Arizona Math Standard: 2.NBT.B.6

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

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

Can you make each side of this triangle add up to 9 using the digits 1-6?

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

Give kids a taste of a sequence, let them build an understanding, and then see how far their predictions can take them.

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.

In 1932, a leading authority on rattlesnakes, Laurence Klauber, discovered a startling pattern within a triangle of primes.

Pascal’s pattern-packed triangle is a potent puzzle for pupils to ponder.

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?

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…