19c – Volume and Surface Area of Spheres

Jumbo Giant Gumball Machine. For real.

I think our school should buy

this.

Questions we can ask:

How many gumballs fit in the machine? How many fewer gumballs would you

need if you used the “smaller inner globe”?

How much would it cost to fill the gumball machine with and without the “smaller inner globe”?

How many gumballs would you have to sell to make a profit?

What is the probability of getting a blue gumball?

Step 1:

What information would be useful in figuring this out?

What factors may affect your answer’s accuracy?

What is a guess for ______________ that is too low?

What is a guess for ______________ that is too high?

The number of gumballs it holds:Drumroll please.