+2) + (-2) winds up being 2 – 2.

  3. Sharon says:

    This is an excellent method to teaching adding and subtracting negative numbers. It also cements that positive numbers are in fact directed numbers yet as a convention we don’t write the + sign. Brilliant thanks for posting this.