CCSS Math Standard: 2.NBT.9

Use super cute fruit to introduce algebraic thinking to your young math students.

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

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

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!

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.

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.

Can any even number be written as the sum of two primes? Goldbach thought so, but we haven’t proven it… yet!

When we’re adding and subtracting, do evens make odds into evens? Do odds make evens odd? Which one has… more power!?

The commutative and associative properties are a whole lot more interesting when you apply them to a mathematical operation that you created!

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?

Imagine a 3×3 square in which every row, column, and diagonal have the same sum. That’s a magic square!

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?

Why does the sum of the first 5 odds also equal 5 squared?

So, can you write every odd (greater than 3) as the sum of three primes?

Can any perfect square be written as the sum of two primes?

Using this one weird trick, it seems that you can turn any number into a palindrome!

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

The Collatz Conjecture: start with any number and get to 1 using just two rules. It seems to always work…