Broken Calculator: Simplifying Fractions

Broken Calculator: Multiplication Cross Product

Adding and Subtracting Fruit

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

Contig

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

Spring Math Worksheets: Multiplication and Division

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

Factors and Codes (Episode 1)

Let’s use factors to encode and decode words.

Math Curiosity: Magic Triangles

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

How Many Will There Be? Crosses

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

Racetrack – Race Around A Graph

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

Fizz Buzz: A Counting and Divisibility Game

Ready for a tricky counting and divisibility game?

How Many Will There Be? Pyramids

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

How Many Will There Be? Desks

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

How Many Will There Be? Flowers

These flowers sure are getting bigger faster! How large will they be in step 10? What about step 50?

Addition: 3 Digits Plus 2 Digits (Multiple Solutions)

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.

Subtraction: 3 Digits Minus 2 Digits (Multiple Solutions)

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.

How Many Will There Be? Triangles Within Triangles

A triangle splits and splits and splits again. How many will there be in step 20?

Math Curiosity: Ulam Spiral

What if we make a huge spiral of numbers and then highlight only the primes? Well, a bunch of weird patterns show up!

How Many Ways: Times Equals Minus

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

How Many Ways: 2 Digit ÷ 1 Digit = 1 Digit

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

Undoing Multiplication With Division

Multiplication and division, natural foes, are constantly seeking to undo each other. Students will attempt to reverse the effects of multiplication by dividing once, twice, or even thrice!

Exponents – How Low Can They Go?

Using exponent patterns, can students predict what the 0th power will be?

Math Curiosity: Four Squares

Every positive integer can be written as the sum of (at most) four perfect squares!

Math Curiosity: Magic Squares

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

Why Is Our Calendar So Weird!?

Why are there 12 months? Why don’t weeks fit into months evenly? Why don’t weeks fit into the year evenly? What’s going on with the calendar!

Math Curiosity: Odds & Squares

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

Doubling Dollars

Say you have a dollar. Say you can double that dollar each day: $1, $2, $4, and so on. How long will it take to reach… one million dollars? Not as long as you might think!

Visualizing Fraction Multiplication

What does it look like to multiply fractions?

How Many Students Can Fit On The Playground?

So… just how many kids could we cram onto the playground?

The Game of 100

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

Furnishing A Hotel

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