Buck Institute for Education

Domino Effect

Author: Mathalicious

What will my students be doing?

In Domino Effect, students find out how much Domino's is really charging for pizza and explore this even further in three project tasks, Chain Gang, Cover Me and Top It Like It's Hot.

What's Included:

  • Project Overview
  • Launch Activity & Lesson Guide
  • Project Tasks
  • Student Handouts
  • Teacher Guides
  • Interactive Media

Current Version: January 10, 2018

Domino’s pizza is delicious. The company’s success is proof that people enjoy their pies. The company is also tech savvy: you can order online, and they even have a pizza tracker so you can keep tabs on your delivery!

The website is great. But one thing it’s not is transparent. Domino’s does not tell you how much the component pieces cost; they only tell you an item’s final price after you build it. In the launch activity of Domino Effect, students use linear equations to find the base price (y-intercept) and cost per additional topping (slope). Let’s find out how much Domino’s is really charging for pizza.

Students explore this even further in the project tasks, and can choose between three topics. In one task, students research another pizza restaurant’s pricing scheme and mathematically compare it to Domino’s. In another, they use percent change to compare the increase in price between Domino’s pizza sizes to the increase in toppings. In still one more task, they investigate why Domino’s pricing scheme is so weird. How many toppings do most people order, anyway?

Project Notes

  • Subjects: Math
  • Grade Level: 8th
  • Common Core Aligned
  • Time Required: <10 Hours
  • CC BY-NC

Sponsored By


The World Is an Interesting Place. Math Class Should Be, Too.

At Mathalicious, we think the world is an interesting place full of interesting questions. Do people with small feet pay too much for shoes? Do taller Olympic sprinters have an unfair advantage? How have video game consoles changed over time…and are we building the Matrix?

We also think math class is the perfect place for students and teachers to explore questions like these, and that it can be the most interesting part of the day.

Project Documents

Project Author

Mathalicious creates lessons around real-world topics that help middle and high-school teachers address the Common Core while challenging their students to think more critically about the world. Lessons explore such questions as, Do people with small feet pay too much for shoes, and should Nike charge by weight? (unit rates), and How does memory deteriorate over time, and how much can you trust it? (exponential decay). For more information, or to view its growing library of lessons, please visit www.mathalicious.com.