1. Fuel to the Future – Gas Prices of History

2. What is a pipeline?
A pipeline transports goods through a pipe. Most commonly, liquids and gases are sent, but pneumatic tubes using compressed air can also transport solid capsules.

3. What is a water pump?
The pumping of water is a basic and practical technique, far more practical than scooping it up with one’s hand or lifting it in a hand-held bucket.
This is true whether the water is drawn from a fresh source, moved to a needed location, purified, or used for irrigation, washing, sewage treatment, or for evacuation water from an undesirable location.
Regardless of the outcome, the energy required to pump water is an extremely demanding component of water consumption.

4. Round Robin Discuss the assigned topic with your team.
Number 1s will start and continuing clockwise each students will discuss the questions assigned by the teacher.

5. Changing Gas Prices
Discuss the following question with your team using Round Robin.
What do you know about the changing gas prices?

6. Changing Gas Prices
Discuss the following question with your team using Round Robin.
What do you know about the changing gas prices?
Instant Star is Seat 4

7. Changing Gas Prices
Did you know that in 1919 the average price of gas was $0.25 per gallon.
Compare that to $3.61 per gallon, the average price of gas in 2012.

8. Rate vs. Unit Rate
A rate is a comparison of two different units, such as miles per hour, or two different things measured with the same unit, such as cups of concentrate per cups of water.
Rates are called unit rates when they are expressed in terms of 1 unit.

9. Finding Unit Rate EXAMPLE:
In 1962 you could purchase 4 gallons of gas for $1.24. What was the unit rate of gas in 1962?
÷ 4
÷ 4

10. Rally Coach Students sit in pairs.
First Problem: Partner A solves; Partner B coaches and praises.
Next Problem: Partner B solves; Partner A coaches and praises.
Continue solving problems.

11. Finding Unit Rate
With your shoulder partner take the following gas prices and find the unit rate using Rally Coach.
Price of gas is 1972
Price of gas in 1987
Price of gas in 2002
Price of gas in 2008

12. Exit Slip
In 1982 you could purchase 12 gallons of gas for $ How much did one gallon of gas cost in 1982?