| $ Store Activity
Name: |
Squirt!
|
| Concepts / Skills
addressed: |
measurement, multiplication
problem formulation
|
| Approximate Grade
Range: |
4th - 8th ?
|
| Materials: |
Soap dispenser, measuring device
for liquid volume
|
| The General Idea:
|
How much does it cost to keep
the school in hand soap? Use the soap dispenser to squirt out a
full ounce of soap. How many squirts does it take? How many
squirts of soap does the average student use when they wash their
hands? (I know, I'm making a big assumption. Maybe this can
lead to a mini lesson on personal hygiene.) How many people wash
their hands in an average hour? (Are all of the hours the same in
terms of how many people use the restroom?) Use this information
to figure out how many people it takes to go through an ounce of soap,
how many ounces of soap are used each day?
|
Extensions:
|
Buy a bottle of soap with a pump
dispenser from the grocery store. Does their pump dispense
more or less with each pump than the dollar store
dispenser? What might be the reasons for this? (What
is the manufacturer trying to sell in each case?)
|
| Links: |
|
Author:
|
Mark Roddy
|
