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Pizza price

67
skips
33
questions

Act One

• John Rowe

June 23, 2015

How much does each size cost?

• Teacher note
Ask the students to, without talking or thinking too long, write down the first question that comes to their mind?

Act Two

• 1.

How much will the 18" pizza cost?

• From the menu, pick a type of pizza

Write down the Pizza name and the 12â€ price

Why did you pick that one?

Flavour

Price

Value for money

Novelty

Trying something new

Other?

Write down what you would pay for an 18â€ pizza

Have a guess at how much it costs (they may be the same)

• Teacher note

Ask these kind of questions through a class discussion:

Why do you think that you guessed that price?

What affects your opinion / â€œgut instinctâ€?

Was it a reasonable guess?

Would you pay that amount?

If the students are in table groups, give them 5 minutes to calculate the price of an 18â€³ pizza

After the 5 minutes, students share their methods with their table group. These are then shared amongst the class through a discussion.
• 2.

What's a fair price?

• Teacher note

What would be a â€œfair priceâ€ to pay?

How do restaurants normally price their pizzas?

What else needs to be considered apart from the diameter of the pizza?
• LinkPizza Prices Lesson | PowerPoint

Act Three

Sequel

• 3.

How can we recreate the menu to be mathematically fair?

• 4.

How might the prices be determined?

• Teacher note
In table groups, students are to pick one type of pizza. They then come up with a â€œmathematically fairâ€ price for the 12â€³ and 18â€³ pizzas based on the 15â€³ menu price.

What is more â€œvalue for moneyâ€?

Why?

Then, the teacher shows how to find the area of the pizza and calculate the prices based on the square inch price of the 15â€³ menu price. Students then recalculate their answers from the previous section.
• 5.

How much would the World's Largest Pizza cost?