Watch the video:
How many pennies is that? How much money is that?
What would be an estimate that is too high? To low?
NOTE: From experience (mine and other teachers), students never ask for the coin specifications. They do, however, ask for pennies and a ruler along with the dimensions of the cube.
When they ask, I give groups/pairs of students a small dixie cup of pennies (about 20 or so) and a ruler.
If students do ask for the dimensions of a penny, they can still be found below.
Share your solution and strategies. Compare your strategies and results.
How reasonable was your estimate?
What might you do differently if you were to do this again?
Penny Cube 1.5: The Weight of it All!
How much does this Penny Cube Weigh?
Penny Cube 2: Invasion of the Quarters!
Quarters would fit nicely in this cube as well. Which would you rather have, a cube of pennies or a cube of quarters?
Penny Cube 3: Return of the Pennies!
If this cube was one cubic foot, how much money would it hold?