Aim: How can we predict whether a sum will be positive, negative, or zero?
Homework: Txtbk pp.32-32 Problem 2.1 A-E
Do Now: Use integer chips to model each.
1. -5 + 3 = 2. -4 + (-9)=
Classwork: Today's class was about discovering the addition algorithm. The past few lessons, students have been using integer chips and number lines to find values of positive and negative numbers. Today, we bridged that understanding with a more abstract addition "rule."
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