In our increasingly globalized world, a single infected person can board a plane and spread a virus across continents. Mark Honigsbaum describes the history of pandemics and how that knowledge can help halt future outbreaks. A quiz, thought provoking question, and links for further study are provided to create a lesson around the 8-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.

Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measurement of the speed of light in 1849. A quiz, thought provoking question, and links for further study are provided to create a lesson around the 7-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.

While news from Iran streams to the world, Clay Shirky shows how Facebook, Twitter and TXTs help citizens in repressive regimes to report on real news, bypassing censors (however briefly). The end of top-down control of news is changing the nature of politics. A quiz, thought provoking question, and links for further study are provided to create a lesson around the 20-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.

This video lesson is on the details of cancer cell growth. How do cancer cells grow? How does chemotherapy fight cancer (and cause negative side effects)? The answers lie in cell division. George Zaidan explains how rapid cell division is cancer’s "strength" -- and also its weakness.

Infertility affects 1 in 8 couples worldwide. But in the last 40 years, more than 5 million babies have been born using in vitro fertilization (IVF). How does it work? Nassim Assefi and Brian A. Levine detail the science behind making a baby in a lab.

In a world where growing older can mean entering into a complex and confusing maze of difficult choices, Amy O'Rourke stands out as a passionate advocate for the elderly and their families. As founder of Cameron Group Care Management Services, she prioritizes quality of life and helps families and elders navigate the challenges of aging while supporting vital lifestyle preferences.

Sexting, like anything that's fun, runs its risks — but a serious violation of privacy shouldn't be one of them. Amy Adele Hasinoff looks at problematic responses to sexting in mass media, law and education, offering practical solutions for how individuals and tech companies can protect sensitive (and, ahem, potentially scandalous) digital files.

The ratio of a circle's circumference to its diameter is always the same: 3.14159... and on and on (literally!) forever. This irrational number, pi, has an infinite number of digits, so we'll never figure out its exact value no matter how close we seem to get. Reynaldo Lopes explains pi's vast applications to the study of music, financial models, and even the density of the universe.

You're in a movie theater, watching the new horror flick. The audience knows something that the main character does not. The audience sees the character's actions are not in his best interest. What's that feeling -- the one that makes you want to shout at the screen? Christopher Warner identifies this storytelling device as dramatic irony.

When we hear the word radiation, it’s tempting to picture huge explosions and frightening mutations. But that’s not the full story — radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much should we worry about its effects? Matt Anticole describes the different types of radiation.Lect

TED Studies, created in collaboration with Wiley, are curated video collections — supplemented by rich educational materials — for students, educators and self-guided learners. In Leading Wisely, speakers share powerful insights about leaders across a wide range of fields and domains who inspire great results from their teams. Great management in a turbulent global economy has never been so important. Relevant areas of interest, study and coursework include: 

Does a school for the deaf need to be quiet? Architect Marcus Adrian explains how the answer put him on the road to identifying a key element of designing for accessibility — understanding the spectrum of human ability and celebrating what people do well instead of focusing on what they can't.

TED Studies, created in collaboration with Wiley, are curated video collections — supplemented by rich educational materials — for students, educators and self-guided learners. In The Deep Ocean, aquatic explorers take the TED stage to share what they've seen in the abyss of Earth's last frontier: the deep ocean, home to massive underwater mountains and valleys, giant smoking chimneys and an amazing array of animals.

Martin Seligman talks about psychology -- as a field of study and as it works one-on-one with each patient and each practitioner. As it moves beyond a focus on disease, what can modern psychology help us to become? A quiz, thought provoking question, and links for further study are provided to create a lesson around the 24-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.

TED Studies, created in collaboration with Wiley, are curated video collections – supplemented by rich educational materials – for students, educators and self-guided learners. In Covering World News, media executives, journalists and authors explore how our ability to understand and participate in a global society is helped or hindered by Western media coverage of world events. As technology and a tough economy change the way mainstream media companies do business, will international news be an albatross or an asset?

TED Studies, created in collaboration with Wiley, are curated video collections — supplemented by rich educational materials — for students, educators and self-guided learners. The speakers in Rethinking Cancer give the talk of their lives about the prevention, detection and treatment of one of the leading causes of death worldwide: cancer. In this course, you’ll question fundamental concepts about what cancer is and rethink how cancer research should be conducted.

Why do teenagers seem so much more impulsive, so much less self-aware than grown-ups? Cognitive neuroscientist Sarah-Jayne Blakemore compares the prefrontal cortex in adolescents to that of adults, to show us how typically "teenage" behavior is caused by the growing and developing brain.

As globalization and technological advances bring us hurtling towards a new integrated future, Ian Goldin warns that not all people may benefit equally. But, he says, if we can recognize this danger, we might yet realize the possibility of improved life for everyone. Ian Goldin is director of the 21st Century School at Oxford. Through the school's program of research, collaboration and education, he's powering new, cross-disciplinary thinking about global problems from the near and far future. A quiz, thought provoking question, and links for further study are provided to create a lesson around the 7-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.

TED Studies, created in collaboration with Wiley, are curated video collections — supplemented by rich educational materials — for students, educators and self-guided learners. In Mapping and Manipulating the Brain, explore the human brain's 100 billion neurons and 100 trillion connections among them, and learn how neuroscientists are using an array of techniques to chart — and in some cases, change — this amazing organ.

In the 20th century we added an unprecedented number of years to our lifespans, but is the quality of life as good? Surprisingly, yes! Psychologist Laura Carstensen shows research that demonstrates that as people get older they become happier, more content, and have a more positive outlook on the world.