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: 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...
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...
Khan Academy
Khan Academy: Brain Teasers: Blue Forehead Room Brain Teaser
What happens when 100 perfect logicians have to figure out if they each have a blue forehead?
Khan Academy
Khan Academy: Worked Example: The Happy American
The purpose of this video is to demonstrate how to approach reading and answering questions using an example from the critical analysis and reasoning skills section of the MCAT. [18:21]
Khan Academy
Khan Academy: Worked Example: The Honest Truth About Dishonesty
The purpose of this video is to demonstrate how to approach reading and answering questions using an example from the critical analysis and reasoning skills section of the MCAT. [27:52]
Khan Academy
Khan Academy: Worked Example: Seeing Color Through Homer's Eyes
The purpose of this video is to demonstrate how to approach reading and answering questions using an example from the critical analysis and reasoning skills section of the MCAT. [20:24]
Khan Academy
Khan Academy: Identify an Entailment Video Lesson
Watch a demonstration of one way to approach questions that ask you to identify an entailment that would follow logically from a series of statements. [8:40]
Khan Academy
Khan Academy: Identify the Technique Video Lesson
Watch a demonstration of how to approach a question that asks you to identify the technique on the logical reasoning section of the LSAT. [6:44]
Khan Academy
Khan Academy: Identify the Principle Worked Example
Watch a demonstration of one way to approach questions that ask you to identify a principle from a stimulus at work in other situations. [3:38]
Khan Academy
Khan Academy: Identify the Principle Video Lesson
Watch one way to approach questions that ask you to identify a principle that is reflected by an argument in the logical reasoning section of the LSAT. [7:13]
Khan Academy
Khan Academy: Identify a Flaw Worked Example
Watch a demonstration of one way to approach a 'Flaw' question on the logical reasoning section of the LSAT. [5:02]
Khan Academy
Khan Academy: Identify a Flaw Video Lesson
Watch an explanation of how to approach identify the flaw questions on the Logical Reasoning section of the LSAT. [7:36]
Khan Academy
Khan Academy: Identify the Role Video Lesson
Watch a demonstration of how to approach questions that ask you to identify the role a statement plays in a passage on the Logical Reasoning section of the LSAT. [7:24]
Khan Academy
Khan Academy: Reasoning Beyond the Text
This video lesson from Khan Academy and the Association of American Medical Colleges provides study content for the MCAT. The purpose of this video is to help you understand the reasoning beyond the text questions a bit better these are...
Khan Academy
Khan Academy: Purpose of Reference Law Passage Copyright
This video lesson from Khan Academy provides practice questions for the LSAT. Watch a demonstration of one way to approach a 'purpose of reference' question on the reading comprehension section of the LSAT.
Khan Academy
Khan Academy: Cars Overview
This video resource from Khan Academy and the Association of American Medical Colleges provides study content for the MCAT. The MCAT's new section called the "Critical Analysis and Reasoning Skills" is discussed on the video overview.
Khan Academy
Khan Academy: Worked Example: Physical Education in the Uk
The purpose of this video is to demonstrate how to approach reading and answering questions using an example from the critical analysis and reasoning skills section of the MCAT. [15:09]