Browse Lessons

Meet the tardigrade, the toughest animal on Earth - Thomas Boothby

What makes a poem … a poem? - Melissa Kovacs

The history of chocolate - Deanna Pucciarelli

What is McCarthyism? And how did it happen? - Ellen Schrecker

The myth of Icarus and Daedalus - Amy Adkins

Where do superstitions come from? - Stuart Vyse

How Braille was invented | Moments of Vision 9 - Jessica Oreck

Does "The Wonderful Wizard of Oz" have a hidden message? - David B. Parker

What happened to trial by jury? - Suja A. Thomas

TED-Ed Clubs: Celebrating and amplifying student voices around the world

Are ghost ships real? - Peter B. Campbell

How to practice effectively...for just about anything - Annie Bosler and Don Greene

Everything you need to know to read "Frankenstein" - Iseult Gillespie

Can you solve the three gods riddle? - Alex Gendler

The exceptional life of Benjamin Banneker - Rose-Margaret Ekeng-Itua

What happens during a heart attack? - Krishna Sudhir

How small are we in the scale of the universe? - Alex Hofeldt

What is bipolar disorder? - Helen M. Farrell

Would winning the lottery make you happier? - Raj Raghunathan

How super glue was invented | Moments of Vision 8 - Jessica Oreck

History vs. Cleopatra - Alex Gendler

The science of milk - Jonathan J. O'Sullivan

Everything you need to know to read Homer's "Odyssey" - Jill Dash

The myth behind the Chinese zodiac - Megan Campisi and Pen-Pen Chen

Mary's Room: A philosophical thought experiment - Eleanor Nelsen

The mathematics of sidewalk illusions - Fumiko Futamura

A brief history of numerical systems - Alessandra King

How do animals experience pain? - Robyn J. Crook

Would you sacrifice one person to save five? - Eleanor Nelsen

What’s so great about the Great Lakes? - Cheri Dobbs and Jennifer Gabrys

How to master your sense of smell - Alexandra Horowitz

What does this symbol actually mean? - Adrian Treharne

Can you solve the counterfeit coin riddle? - Jennifer Lu

How the stethoscope was invented | Moments of Vision 7 - Jessica Oreck

Why are we so attached to our things? - Christian Jarrett

Why do we kiss under mistletoe? - Carlos Reif

Why do airlines sell too many tickets? - Nina Klietsch

Is there a limit to technological progress? - Clément Vidal

How high can you count on your fingers? (Spoiler: much higher than 10) - James Tanton

Why doesn’t anything stick to Teflon? - Ashwini Bharathula

The science of imagination - Andrey Vyshedskiy

How does your body know what time it is? - Marco A. Sotomayor

How smudge-proof lipstick was invented | Moments of Vision 6 - Jessica Oreck

Is there a reproducibility crisis in science? - Matt Anticole

Can you solve the airplane riddle? - Judd A. Schorr

Can machines read your emotions? - Kostas Karpouzis

What's the fastest way to alphabetize your bookshelf? - Chand John

The secrets of Mozart’s “Magic Flute” - Joshua Borths