Wednesday, March 6, 2013

Tuesday March 5th - Investigation 2.1

Goals for the day:

  • Students will be developing algorithms for adding integers.
  • Students wil model addition of integers using distance/ direction on a number line and chip model.
The main algorithms discussed today were the following:
When adding integers:
1. If the addends have the same sign, combine and use the same sign.
2. If the addends have opposite signs, cancel and take the sign of the number furthest from zero (largest absolute value).

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