Choose vs Lose | Common English Grammar Mistakes

Practice Present Perfect Continuous Tense | English Grammar Course

How can we control the coronavirus pandemic? | Adam Kucharski

NASA’s first software engineer: Margaret Hamilton - Matt Porter & Margaret Hamilton

How good are you at calculating risk? - Gerd Gigerenzer

Why gender-based marketing is bad for business | Gaby Barrios

How guest worker visas could transform the US immigration system | David J. Bier

A swarm of mini drones makes ... magic! | Marco Tempest

Adverbs of Manner | Learn Basic English Grammar Course

Present vs Present | Learn English Heteronyms | Meaning and Pronunciation

Adverbs of Degree | Learn Basic English Grammar Course

Practice Present Perfect Tense | English Grammar Course #6 | CheckUp

Learn Present Perfect Tense | English Grammar Course

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/æ/ vs /e/ | Learn English Pronunciation Course #7 | Minimal Pairs Practice

How to save a language from extinction | Daniel Bögre Udell

Produce vs Produce | Learn English Heteronyms

Erika Pinheiro: What's really happening at the US-Mexico border -- and how we can do better | TED

How can we support the emotional well-being of teachers? | Sydney Jensen

What it's like to live on the International Space Station | Cady Coleman

Hope and justice for women who've survived ISIS | Rabiaa El Garani

Amma Y. Ghartey-Tagoe Kootin: A musical that examines black identity in the 1901 World's Fair | TED

Our immigration conversation is broken -- here's how to have a better one | Paul A. Kramer

The business case for working with your toughest critics | Bob Langert | TED

The next software revolution: programming biological cells | Sara-Jane Dunn

What productive conflict can offer a workplace | Jess Kutch

The medical potential of AI and metabolites | Leila Pirhaji

How we experience awe -- and why it matters | Beau Lotto and Cirque du Soleil

The link between fishing cats and mangrove forest conservation | Ashwin Naidu

How you can help transform the internet into a place of trust | Claire Wardle

English GAME | Test Your English Vocabulary

How we can eliminate child sexual abuse material from the internet | Julie Cordua

Luis H. Zayas: The psychological impact of child separation at the US-Mexico border | TED

A circular economy for salt that keeps rivers clean | Tina Arrowood

Practice Present Continuous Tense | English Grammar Course Checkup

A coral reef love story | Ayana Elizabeth Johnson | TED

After billions of years of monotony, the universe is waking up | David Deutsch

How we're using DNA tech to help farmers fight crop diseases | Laura Boykin

A radical plan to end plastic waste | Andrew Forrest

The transformative power of video games | Herman Narula

Reducing corruption takes a specific kind of investment | Efosa Ojomo

A bold plan to empower 1.6 million out-of-school girls in India | Safeena Husain

Learn Present Continuous Tense | English Grammar Course

Why language is humanity's greatest invention | David Peterson

What the US health care system assumes about you | Mitchell Katz

Close vs Close | Learn English Heteronyms

Creativity builds nations | Muthoni Drummer Queen

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