1. 1.2 Adding Integers with Different Signs

2. Remember the rules for number lines:
Step 1: mark your first term on the number line
Step 2: Move the number of spaces in the appropriate direction of the second term
positive move UP or to the RIGHT
negative move DOWN or the LEFT
Step 3: where you end is the sum- put an arrow
DO THE SAME THING! WATCH YOUR SIGNS

4. Counters Remember that a yellow counter represents a +1
Remember that a red counter represents a -1
Model 3+ (-2)
start with 3 positive counters to represent 3
Add 2 negative counters to represent -2
Form zero pairs= the value of a zero pair is 0 and is formed by 1 yellow and 1 red counter
We have 2 zero pairs so we are left with 1 positive counter so 3 + (-2) = 1

6. Adding Integer Rules

7. Practice