Numbers and Operations

One equation. Digits one through nine. How many ways can you make it work?

Which set of fractions would be the trickiest to order from least to greatest? Let’s have a tournament!

How many different ways can you make this math statement true using only the digits one through nine?

What if we played Tic-Tac-Toe with numbers and instead of three-in-a-row, we add up to 15? Well… then we’d have Number Scrabble!

What if we took a fraction apart, then took those pieces apart, then recombined them, and then recombined those, arriving back to the original fraction?

Design and furnish hotel rooms on a budget. Real math, real constraints, real decisions. Then pitch your hotel to investors.

In these math problems, the solution is already given. But another number is missing!

What do you do with students who already get their fraction operations? Give them a contrived project about recipes or pizza slices? Make them solve annoyingly hard practice problems? Please. Here, we get students thinking in a whole new way, pondering which has more power, the numerator or denominator.

How many different ways can you make this math statement true using only the digits one through nine?

How many different ways can you make this fraction subtraction statement true using only the digits one through nine?

Before teaching students the procedure for multiplying with decimals, how much can they intuitively glean from a structured play session with calculators?

How many different ways can you make this math statement true using only the digits one through nine?

Who can get to 100 first in this simple, but delightful, math game?

How many different ways can you make this math statement true using only the digits zero through nine?

Four sets of 2-digit and 3-digit addition and subtraction practice. But the unknown isn’t where you expect it to be!

Imagine a world with no hundreds place. We’d have to call it ten tens instead. But then, what would we call the thousands place? How would we read 9999? What if we added one more?

Can your students figure out how to add fractions by looking for a pattern?

Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit subtraction.

What if you set the stage for students to discover how to multiply fractions?

How many different ways can you make this fraction addition statement true using only the digits one through nine?

Typical practice problems don’t move students up Bloom’s Taxonomy. With this framework, you’ll see kids stop and really think about how to approach multi-digit addition.

Your students will use estimation strategies to figure out how many parking spots are there in the parking structure at Disneyland? And you bet I reveal the real answer!

How many different ways can you make this fraction multiplication statement true using only the digits one through nine?

Sets of multiplication and division practice problems. But the unknown isn’t where you expect it to be!

How many different ways can you make this math statement true using only the digits one through nine?

How many different ways can you make this math statement true using only the digits one through nine?

Ready for a tricky counting and divisibility game?

Place value is something we cover in elementary school. It seems simple, but I’d wager that very few adults really understand the topic. I sure didn’t until I worked with non-base-10 number systems in college. Your students can get a taste of this mind-boggling experience by imagining what it would be like if we didn’t have the number 9. What would each digit represent then?

How many different ways can you make this fraction division math statement true using only the digits one through nine?

Roll three dice and combine them using any mathematical operation. But be strategic to maximize your points!

The North Pole hits -40°. The South Pole hits -60°. Calculate the averages, graph the data, and deliver your polar weather report.

One equation. Digits one through nine. How many ways can you make it work?

When fractions take on a new denominator, it’s as if they’re wearing a disguise – same value, new look. So let’s write a story about fraction equivalence starring a fraction who needs to fit in with a new group.

You only have six digits to form three fractions. Can you combine them to get to 0?

You’ve got 60 spaces on a grid to create an amusement park, a house, a farm, or whatever you’d like. Divide it into seven pieces, order it by size, combine into two halves, and more in this fraction project.

How fast do you get your mathematical car going without crashing?