University of Cambridge
University of Cambridge: Nrich: Eleven?
Only by replacing these letters with the correct digits can you make this problem add up correctly! The solution is located right at this one page website.
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: Magic Circles
Use your problem solving skills to figure out this challenge. A number of solutions are available right at this one page website.
University of Cambridge
University of Cambridge: Nrich: Number Juggle
Use those problem solving skills to find a solution to this triangle problem. When you have your solution you can check it right on this one page website.
University of Cambridge
University of Cambridge: Nrich: Money Bags
Practice your problem solving skills while you help Ram figure out how many pennies to put in each bag. The solution is right on this one page website.
Education Place
Houghton Mifflin: Eduplace: Extra Practice Quiz Which Spinner Is Fair?
Decide which spinner is fair for each of the probability examples presented. Read the interactive quiz rules and then click on the "Begin" ticket. If you answer incorrectly you get one more chance to try again then you are told the...
SEN Teacher
Sen Teacher: Magic Wood
Generate and print out various worksheets with "magic squares", ones that are complete and ones that have blanks to be filled in by students.
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...
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.
University of Cambridge
University of Cambridge: Nrich: Cubes Within Cubes
On this one page website sharpen your logic, geometry, spatial thinking, and problem solving skills while working on this challenge. The solution is available to double check your solution.
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.
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...
University of Cambridge
University of Cambridge: Nrich: A Conversation Piece
On this one page website sharpen your logic, division and prime number recognition skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Where Are They?
Test your logic, polygon properties, and pattern recognition skills working on this challenge. Solution included.
University of Cambridge
University of Cambridge: Nrich: Transformations on a Pegboard
This one page website can expand your logic, Motion Geometry and pattern recognition knowledge. The solution is available to double check your answers.
ClassFlow
Class Flow: Congruence in Triangles
[Free Registration/Login Required] This lesson helps teach congrence in triangles. Includes practice with postulates, theorems, and logical reasoning.
![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...
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...