Download - Environmental Footprint Teachable Unit By Elizabeth, Nancy, Mike, Nathan, Fallyn June 16-18, 2008
BrainstormingEngage
media3.guzer.com/pictures/homers_brain.jpg
How do Humans impact the environment?
Impact of Car Purchasing Choiceteachable tidbit
Learning Objective: Analyzing the environmental impact of
purchasing a car through graphing data
http://girtby.net/images/homer-car.gif
Exploration Activity
Economic comparison of carsHow would you decide which car to buy?
InstructionsCreate a line graph for your given data set
comparing costs in thousands of dollars (Y-axis) versus time in years (X-axis)
Graphing Data (Example)
CAR PURCHASE PRICE
MILES PER GALLON
A $16,000 23
Assume:
Gas Price= $4. 50 per gallon
Drive 12,000 miles per year
Graphing DataAssume: Gas Price= $4. 50 per gallon Drive 12,000 miles per year
CAR PURCHASE PRICE
MILES PER GALLON
B $23,000 44
C $10,000 20
D $7,000 14
ResultsExplain
Which car would you pick? Why?
Car A (Green Line): C(t)=2355t+16,000
Car B (Red Line): C(t)= 1230t+23,000
Car C (Blue Line): C(t)=2700t+10,000
Car D (Yellow Line): C(t)=3855t+7,000
price
Time
Environmental StatisticsElaborate
CAR CARBON EMISSIONS PER YEAR (Kg)
Scion tC 4538.8
Civic Hybrid 2485.6
Mustang 5220.0
Jeep 7457.1