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Problems in the Points Contest of Ko Mal

For Students 9th - 10th
Learn about the annual KoMal competition in mathematics, physics, and information technology, and challenge your ability to solve problems involving advanced algebra, logic, and other related topics through the tests provided at this site.
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
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
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Logic and Proof Exercises

For Students 9th - 10th Standards
Twenty-five problems cover the topic of logic and proof in different geometry settings. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution"...
Unit Plan
Oswego City School District

Regents Exam Prep Center: Logic

For Students 6th - 8th
Understanding mathematical language in problem solving can be a difficult concept to grasp. Sharpen your logical reasoning skills at this test prep site that explains the terms: if, and, or, implies, and only if, as they relate to math....
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Geo Logic: How Much of the State Is Wet

For Teachers 9th - 10th
Using investigation and inquiry skills, students match classmates with their home state, and their states with the area and percentage of area of surface water that they contain, as well as where each of the states rank nationally in...
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Graphing Calculator Practice Problems: Logic and Proof

For Students 9th - 10th
Practice using your graphing calculator for logic and proof problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
Interactive
Quia

Quia: Story Problems With Mixed Practice

For Students 3rd - 8th
Your problem-solving skills are put to the test in this interactive word problem game on this site. Employ a variety of mathematical skills and strategies including logical reasoning and computation. Multiple choice problems created for...
Activity
PBS

Pbs Learning Media: Fresh Pick Challenge: Logical Lunch

For Teachers 1st - 3rd
By using their deductive reasoning skills, children can help Henry and Avril pack a perfect picnic lunch. This activity will provide them with ways to use clues to solve a problem, group objects based on several attributes, and...
Interactive
Braingle

Braingle: Logic Brain Teasers

For Students 9th - 10th
Think logically as your solve the brain teasers provided on this page. Test your own logic skills with the puzzles that you can sort by popularity and difficulty, and test others' logic skills by submitting your own puzzles.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Geo Logic: Stream Discharge Rates Rappahannock River Station

For Teachers 9th - 10th
Using problem solving methods and GEOLogic questions, students are asked to convert measurements in cubic feet per hour to cubic feet per second, and then match the names of the researchers measuring the flows at a river station with the...
Website
Mensa Espana

Mensa Espana: Lista De Problemas

For Students 9th - 10th
Spanish content. An extensive compilation of logic and reasoning problems approved by MENSA. Problems are arranged according to difficulty. Each problem is linked to it's solution. A terrific resource for extention and supplemental...
Activity
Scholastic

Scholastic: Math Maven's Mysteries: Mystery at the Third Strike Sports Store

For Teachers 3rd - 5th
Solve a mystery using your reasoning skills. At this site use all the clues and figure out the winner of the Third Strike Contest.
Activity
Wolfram Research

Wolfram Math World: Foundations of Mathematics: Topics

For Students 9th - 10th
This math tutorial site covers set theory, axioms, category theory, logic, mathematical problems, and point-set topology.
Website
Other

Juegos, Acertijos, Y Recreaciones Matematicas

For Students 9th - 10th
In Spanish. A variety of logic problems, including puzzles and word problems with links to the answers. An excellent site to engage Spanish speaking students.
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: 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.
Activity
University of Cambridge

University of Cambridge: Nrich: Seven Square Numbers

For Students 3rd - 8th Standards
On this one page website sharpen your logic, square numbers, and problem solving skills while working on this challenge. The solution is available to double check your solution.
Interactive
University of Cambridge

University of Cambridge: Nrich: Cycling Squares

For Students 6th - 8th
On this one page website sharpen your logic, square number, and problem solving skills while working on this challenge. The solution is available to double check your solution.
Activity
University of Cambridge

University of Cambridge: Nrich: Roll These Dice

For Students 3rd - 5th
Sharpen your problem solving, sequencing, and spatial reasoning skills playing this interactive game, Roll The Dice. See how many different paths you can take to end up with the same result.
Activity
University of Cambridge

University of Cambridge: Nrich: Special 24

For Students 3rd - 8th Standards
On this one page website sharpen your logic, square number, and problem solving skills while working on this challenge. The solution is available to double check your solution.
Activity
University of Cambridge

University of Cambridge: Nrich: Octa Space

For Students 3rd - 4th Standards
At this one page web site see if you can solve this puzzle involving the edges of an octahedron. You will definitely need to use your problem solving and spatial reasoning skills for this!
Activity
University of Cambridge

University of Cambridge: Nrich: Penta Place

For Students Pre-K - 1st
Sharpen your logic and pattern recognition skills while working on this challenge. Solution included.
Activity
University of Cambridge

University of Cambridge: Nrich: Routes 1 and 5

For Students 3rd - 8th Standards
Sharpen your logic and basic arithmetic skills while working on this challenge. Solution.

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