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Da Vinci's Vitruvian Man of Math
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What's so special about Leonardo da Vinci's Vitruvian Man? With arms outstretched, ...

What's so special about Leonardo da Vinci's Vitruvian Man? With arms outstretched, the man fills the irreconcilable spaces of a circle and a square -- symbolizing the Renaissance-era belief in the mutable nature of humankind. James Earle explains the geometric, religious and philosophical significance of this deceptively simple drawing.

Material Type:
Lecture
Provider:
TED-Ed
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Individual Authors
Author:
James Earle
Dramatic Irony
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You're in a movie theater, watching the new horror flick. The audience ...

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.

Subject:
English Language Arts
Material Type:
Lecture
Provider:
TED-Ed
The Great Conspiracy Against Julius Caesar
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Ted Talk: On March 15th, 44 BCE, Roman dictator Julius Caesar was ...

Ted Talk: On March 15th, 44 BCE, Roman dictator Julius Caesar was assassinated by a group of about 60 of his own senators. Why did these self-titled Liberators want him dead? And why did Brutus, whose own life had been saved by Caesar, join in the plot? Kathryn Tempest investigates the personal and political assassination of Julius Caesar.

Subject:
Ancient History
Material Type:
Lecture
Provider:
TED-Ed
How Big Is Infinity?
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Using the fundamentals of set theory, explore the mind-bending concept of the ...

Using the fundamentals of set theory, explore the mind-bending concept of the "infinity of infinities" -- and how it led mathematicians to conclude that math itself contains unanswerable questions.

Material Type:
Lecture
Provider:
TED-Ed
Provider Set:
Individual Authors
Author:
Dennis Wildfogel
How miscommunication happens (and how to avoid it) - Katherine Hampsten
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Have you ever talked with a friend about a problem, only to ...

Have you ever talked with a friend about a problem, only to realize that he just doesn’t seem to grasp why the issue is so important to you? Have you ever presented an idea to a group, and it’s met with utter confusion? What’s going on here? Katherine Hampsten describes why miscommunication occurs so frequently, and how we can minimize frustration while expressing ourselves better.

Subject:
English Language Arts
Material Type:
Lecture
Provider:
TED-Ed
How to Prove a Mathematical Theory
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Euclid of Alexandria revolutionized the way that mathematics is written, presented or ...

Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally convincing proof.

Material Type:
Lecture
Provider:
TED-Ed
Provider Set:
Individual Authors
Author:
Scott Kennedy
The Infinate Life of Pi
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The ratio of a circle's circumference to its diameter is always the ...

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.

Material Type:
Lecture
Provider:
TED-Ed
Provider Set:
Individual Authors
Author:
Reynaldo Lopes
Situational Irony
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TED Video: Leaps and bounds separate that which is ironic and that ...

TED Video: Leaps and bounds separate that which is ironic and that which many people simply say is ironic. Christopher Warner wants to set the record straight: Something is ironic if and only if it is the exact opposite of what you would expect.

Subject:
English Language Arts
Material Type:
Lecture
Provider:
TED-Ed
What Happens if You Guess?
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Will it rain tomorrow? How likely is your favorite team to win ...

Will it rain tomorrow? How likely is your favorite team to win the Super Bowl? Questions like these are answered through the mathematics of probability. Watch this artistic visualization of your odds of passing a test if you don't know any of the answers.

Material Type:
Lecture
Provider:
TED-Ed
Provider Set:
Individual Authors
Author:
Leigh Nataro