
CHAPTER 4
PIZZA PARTY
INTRODUCTION
Your class is organizing a pizza party. Your teacher wants you
and your classmates to be responsible for choosing the food and calculating
how much it will cost. You have a budget so don't overspend!
TASK
Working in a group, decide on a pizza party
order. There are 28 students in your class and you have $75.00 to spend.
Estimate the amount of food you will buy and how much it will cost. After
you have finalized your order, calculate the total cost and how much change
you will get back.
MATERIALS
pencil and paper
calculator (optional)
base ten blocks (optional)
PROCESS
 In your group, discuss what food and drink you might want to order.
How much do you think you will need? Consider the following:
 how many slices each person will eat
 if you will need to order drinks or have classmates bring them
from home
 As a group, work out a rough order. Use an estimation strategy to
decide how much food you will buy. Show your work and justify your choice
of estimation strategy.
 Go to one of these pizza shop Web sites:
Pizza
Pizza
241
Pizza
 Based on the prices on the Web site, estimate how much your pizza
party will cost. Show your work. Justify your choice of estimation strategy.
 Is the total cost greater than your budget of $75.00? If so, make
some changes to your order.
 Make a final copy of your order, including the price of each item
and the quantity you have chosen.
 Calculate the total cost and the amount of change you will receive
if you give the pizza delivery person $75.00.
RESOURCES
Pizza shop Web sites:
 www.pizzapizza.ca
 www.241pizza.com
TASK CHECKLIST 

Did
you estimate how much food you would buy and how much it would cost?


Did
you justify your choice of estimation strategy? 

Did
you show all your steps? 

Did
you explain your thinking? 

Did
you use math language? 

