Objective: Today you will select and use appropriate operations to solve problems and justify solutions with integers.
Vocabulary: integer, positive, negative, opposite, zero pairs or canceling
You will learn integer operations and solve problems.
After the lesson you will be able to say "I Know":
1. That the sum of one and a negative one is zero (a zero pair)?
2. How to use integer chips or a number line to find the solution to an integer addition problem?
3. How to use a vertical number line, like a thermometer, to find integer sums in a problem situation?
In stations you will work problems at the following web sites:
Using a Number Line
Using a Number Line #2
Using a Number Line Closure answer the question on the closure sheet
Using Integer Chips
Using Integer Chips #2
Using Integer Chips Closure answer the question on the closure sheet
Discussion: When is it possible to add two negatives and get a negative answer?
Closure: Explain in complete sentences how to add integers using a number line?
Think: How many yards must be gained after a loss of 3 yards for a total gain of 10 yards?
Is addition the same as subtraction? When? Can you write a rule describing when addition behaves like subtraction?