TED-Ed
The Famously Difficult Green-Eyed Logic Puzzle
Ready to introduce the study of logic with what has been called "the hardest logic puzzle in the world"? What better way than with a TED-Ed video! This video describes the famous green-eyed-prisoners-on-an-island riddle by first posing...
TED-Ed
Can You Solve the Three Gods Riddle?
The Three Gods Riddle has been called the "hardest logic puzzle ever." Introduce viewers to the problem with a video that challenges scholars to find the solution.
TED-Ed
Can You Solve the Jail Break Riddle?
How can you accurately measure 45 seconds with two 60-second fuses and a lighter? A video takes learners through a logic puzzle that helps a bank robber break out of jail before the electric fence comes on.
Physics Girl
Can You Solve the Boat Puzzle?
Sometimes in physics, the logic is a little illogical. A video presentation shows how to use extreme cases to apply logic to physics stumpers. The examples pertain to displacement situations, but scholars can apply the concept to all...
TED-Ed
Can You Solve the River Crossing Riddle?
Getting three wildebeest across a river should be no problem— but what happens when you add three lions to the mix? Watch a video that features a classic river-crossing puzzle with a crocodile twist. Viewers listen as the narrator...
TED-Ed
Can You Solve the Counterfeit Coin Riddle?
Math enthusiasts and riddle gurus are sure to love a mind-bending puzzle involving a king, a scale, and a counterfeit coin. Middle and high schoolers work through a video that describes a mathematician's challenge to find a false coin in...
Crash Course
The Presocratics: Crash Course History of Science #2
How did early scientists arrive at the notion that everything was made of atoms? Meet the Presocratics during the second installment in an engaging History of Science series. Viewers discover how these pioneers developed a model for...
TED-Ed
Everything Changed When the Fire Crystal Got Stolen
Viewers of a short video use the Proof by Contradiction technique; to determine which apprentice monk swallowed which crystal the group attempted to steal from the Sacred Crystal Temple.
Khan Academy
Khan Academy: Epistemology: The Puzzle of Grue
In this video, Sinan Dogramaci (The University of Texas at Austin) explains the puzzle of grue. He discusses how this puzzle undercut the attempt to formally develop inductive logic, the logic of probabilistic support.
Khan Academy
Khan Academy: Brain Teasers: Forehead Numbers Brain Teaser
Video sets up and solves the following brain teaser: Three people with infallible logic are in a room together. Each has a number painted on their forehead. The numbers are unique, greater than zero, and one number is the sum of the...
Massachusetts Institute of Technology
Mit: Blossoms: The Towers of Hanoi: Experiential Recursive Thinking
After viewing video components, students use manipulatives to work with the famous Towers of Hanoi problem. The goal is for learners to begin to understand recursive logic and thinking, relevant to computer scientists, mathematicians,...
Khan Academy
Khan Academy: Brain Teasers: Alien Abduction Brain Teaser
Saving Earth from becoming a mushroom farm.
Khan Academy
Khan Academy: Brain Teasers: Liar Truthteller Brain Teaser
Video explains how to solve a brain teaser involving two doors, with treasure behind one of the doors. Two people guard the doors. The first is honest and always tells the truth. The second lies and never tells the truth. What question,...
Khan Academy
Khan Academy: Brain Teasers: Alien Abduction Brain Teaser
Video explains how to solve a brain teaser involving ten people who have been abducted by aliens. The people are arranged single-file, facing the same direction. Each person is wearing either a purple or green hat. No one can see the...
Khan Academy
Khan Academy: Brain Teasers: Toggler Brain Teaser
Video explaining how to solve a brain teaser involving five people. Four of the people are togglers--they alternate between lying and telling the truth--and the fifth person always tells the truth. The goal of the teaser is to figure out...
Khan Academy
Khan Academy: Brain Teasers: Blue Forehead Room
Video explains the following brain teaser: One-hundred perfect logicians are blindfolded and each has their forehead painted blue. They all enter a room with the lights off, sit in a circle, and the lights are turned on. Each logician...
Khan Academy
Khan Academy: Brain Teasers: Light Bulb Switching Brain Teaser
Video explains how to solve the following brain teaser: One hundred light bulbs are arranged in a row. Each light bulb can be either on or off. On the first pass of the row, each bulb is switched on. On the second pass, every other bulb...
Khan Academy
Khan Academy: Brain Teasers: 3 D Path Counting Brain Teaser
Video explains how to solve the following brain teaser: Starting in the upper left rear block of a 3x3 cube, how many different ways are there to get to the bottom right front block of the cube, with movement restricted to moving to the...
Khan Academy
Khan Academy: Brain Teasers: Blue Forehead Room Solution
Video explains the solution to the following brain teaser: One-hundred perfect logicians are blindfolded and each has their forehead painted blue. They all enter a room with the lights off, sit in a circle, and the lights are turned on....
Khan Academy
Khan Academy: Brain Teasers: Path Counting Brain Teaser
Video explains how to solve the following brain teaser: Starting in the upper left hand corner of a 6x6 grid, how many different ways are there to get to the bottom right corner of the grid, with movement restricted to moving to the...
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