Braingle
Braingle: Cryptography Brain Teasers
Test your critical thinking skills with a variety of cryptography brain teasers, phrases or expressions "encoded in some way." Solve the teasers provided at this site, and submit your own for others to try!
University of Cambridge
University of Cambridge: Nrich: Amy's Dominoes
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Street Party
Sharpen your logic and spatial sense skills while working on this challenge. Solution included.
Ducksters
Ducksters: Kid's Games: Rules of Checkers
Kids learn the basic rules and strategy of the game of checkers on this site.
Oswego City School District
Regents Exam Prep Center: Types of Sentences
What is "Logic"? What is a "Mathematical sentence"? This website provides definitions of both of these terms and defines examples of mathematical sentences ("open sentence" and "closed sentence") and provides examples of each. Use the...
National Council of Teachers of Mathematics
Nctm: Figure This: Don't Fall In
Have you ever wondered why manhole covers are round? Believe it or not, there is a logical, mathematical reason. See if you can figure it out in this NCTM Math Challenge for Families activity. A one-page activity with suggested life...
Khan Academy
Khan Academy: Does Free Will Exist?
Read a passage about free will and answer the critical analysis follow-up questions.
National Council of Teachers of Mathematics
Nctm: Figure This: Thirteen? Oh No! (Pdf)
If you're superstitious you may want to try this math challenge. Test your reasoning and number sense skills by finding out if there is a Friday the 13th every year. Discover how understanding number patterns and reasoning can be helpful...
ABCya
Ab Cya: Daisy's Plumber Puzzle
Daisy needs your help getting water to all the snoozing flowers! Use your plumber skills to rearrange the pipes so that the water flows from the faucet to the thirsty flower. The whole family will have fun with this puzzle game!
ABCya
Ab Cya: Rainbow Stacker
How high can you stack? Rainbow Stacker is a fast-paced stacking game that gets progressively more difficult. Tap or click to stack the colored blocks on top of one another as accurately as you can. Keep the blocks as large as possible,...
University of Canterbury
University of Canterbury: Cs Unplugged: The Turing Test
Explore how we might recognize whether a system is truly intelligent. It involves reasoning about what it means to be intelligent, and even what makes us human.
Fun Trivia
Fun Trivia: As Stubborn as a Mule
This 10-question game requires students to select an animal to complete a saying. Students are directed to double click their answer which brings up the correct answer and an explanation of the saying.
Other
Puzz.com's 1001 Best Puzzles: Brain Training Games: Analogies
These four self-scoring analogy tests include a number of open ended analogies to challenge your logic skills.
Khan Academy
Khan Academy: What Separates Science From Art?
Practice critical analysis and reasoning skills with this reading excerpt from the MCAT.
Khan Academy
Khan Academy: Post Colonialism in Papuan Culture
Read the passage "Post-Colonialism in Papuan Culture" and complete the related six-question quiz.
Khan Academy
Khan Academy: Puritan Society
Read and analyze the passage "Puritan society" and complete the related six-question quiz.
Khan Academy
Khan Academy: Sociology of Participation
Read the passage "Sociology of Participation" and then complete the six-question quiz.
Quia
Quia: Fact or Opinion?
This is a 30 question quiz on separating fact from opinion. Students read the statement and select fact or opinion. Java plugin is required.
University of Cambridge
University of Cambridge: Nrich: Seven Sticks
On this one page website sharpen your logic, triangle properties, and pattern recognition skills while working on this challenge. The solution is available to double check your solution.
National Council of Teachers of Mathematics
Nctm: Figure This: Pigeonhole Principle
What is the possibility that another student in your school will have your exact same initials? Try this math challenge using logical reasoning and the "Pigeonhole principle," to discover how this could actually happen. An engaging...
Indiana University
Indiana University: Science vs. Non Science
This mini-lesson at the Evolution and Nature of Science Institute site from Indiana University provides a criteria by which students can evaluate an idea or explanation for scientific credibility.
Other
Skeptic's Dictionary: Piltdown Hoax
Was the Piltdown Hoax proof that science is "bunk" or was it just a temporary detour demonstrating the fallibility and human quality of scientific knowledge? These pages explores why so many scientists appeared to be duped by the...
Other
Fallacy Files: Loaded Question
Good explanation of the logical fallacy known as the loaded question (also known as complex question, many questions, or plurium interrogationum). An example, explanation of the example, and links to additional resources are all provided...
Other
Fagler College/nas 111/scientific Methodology
Power Point presentation on scientific method for NAS 102 Human and Environmental Biology II.