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Tipping Point Math
The Harmonic Series
How to Divide by 7
What You Don't Know About Pascal's Triangle
The 5 Best Proofs that the Square Root of 2 is Irrational
Measuring the Earth's Size (without Google)
How to Split a Cake 5 Ways
Why is it Called the Chain Rule?
Math is a Game
Bulgarian Solitaire
These Shapes are the Same
United States of Voronoi
Are You Using Your Umbrella Correctly?
Is Your Password Secure?
What is the Golden Ratio?
How Many Marbles are in the Jar?
Ants On A Log
Can You Solve the Ducci Challenge?
How to Know if You’re Underpaid
The Joy Of Hex
Frustrated with Democracy?
Why are Walled Cities Round?
Weird Dice
The Mathemagician
Folding a Circle into an Ellipse