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."
Khan Academy
Khan Academy: The Happy American
This is a four-problem practice question for the CARS test using the article "The Happy American."
National Council of Teachers of Mathematics
Nctm: Figure This: Gone Fishing (Pdf)
Use your algebraic reasoning to solve this math challenge that explores the relationship between quantities and weights. Try this math challenge from the NCTM Math Challenges for Families series. Also, discover how mastering this skill...
Khan Academy
Khan Academy: The Human Footprint in Mexico
This is a four-problem practice question for the CARS test using the article "The Human Footprint in Mexico".