Browse Lessons

The diseases that changed humanity forever - Dan Kwartler

Why was the US government obsessed with this animal? - Andrew C. Isenberg

Where did these gigantic space bubbles come from? - Ashkbiz Danehkar

The gory history of barber surgeons - Stephanie Honchell Smith

The asteroid that almost wiped out life on Earth - Sean P. S. Gulick

Sherlock Holmes and the crime of the century - Alex Rosenthal

Can you solve the secret assassin society riddle? - Alex Rosenthal

What really caused the Irish Potato Famine - Stephanie Honchell Smith

Japan's scariest ghost story - Kit Brooks

The dark history of werewolves - Craig Thomson

A tour of the ancient Greek Underworld - Iseult Gillespie

How to overcome your mistakes

Confused about recycling? It’s not your fault - Shannon Odell

3 tips on how to study effectively

How you survive the coldest place on Earth - Nadia Frontier

Changing the future, one student voice at a time #shorts

What would happen if everyone stopped eating meat tomorrow? - Carolyn Beans

Ethical dilemma: What makes life worth living? - Douglas MacLean

The plot to overthrow the Inca Empire - Gabriel Prieto

Why mosquitoes bite some people more than others - Maria Elena De Obaldia

Why were scientists so obsessed with these frogs? - Carly Anne York

Why is this painting of a black square famous? - Allison Leigh

Do you ever feel isolated amongst your peers? #shorts

What happens when you fall into piranha-infested waters? - Antonio Machado-Allison

Can you change your sleep schedule?

Can you solve the cursed dice riddle? - Dan Finkel

This is what happens when you hit the gas - Shannon Odell

Why is it so hard to break a bad habit?

The one thing stopping jellyfish from taking over - Mariela Pajuelo & Javier Antonio Quinones

Can alligators survive this apex predator? - Kenny Coogan

Is plant-based meat actually better for you? - Carolyn Beans

A 5,300-year-old murder mystery - Albert Zink

How the water you flush becomes the water you drink - Francis de los Reyes

Why is everyone fighting over these tiny spots of space? - Fabio Pacucci

What happens if you don’t put your phone in airplane mode? - Lindsay DeMarchi

Why your phone battery gets worse over time - George Zaidan

How dangerous was it to be a jester? - Beatrice K. Otto

How to enter flow state

3 questions to ask yourself before you believe something - Siska De Baerdemaeker

Become a patron of TED-Ed! #shorts

The rise and fall of Italy’s warriors-for-hire - Stephanie Honchell Smith

One of history's most dangerous myths - Anneliese Mehnert

3 ways to choose a sunscreen #shorts

What's happening to Earth's core? - Shannon Odell

Can other animals understand death? - Barbara J. King

Can you solve the time traveling car riddle? - Dan Finkel

3 things you may not know about the Declaration of Independence #shorts

Why did Megalodon go extinct? - Jack Cooper and Catalina Pimiento