Dan Meyer: Math class needs a makeover

TEDxNYED

Dan Meyer: Math class needs a makeover

2,577,308 views

Readability: 4.2


Today's math curriculum is teaching students to expect -- and excel at -- paint-by-numbers classwork, robbing kids of a skill more important than solving problems: formulating them. Dan Meyer shows classroom-tested math exercises that prompt students to stop and think.

Enric Sala: Glimpses of a pristine ocean

Mission Blue Voyage

Enric Sala: Glimpses of a pristine ocean

339,348 views

Readability: 4.4


Enric Sala shares glorious images -- and surprising insights and data -- from some of the most pristine areas of the ocean. He shows how we can restore more of our oceans to this healthy, balanced state, and the powerful ecological and economic benefits of doing so.

Nathan Myhrvold: Could this laser zap malaria?

TED2010

Nathan Myhrvold: Could this laser zap malaria?

873,299 views

Readability: 3.7


Nathan Myhrvold and team's latest inventions -- as brilliant as they are bold -- remind us that the world needs wild creativity to tackle big problems like malaria. And just as that idea sinks in, he rolls out a live demo of a new, mosquito-zapping gizmo you have to see to believe.

Nicholas Christakis: The hidden influence of social networks

TED2010

Nicholas Christakis: The hidden influence of social networks

1,439,660 views

Readability: 4.3


We're all embedded in vast social networks of friends, family, co-workers and more. Nicholas Christakis tracks how a wide variety of traits -- from happiness to obesity -- can spread from person to person, showing how your location in the network might impact your life in ways you don't even know.

Anil Gupta: India's hidden hotbeds of invention

TEDIndia 2009

Anil Gupta: India's hidden hotbeds of invention

680,070 views

Readability: 3.7


Anil Gupta is on the hunt for the developing world's unsung inventors -- indigenous entrepreneurs whose ingenuity, hidden by poverty, could change many people's lives. He shows how the Honey Bee Network helps them build the connections they need -- and gain the recognition they deserve.

Jeremy Jackson: How we wrecked the ocean

Mission Blue Voyage

Jeremy Jackson: How we wrecked the ocean

691,874 views

Readability: 3.6


In this bracing talk, coral reef ecologist Jeremy Jackson lays out the shocking state of the ocean today: overfished, overheated, polluted, with indicators that things will get much worse. Astonishing photos and stats make the case.

Thomas Dolby: "Love Is a Loaded Pistol"

TED2010

Thomas Dolby: "Love Is a Loaded Pistol"

599,853 views

Readability: 4


To write his first studio album in decades, "A Map of the Floating City," Thomas Dolby has been working in the inspirational setting of a restored lifeboat. At TED2010 he premieres a gorgeous, evocative song from that album -- about one night with a legend. He's backed by members of the modern string quartet Ethel.

Simon Sinek: How great leaders inspire action

TEDxPuget Sound

Simon Sinek: How great leaders inspire action

40,175,728 views

Readability: 3.5


Simon Sinek has a simple but powerful model for inspirational leadership -- starting with a golden circle and the question "Why?" His examples include Apple, Martin Luther King, and the Wright brothers ...

Esther Duflo: Social experiments to fight poverty

TED2010

Esther Duflo: Social experiments to fight poverty

948,629 views

Readability: 2.8


Alleviating poverty is more guesswork than science, and lack of data on aid's impact raises questions about how to provide it. But Clark Medal-winner Esther Duflo says it's possible to know which development efforts help and which hurt -- by testing solutions with randomized trials.

Roz Savage: Why I'm rowing across the Pacific

Mission Blue Voyage

Roz Savage: Why I'm rowing across the Pacific

661,155 views

Readability: 3.2


Five years ago, Roz Savage quit her high-powered London job to become an ocean rower. She's crossed the Atlantic solo, and just started the third leg of a Pacific solo row, the first for a woman. Why does she do it? Hear her reasons, both deeply personal and urgently activist.

Stephen Wolfram: Computing a theory of all knowledge

TED2010

Stephen Wolfram: Computing a theory of all knowledge

1,593,033 views

Readability: 4.4


Stephen Wolfram, creator of Mathematica, talks about his quest to make all knowledge computational -- able to be searched, processed and manipulated. His new search engine, Wolfram Alpha, has no lesser goal than to model and explain the physics underlying the universe.

Kavita Ramdas: Radical women, embracing tradition

TEDIndia 2009

Kavita Ramdas: Radical women, embracing tradition

494,357 views

Readability: 4.4


Investing in women can unlock infinite potential around the globe. But how can women walk the line between Western-style empowerment and traditional culture? Kavita Ramdas of the Global Fund for Women talks about three encounters with powerful women who fight to make the world better -- while preserving the traditions that sustain them.

Tim Birkhead: The early birdwatchers

The Do Lectures

Tim Birkhead: The early birdwatchers

115,987 views

Readability: 0

No Transcript

Birds, a perennial human fascination, entertained medieval homes long before science took them for serious study. "Wisdom of Birds" author Tim Birkhead tours some intriguing birdwatcher lore (dug up in old field journals) -- and talks about the role it plays in ornithology today.

Omar Ahmad: Political change with pen and paper

TED2010

Omar Ahmad: Political change with pen and paper

557,302 views

Readability: 3.5


Want your local politician to pay attention to an issue you care about? Send a monthly handwritten letter, says former mayor Omar Ahmad -- it's more effective than email, phone, or even writing a check. He shares four steps to writing a letter that works.

Tom Wujec: Build a tower, build a team

TED2010

Tom Wujec: Build a tower, build a team

4,686,643 views

Readability: 4.1


Tom Wujec presents some surprisingly deep research into the "marshmallow problem" -- a simple team-building exercise that involves dry spaghetti, one yard of tape and a marshmallow. Who can build the tallest tower with these ingredients? And why does a surprising group always beat the average?

Frederick Balagadde: Bio-lab on a microchip

TED2010

Frederick Balagadde: Bio-lab on a microchip

302,067 views

Readability: 5.3


Drugs alone can't stop disease in sub-Saharan Africa: We need diagnostic tools to match. TED Senior Fellow Frederick Balagadde shows how we can multiply the power and availability of an unwieldy, expensive diagnostic lab -- by miniaturizing it to the size of a chip.

James Randi: Homeopathy, quackery and fraud

TED2007

James Randi: Homeopathy, quackery and fraud

3,037,310 views

Readability: 3.2


Legendary skeptic James Randi takes a fatal dose of homeopathic sleeping pills onstage, kicking off a searing 18-minute indictment of irrational beliefs. He throws out a challenge to the world's psychics: Prove what you do is real, and I'll give you a million dollars. (No takers yet.)

Edith Widder: Glowing life in an underwater world

Mission Blue Voyage

Edith Widder: Glowing life in an underwater world

599,272 views

Readability: 4.1


Some 80 to 90 percent of undersea creatures make light -- and we know very little about how or why. Bioluminescence expert Edith Widder explores this glowing, sparkling, luminous world, sharing glorious images and insight into the unseen depths (and brights) of the ocean.

Eric Whitacre: A choir as big as the Internet

Eric Whitacre's Virtual Choir

Eric Whitacre: A choir as big as the Internet

611,721 views

Readability: 0

No Transcript

185 voices from 12 countries join a choir that spans the globe: "Lux Aurumque," composed and conducted by Eric Whitacre, merges hundreds of tracks individually recorded and posted to YouTube. It's an astonishing illustration of how technology can connect us.

Thelma Golden: How art gives shape to cultural change

TED2009

Thelma Golden: How art gives shape to cultural change

595,083 views

Readability: 4.5


Thelma Golden, curator at the Studio Museum in Harlem, talks through three recent shows that explore how art examines and redefines culture. The "post-black" artists she works with are using their art to provoke a new dialogue about race and culture -- and about the meaning of art itself.

Mike deGruy: Hooked by an octopus

Mission Blue Voyage

Mike deGruy: Hooked by an octopus

1,016,836 views

Readability: 3.8


Underwater filmmaker Mike deGruy has spent decades looking intimately at the ocean. A consummate storyteller, he takes the stage at Mission Blue to share his awe and excitement -- and his fears -- about the blue heart of our planet.

Catherine Mohr: The tradeoffs of building green

TED2010

Catherine Mohr: The tradeoffs of building green

800,533 views

Readability: 3.7


In a short, funny, data-packed talk at TED U, Catherine Mohr walks through all the geeky decisions she made when building a green new house -- looking at real energy numbers, not hype. What choices matter most? Not the ones you think.

Jonathan Klein: Photos that changed the world

TED2010

Jonathan Klein: Photos that changed the world

1,249,785 views

Readability: 5.1


Photographs do more than document history -- they make it. At TED University, Jonathan Klein of Getty Images shows some of the most iconic, and talks about what happens when a generation sees an image so powerful it can't look away -- or back.

Michael Specter: The danger of science denial

TED2010

Michael Specter: The danger of science denial

1,890,219 views

Readability: 3


Vaccine-autism claims, "Frankenfood" bans, the herbal cure craze: All point to the public's growing fear (and, often, outright denial) of science and reason, says Michael Specter. He warns the trend spells disaster for human progress.

Natalie Merchant: Singing old poems to life

TED2010

Natalie Merchant: Singing old poems to life

891,652 views

Readability: 4.6


Natalie Merchant sings from her poetry-inspired album "Leave Your Sleep," which pairs lyrics from poets -- from Gerard Manley Hopkins to a near-forgotten 10-year-old girl in Brooklyn -- with simple melodies and her unmistakable voice. Stay for an encore performance of her hit "Thank You," dedicated to a notable philanthropist in the audience.

Jonathan Drori: Every pollen grain has a story

TED2010

Jonathan Drori: Every pollen grain has a story

422,546 views

Readability: 4


Pollen goes unnoticed by most of us, except when hay fever strikes. But microscopes reveal it comes in stunning colors and shapes -- and travels remarkably well. Jonathan Drori gives an up-close glimpse of these fascinating flecks of plant courtship.

Dean Kamen: The emotion behind invention

TEDMED 2009

Dean Kamen: The emotion behind invention

539,248 views

Readability: 3


Soldiers who've lost limbs in service face a daily struggle unimaginable to most of us. At TEDMED, Dean Kamen talks about the profound people and stories that motivated his work to give parts of their lives back with his design for a remarkable prosthetic arm.