### Let's Take Turns

Kids Math
Learn about taking turns with Noodle & Pals!

### Why the Three-Body Problem is Unsolvable*

Adults Math
What is the THREE-BODY PROBLEM? What does it have to do with the award-winning book of the same name?

### The Language Counting Paradox

Adults Math
Lots of languages and species are going extinct, but because others keep getting found or described, the official counts of languages and species are still increasing.

### Something Strange Happens When You Follow Einstein's Math Veritasium 15.5M subscribers Subscribe 91K

Adults Math
Einstein was wrong about black holes, what else?

### Why the Hardest Rocks Can Be Easy to Break

Adults Math
So, rocks are hard. But the scale we use to rank them, the Mohs scale, is only really good at quantifying that for one kind of hardness, and topaz is a perfect stone to talk about to explain that. And you can check it out in our SciShow Rocks Box subscription!

### One Potato, Two Potato

Kids Math
Get counting with potatoes?!

### The Oldest Unsolved Problem in Math

Adults Math
Do odd perfect numbers exist?

### The Trillion Dollar Equation

Adults Math
The most famous equation in finance, the Black-Scholes/Merton equation, came from physics.

### Counting Fire Trucks

Kids Math
This catchy count to 10 song is perfect for teaching kids about fire trucks and counting!

### Going On A Circle Hunt

Kids Math
Join the Kiboomers on a fun circle hunt adventure as they search for different circular objects.

### Absolute Value For Grade 6

Youth Math
Do you know how to figure out the absolute value of a number? In this video, you'll learn just that.

### Five Little Penguins Jumping On The Bed

Kids Math
Five Little Penguins Jumping on the Bed is a fun and catchy song for kids that will have them bouncing along to the beat.

### Counting Up To 20

Kids Math
Counting is easy and fun with the Roundabouts and their bug friends.

### How The Most Useless Branch of Math Could Save Your Life

Adults Math
There is an entire branch of math simply devoted to knots

### Can Geometry Be Art?

Kids Math
Watch this film to learn about what geometry and art have in common.

### Adding Up To 10

Kids Math
What's the name of the game? Add all the way up to ten one by one!

### Financial Literacy For Kids: Making A Budget

Youth Math
Financial Literacy for Kidsâ€”Making a Budget explains how to create a budget based on your income and expenses.

### Financial Literacy For Kids: Needs & Wants

Youth Math
Financial Literacy for Kids: Needs and Wants explains the difference between needs versus wants.

### Numbers They Don't Teach You In School

Adults Math
There's a strange number system, featured in the work of a dozen Fields Medalists, that helps solve problems that are intractable with real numbers.

### Financial Literacy For Kids: Introduction

Youth Math
Financial Literacy for Kids provides the basics about needs versus wants, budgeting, credit versus debit, and more.

### This one weird trick will get you infinite gold - Dan Finkel

Adults Math
A few years ago, the king decided your life would be forfeit unless you tripled the gold coins in his treasury.