1. Bellringer 7th Grade Benchmark question #15
Maintenance Sheet 7.2 due on Thursday
Adding & Subtracting Integer Quiz (Wednesday)
First notebook check will be August 23, make sure your notebook is organized.
Bellringer 7th Grade Benchmark question #15
Volunteer Lunch & Learn (tutoring) on Wednesday 8/17: sign sheet on the wall by TV.

2. Learning Target: Adding & Subtracting Integers
Draw a
number line
-10 to 10
Number the vertical number line using three different colors
different colors
one color for the positive numbers,
one color for the negative
numbers, and another color for zero.
Learning Target: Adding & Subtracting Integers

3. Using the index card, Draw a hot air balloon and an arrow
Learning Target: Adding & Subtracting Integers

4. Learning Target: Adding & Subtracting Integers

5. Learning Target: Adding & Subtracting Integers
Gas bags
+up
“We are going to write bags of gas as positive numbers, for example 3 bags of gas will be expressed as +3 and 10 bags of gas will be expressed as +10.
Sand bags -down
Bags of sand will be expressed as negative numbers, for example 5 bags of sand will be expressed as (-5) and 7 bags of sand will be expressed as (-7).”
Learning Target: Adding & Subtracting Integers

6. Here is an example: -3 - (-4) = ?
The balloon starts at -3 (think of the balloon being 3 feet below sea level or 3 feet below the level of a canyon) and you take off 4 sand bags.
Now, think about what happens to a balloon if you remove sand bags, the balloon gets lighter. So, the balloon would go up 4 units
Here is a similar example: -3 +4=?

7. Here is an example: 9 + (-5)=? Here is an example: 9-(+5)=?
You are putting on 5 sand bags (negative) produces the same result as taking off 5 hot air bags (positive).

8. Learning Target: Adding & Subtracting Integers

9. Learning Target: Adding & Subtracting Integers