University of Cambridge
University of Cambridge: Nrich: Konigsberg Plus
See if you can solve this classic problem that Leonhard Euler first presented in 1736. Use the interactive section of this website to help you.
ClassFlow
Class Flow: Logic and Reasoning
[Free Registration/Login Required] This flipchart defines logical conditional statements in a hypothesis and conclusion formula. Using the if-then model, students will determine hypotheses and conclusions.
ClassFlow
Class Flow: Logic Puzzles
[Free Registration/Login Required] This flipchart is a series of logic puzzles. Students use the information provided to find the solution to each puzzle.
Student Achievement Partners
Illustrative Mathematics: Riding at a Constant Speed [Pdf]
Assess students understanding of proportional relationships with this assessment using speed.
PBS
Pbs Mathline: What's Your Angle? Lesson Plan [Pdf]
Use an angle wheel to make estimates of the measures of various angles. Printable instructional activity.
Alabama Learning Exchange
Alex: Tan Ii
The Chinese character mark for Tan II (pronounced she-tow-bah) is the second of two lessons to introduce first grade students to geometry using tangrams. This lesson incorporates history, math, and language arts. In this lesson students...
US Department of Education
Helping Your Child Learn Math: Math for the Fun of It
This compilation of math activities engages parents and children in the use of math whenever they are at home. Packed with concise, high interest activities, related illustrations, detailed "parent pointers," and easy to following...
ClassFlow
Class Flow: Matchstick Puzzles
[Free Registration/Login Required] In this Flipchart, students use logic and mathematical reasoning to visually solve problems using matchsticks. Students develop their sense of pattern recognition, and pattern disruption, and then apply...
Oswego City School District
Regents Exam Prep Center: Conjunction: And
Learn what a conjunction is and why it is important to know what a conjunction is when using logic to solve mathematical problems. This website includes examples of the conjunction "and" used in mathematical sentences and a "truth table."
ClassFlow
Class Flow: Mental Math
[Free Registration/Login Required] This flipchart is a group of one page starter exercises that require students to use logic to find the solution.
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...
Sophia Learning
Sophia: Supporting Details Explained
This slideshow focuses on supporting details; it discusses their purpose, the audience, and the point to be made. It lists the five most common types of supporting details: facts, statistics, opinions, examples, and personal observations...
Sophia Learning
Sophia: Supporting Details
This tutorial focuses on supporting details using a video of a paragraph from a book showing the topic sentence and two strong, reliable, supporting details. This is followed by a slideshow that stresses the need for variety in the types...
Read Works
Read Works: Fact and Opinion Kindergarten Unit: Opinion
[Free Registration/Login Required] A lesson using Animal Touch by Kirsten Hall to teach students to form opinions based on information found within informational texts. Includes ideas for teaching, guided practice, and independent...
University of Cambridge
University of Cambridge: Nrich: Hand Span
Use this one page website to practice measuring things using nonstandard units of measurement. There is a solutions page that is right at the website for more information.
University of Cambridge
University of Cambridge: Nrich: A Flying Holiday
Some may think this problem is for the birds but you will need to use your problem solving skills to come up with a reasonable answer. Then check this one page website for the solution.
University of Cambridge
University of Cambridge: Nrich: Dining Ducks
This problem will quack you up. On this one page website use those problem solving skills to check the reasonableness of your answer. The solution is available right at the website.
National Council of Teachers of Mathematics
Nctm: Figure This: Tan, Don't Burn
How about a math challenge for a sunny day at the beach? Apply your problem solving, number sense, and logical reasoning skills to find out how long it would take Helix to get sunburned using SPF 10 lotion. Discover why understanding...
University of Cambridge
University of Cambridge: Nrich: Game Khun Phaen Escapes to Freedom
This interactive game is based on a famous character in a Thai legend. See if you can figure out how he escaped! You will have to use your problem solving and spatial relationship skills to figure out this one.
University of Cambridge
University of Cambridge: Nrich: A Rod and a Pole
At this one page website work on this challenge using your very best problem solving skills to find a reasonable answer. Actually, there are a number of solutions. When you find yours check the website to see the solutions already listed.
University of Cambridge
University of Cambridge: Nrich: Magic Triangle
Use your problems solving skills to make everything add up correctly for this challenge. The solution is right at this one page website.
University of Cambridge
University of Cambridge: Nrich: Butterfly Flowers
This one page website offers a challenge that will require you to use your problem solving skills. There are teacher tips and the solution available to help.
University of Cambridge
University of Cambridge: Nrich: Magic Circles
Use your problem solving skills to figure out this challenge. A number of solutions are available right at this one page website.