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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Control Room Riddle?

For Students 9th - 10th
As your country's top spy, you must infiltrate the headquarters of the evil syndicate, find the secret control panel, and deactivate their death ray. But your reconnaissance team is spotty, and you have only limited information about the...
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Unit Plan
TED Talks

Ted: Ted Ed: Should You Trust Unanimous Decisions?

For Students 9th - 10th
Imagine a police lineup where ten witnesses are asked to identify a bank robber they glimpsed fleeing the scene. If six of them pick the same person, there's a good chance that's the culprit. And if all ten do, you might think the case...
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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Locker Riddle?

For Students 9th - 10th
Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to you, but he knew that if he did, your relatives would pester you...
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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Frog Riddle?

For Students 9th - 10th
You're stranded in a rainforest, and you've eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, only the female frog produces the antidote. The male and female look...
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Unit Plan
TED Talks

Ted: Ted Ed: Can You Solve the Temple Riddle?

For Students 9th - 10th
Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing with less than an...
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Interactive
Other

Exidor's Logic Puzzle Place

For Students 9th - 10th
This lighthearted personal website (Exidor is a character from the old "Mork and Mindy" TV show) provides a multitude of logic puzzles and brain teasers, along with links to similar sites. Solutions provided for each puzzle.
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Lesson Plan
Econoclass

Econoclass: Resources for Economic Teachers

For Teachers 9th - 10th Standards
A site with resources for teachers teaching high school economics.
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Handout
University of Michigan

Personal Site: Antagonyms

For Students 9th - 10th Standards
This personal site is a good resource page for teachers who are teaching about word meanings, slang, synonyms, antonyms and word contradictions.

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