Texas Education Agency
Texas Gateway: Introduction to Logical Reasoning
This activity provides the opportunity to explore the validity of the converse, inverse, and contrapositive of statements. It also assists in recognizing the connections between biconditional statements and true conditional statements...
Texas Instruments
Texas Instruments: Logic Ladder App
As students work with two great activities - Factor and Classic, they learn how to use logic and reasoning skills.
Scholastic
Scholastic: Math Maven's Mysteries: Mystery at the Third Strike Sports Store
Solve a mystery using your reasoning skills. At this site use all the clues and figure out the winner of the Third Strike Contest.
Organization for Community Networks
Ofcn Lesson Plan: Deductive Reasoning
This OFCN lesson plan offers ideas for incorporating deductive reasoning problems into the classroom.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Logic and Proof Exercises
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"...
Oswego City School District
Regents Exam Prep Center: Logic
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....
University of Cambridge
University of Cambridge: Nrich: Got It
Sharpen your logical thinking and see if you can figure out the strategy to get to the target number before the computer.
Science Education Resource Center at Carleton College
Serc: Geo Logic: How Much of the State Is Wet
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...
Quia
Quia: Story Problems With Mixed Practice
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...
University of Cambridge
University of Cambridge: Nrich: Seven Pots of Plants
On this one page website sharpen your logic skills while working on this flower pot labels mix up challenge. The solution is available to double check your solution.
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.
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...
National Council of Teachers of Mathematics
Nctm: Figure This: Vcr
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...
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...
PBS
Pbs Learning Media: Logical Leaps: Fractions, Mixed Numbers, and Decimals on the Number Line
In this interactive, students use logic to solve three riddles involving a frog jumping contest and then place the contestants' jumps at the correct points on the number line. Numbers are randomized so that the frogs' placements on the...
PBS
Pbs Learning Media: Logical Leaps: Rational Numbers on the Number Line
In this interactive, use logic to solve riddles involving a wallaby jumping contest. Then, place each contestant's jump -- a fraction, mixed number, or decimal between -5 and +5 -- at the correct point on the number line. Backward jumps...
PBS
Pbs Learning Media: Logical Leaps: Fractions and Decimals From 0 to 1 on the Vertical Number Line
In this interactive, use logic to solve riddles involving a flea-jumping contest. Place each contestant's jump, represented by either a fraction or a decimal in both feet and inches, at the correct point on the vertical number line....
Discovery Education
Discovery Education: Brain Boosters
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...
Texas Instruments
Texas Instruments: Numb3 Rs: Tic Tac Toe
Based off of the hit television show NUMB3RS, this lesson focuses more on logic and deduction than on formal mathematics. The game of tic-tac-toe is simplified and given different variations, and in each variation students are to...
PBS
Pbs Learning Media: Odd Squad: Which Agent Are You?
This quiz from Odd Squad will teach your child algebraic thinking by using their deductive reasoning skills. Children can take the Odd Squad Quiz and find out if they are more like Agent Olive or Agent Otto? Or maybe they're like Ms. O....
University of Cambridge
University of Cambridge: Nrich: Instant Insanity
Excellent interactive challenge working with cube nets to stack them in a specific order. Manipulate the cubes online to solve the problem.
![Nctm: Figure This: The Race [Pdf] Activity](https://content.lessonplanet.com/knovation/original/21689-eb1624724f217ea0d5cca6ea1c84adce.jpg?1661255331 "Nctm: Figure This: The Race [Pdf] Activity")
National Council of Teachers of Mathematics
Nctm: Figure This: The Race [Pdf]
A challenge that combines skills in problem solving and logical reasoning. See if you can figure out who will win the race by determining the rate of speed of each runner. A one page activity from NCTM Math Challenges for Families...
National Council of Teachers of Mathematics
Nctm: Figure This: Keeping Cool
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...
University of Colorado
University of Colorado: Discrete Mathematics Project: Venn Diagram Activity
A lesson plan on the use of Venn diagrams for problem-solving.