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Teachers need real feedback - Bill Gates
Until recently, many teachers only got one word of feedback a year: "satisfactory." And with no feedback, no coaching, there's just no way to improve…
1 week, 3 days ago
Ugly History: The Khmer Rouge's deadly campaign - Timothy Williams
Dig into the era of the Khmer Rouge in Cambodia, which perpetuated a genocide that killed a quarter of the country’s population.
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From 1975 to 1979,…
1 week, 3 days ago
How to spot a pyramid scheme - Stacie Bosley
Learn the techniques and tricks that pyramid schemes use to recruit new members and how to avoid being fooled yourself.
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In 2004, a nutrition compan…
1 week, 3 days ago
grammar rules you can break today - Arika Okrent
Take a look at 3 English language grammar rules to find out where they come from and if you actually need to follow them.
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Grammatical rules have cau…
1 week, 3 days ago
Unveiling TED-Ed: Lessons Worth Sharing
TED-Ed's mission is to capture and amplify the voices of great educators around the world. We do this by pairing extraordinary educators with talente…
1 week, 3 days ago
Evolution in an Urban Center
Using newts, coyotes and mice, Jason Munshi-South shows how animals develop genetic differences in evolution, even within an urban city.
"Evolution in…
1 week, 3 days ago
How many universes could there be? - Chris Anderson
View the full lesson: http://ed.ted.com/lessons/how-many-un...
The fact that no one knows the answer to this question is what makes it exciting. The s…
1 week, 3 days ago
Technology's epic story - Kevin Kelly
In this wide-ranging, thought-provoking talk, Kevin Kelly muses on what technology means in our lives -- from its impact at the personal level to its…
1 week, 3 days ago
Deep ocean secrets and wonders - David Gallo
In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- fr…
1 week, 3 days ago
Mysteries No One Knows the Answers to
In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions tha…
1 week, 3 days ago