1. Bell Ringer: Rank the liquids below from least to most expensive
A. Crude Oil
B. Bottled Water
C. Penicillin
D. Blood
E. HP Ink
F. Red Bull
Take guesses…then move on

2. What are some of your guesses
A. Crude Oil
B. Bottled Water
C. Penicillin
D. Blood
E. HP Ink
F. Red Bull
Take guesses…then move on…let them want the answers

3. Rank the 6 liquids from most to least expensive
Cost
A. Crude Oil
$80
B. Bottled Water
$17.99
C. Penicillin
$18.49
D. Blood
$200
E. HP Ink
$63.99
F. Red Bull
$51.15

4. Rank the 6 liquids from most to least expensive
Cost
For
A. Crude Oil
$80
1 Barrel
B. Bottled Water
$17.99
480 oz
C. Penicillin
$18.49
250 ml
D. Blood
$200
500 ml
E. HP Ink
$63.99
84 ml
F. Red Bull
$51.15
24 pack of 8.4 oz cans

5. Rank the 6 liquids from most to least expensive
Cost
For
A. Crude Oil
$80
158,987 ml
B. Bottled Water
$17.99
14195 ml
C. Penicillin
$18.49
250 ml
D. Blood
$200
500 ml
E. HP Ink
$63.99
84 ml
F. Red Bull
$51.15
5962 ml

6. Rank the 6 liquids from most to least expensive
Cost
For
$/ML
A. Crude Oil
$80
158,987 ml
0.0005
B. Bottled Water
$17.99
14195 ml
0.001
C. Penicillin
$18.49
250 ml
0.07
D. Blood
$200
500 ml
0.40
E. HP Ink
$63.99
84 ml
0.76
F. Red Bull
$51.15
5962 ml
0.0086

7. Let’s Look at Graph

8. Today Objective: I CAN solve problems involving rates Agenda: BR Notes
Independent work

9. So I was grocery shopping the other day and …

10. What do you want to know?

11. So, which one is the better deal?

12. What do you need to know?

13. Take 5 minutes and try to find the answer?

14. If you finish
How large would the individual bottle have to be for it to be the better deal?

15. Let’s go over it – Individual bottle
32 ounces
189 cents
cost per ounce

16. Let’s go over it – Package of bottles
160 ounces
699 cents
cost per ounce

17. cost per ounce
cost per ounce

18. Notes Rate: the change in one number relative to another number
Examples: miles per hour, miles per gallon, points per game, rebounds per game, etc
When reading “per” think of every.
Ex: 70 mph, 70 miles every hour

19. How to determine a rate
To determine miles per hour
Rebounds per game

20. Guided Practice
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.

21. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there

22. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3

23. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3

24. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3
Going back 4

25. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3
Going back 4

26. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3
Going back 6 4

27. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3
Going back 6 4 24

28. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate (km/h)
Hours
KMs
Going there 3 24
Going back 6 4

29. Make a table to help
An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there.
Part of trip
Rate
Hours
KMs
Going there 8 3 24
Going back 6 4

30. Independent Work
Complete the problems the back of the worksheet

31. Homework
The standard toilet uses 3.5 gallons of water per flush. New High efficiency toilets use 1.6 gallons of water per flush.
Estimate how much water would be saved if the entire world used high efficiency toilets?
Hint – there are 6,697,254,041 people in the world