Sophia Learning
Sophia: Critical Reading as a Learning Strategy
This tutorial focuses on critical reading using a downloadable PowerPoint presentation, "Critical Reading 101," which includes separating fact from opinion, 6 propaganda techniques, and 6 common fallacies in reasoning. Also provided is...
Texas Instruments
Texas Instruments: Numb3 Rs: Driving With Djikstra
Based off of the hit television show NUMB3RS, this lesson introduces students to one of the prominent algorithms in graph theory used to find shortest paths -- the Djikstra Algorithm. The lesson includes four graphs of increasing...
University of Colorado
University of Colorado: Discrete Mathematics Project: Venn Diagram Activity
A lesson plan on the use of Venn diagrams for problem-solving.
Other
Responsible Thinking: Analyzing Arguments and Evidence
Contains many points to consider when analyzing someone's arguments and evidence, such as the hidden assumptions, cultural assumptions, and testability. Each is explained in a short paragraph with a link to additional discussions on...
University of Cambridge
University of Cambridge: Nrich: Spelling Circle
On this one page website use trial and error to find the words hidden in the spelling circles. Check your solution right at the website.
University of Cambridge
University of Cambridge: Nrich: What's It Worth?
Use this one page website to practice the problem solving strategy of trial and error! The solution is available right at the website.
University of Cambridge
University of Cambridge: Nrich: Buckets of Thinking
Trial and error is just one of the problem solving strategies that you could use to solve this bucket problem. After you finish view the solution at this one page website.
University of Cambridge
University of Cambridge: Nrich: 1 to 8
Use the clues and problem solving strategy, trial and error, to solve this problem. When you have your solution you can check it right on this one page website.
Disfruta Las Matematicas
Disfruta Las Matematicas: Puzzles De Logica
This site contains many logic puzzles. It could be used as fun supplementary materials. Solutions are also provided.
ClassFlow
Class Flow: Sliding Puzzle
[Free Registration/Login Required] In this lesson students use the interactive drawing tools in Activstudio to develop their geometric sense by solving a sliding puzzle using different colored squares.
University of Cambridge
University of Cambridge: Nrich: Augustus' Age
Use a simple formula to help you figure out the age of the mathematician Augustus de Morgan. When done, check your results against the solution.
University of Cambridge
University of Cambridge: Nrich: Brothers and Sisters
Figure out the ages of the children in this family using the clues and your sound algebraic thinking. Check the solution after you complete the problem.
University of Cambridge
University of Cambridge: Nrich: Gift Stacks
Figure out how many gifts are in each stack using the clues that are given. The solution is available at this one page website.
University of Cambridge
University of Cambridge: Nrich: Eggs in Baskets
At this one page website you will not be carrying all your eggs in one basket. Use the clues to figure out how many eggs are in each of the baskets listed. When you have your solution check to see if it is the same as the one available...
University of Cambridge
University of Cambridge: Nrich: How Many Eggs?
Use the clues at this one page website to figure out just how many chocolate eggs each child will receive. The solution is available when you figure it out.
University of Cambridge
University of Cambridge: Nrich: Domino Square
Use your problem solving skills and move the dominoes around on the square so that each side has only eight dots. When you are finished you can check your answer against theirs right at this one page NRich website.
University of Cambridge
University of Cambridge: Nrich: 4 Dom
On this one page website move the domino pieces around until you satisfy the rules for this challenge. This will require you to use your problem solving skills.
University of Cambridge
University of Cambridge: Nrich: Mind Reader
This series of operations always yields the same answer. Use your problem solving and algebraic skills and see if you can find the solution. When you have you can check the solution on this one page website.
Quia
Quia: Nature of Science Scientific Method Concentration
Play a game of concentration by matching terms used in the scientific method to their proper description.
Khan Academy
Khan Academy: Identify the Technique Quick Guide
A quick LSAT prep guide to approaching questions that ask you to "identify the technique" where you are being asked to describe the reasoning of an argument: the way it uses support to justify a conclusion.
Other
Websudoku
A fun puzzler to get any mind thinking logically! Try many levels of puzzles using the following rules: "Enter digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every column, as must every 3x3...
Other
Sudoku Puzzles
This site offers many uses for Sudoku, including free online puzzles, free puzzles for school publication, and it gives the history of Sudoku.
Other
Wsu: Improving Your Argument
Students writing persuasive essays run the risk of using inaccurate or illogical reasoning. This site by Weber State University provides pointers to help eliminate this problem. Several dos's and don'ts are given, as are 14 common...
Khan Academy
Khan Academy: The Honest Truth About Dishonesty
This is a four-problem practice question for the CARS test using the article "The Honest Truth about Dishonesty."