Activity
University of Cambridge

University of Cambridge: Nrich: Mrs. Beeswax

For Students 3rd - 8th
This logic problem involves putting gold coins in plum pudding. A solution is available to check your results.
Activity
University of Cambridge

University of Cambridge: Nrich: Code Breaker

For Students 3rd - 8th
Do your logic skills need sharpening? Use the interactive code breaker to at this one page website to do just that! The solution is available to double check your solution.
Activity
University of Cambridge

University of Cambridge: Nrich: Whose Face?

For Students 3rd - 8th
This is a logic and reasoning problem to help you sharpen your problem solving skills on this one page website. Now just "face" it and see if you can find the solution to "Whose Face"!
Activity
University of Cambridge

University of Cambridge: Nrich: Chocs, Mints, Jellies

For Students 3rd - 8th
On this one page website, logic and other problem solving skills will help you find a variety of solutions to this sweet dilemma. The University of Cambridge provides possible solutions to aid you in your decision making.
Activity
University of Cambridge

University of Cambridge: Nrich: Zargon Glasses

For Students 3rd - 8th
On this one page website using logic you can help Zump figure out which combination of glasses go to which members of the 9 families who ordered glasses one day. Check your answer against the solution provided by the website.
Activity
University of Cambridge

University of Cambridge: Nrich: Train Timetable

For Students 3rd - 8th
Reasoning will help you figure out the timetable for the trains in this problem. Construct a table and see if it matches the solution this one page website provides.
Activity
University of Cambridge

University of Cambridge: Nrich: Home Time

For Students 3rd - 8th
Use the clues and logic to solve this car pool problem. The solution provided allows you to check your results.
Activity
University of Cambridge

University of Cambridge: Nrich: Three Block Tower

For Students 3rd - 8th
At this one page website you have to use your logic. Then you can figure out how many towers can be built using three different colored blocks without repeating any color sequence.
Activity
University of Cambridge

University of Cambridge: Nrich: Mixed Up Socks

For Students K - 1st
Your reasoning skills will come in handy as you find solutions to these "sock" problems. Solutions are available on this one page website.
Activity
University of Cambridge

University of Cambridge: Nrich: Snails' Trails

For Students 3rd - 8th
Follow the guidelines and figure out the logic needed to bring these two snails together! A solution is available to check your results.
Activity
University of Cambridge

University of Cambridge: Nrich: Calendar Cubes

For Students 3rd - 8th
Solve this problem using your reasoning problem solving skills. The solution is available on this one page website.
Activity
University of Cambridge

University of Cambridge: Nrich: Team Scream

For Students 3rd - 8th
This logic problem will require you to figure out a variety of combinations. The solution is available on this one page NRich website.
Interactive
University of Cambridge

University of Cambridge: Nrich: Got It

For Students 1st - 8th
Sharpen your logical thinking and see if you can figure out the strategy to get to the target number before the computer.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Pigeonhole Principle

For Students 3rd - 8th
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...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Keeping Cool

For Students 3rd - 8th Standards
Is it better to by block ice or crushed ice? Use your logical reasoning and measurement skills to solve this challenge that compares surface area of block ice and the same block cut into three cubes. A one page activity from the NCTM...
Activity
University of Toronto (Canada)

Question Corner: Deductive and Inductive Reasoning

For Students 9th - 10th Standards
A simple discussion of the differences between inductive and deductive reasoning. Helpful to anyone who is having difficulty differentiating between the two.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Vcr

For Students 3rd - 8th
This resource presents an interesting challenge for the serious mathematician with strong reasoning skills. Explore proportional reasoning, probabilities, fractions, and ratios in this challenge to figure out if you always get six hours...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Thirteen? Oh No! (Pdf)

For Students 3rd - 8th Standards
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...
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Don't Fall In

For Students 3rd - 8th
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...
Lesson Plan
PBS

Pbs Mathline Lesson: Mix It Up [Pdf]

For Teachers 3rd - 5th
A lesson based on the story, "Oliver's Fruit Salad," where students explore the concept of proportional reasoning through modeling, student sharing, and questioning. A great introductory lesson for this concept that is sure to engage...
Whiteboard
ClassFlow

Class Flow: Mental Math

For Teachers 5th - 7th
[Free Registration/Login Required] This flipchart is a group of one page starter exercises that require students to use logic to find the solution.
Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: The Value of Two Column Proofs

For Students 9th - 10th Standards
This site explains why we prove things. The explanation gives real world scenarios and an everyday example of why we should learn how to prove things.
Activity
University of Cambridge

University of Cambridge: Nrich: Instant Insanity

For Students 3rd - 8th Standards
Excellent interactive challenge working with cube nets to stack them in a specific order. Manipulate the cubes online to solve the problem.
Activity
Discovery Education

Discovery Education: Brain Boosters

For Teachers Pre-K - 1st
Discovery School offers a terrific "categorized archive of challenging Brain Boosters." Choose from hundreds of engaging activities pertaining to Categorization, Lateral Thinking, Reasoning, Logic, Word and Letter Play, Spatial...

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