Matt Parker has launched Matt Parker's Maths Puzzles! Once a week Matt makes a puzzle video, in addition to his normal Stand-up Maths videos.
Viewers can submit their solution to each puzzle online to receive points and appear in a puzzle participants league table. See the information about points and league table here.
Here is a sample puzzle that calls for an investigation of a game called Avoid the Square.
Fun for all ages.
There are options to play puzzles or to build your own. We have seen these used from elementary school to high school. These puzzles go a long way in developing those beginning ideas of balancing in equation solving.
Skyscraper puzzles:
Wonder in Mathematics: Skyscrapers
Looking for manipulatives and don’t have lego or unit cubes on hand? Download and print these cylinders (or create your own).
Binary Puzzles (online)
Printable Puzzles, Mazes and More from KrazyDad: Here you will find a wealth of both pencil and paper printables along with interactive puzzles involving games like Sudoku, Kakuro, Masyu, Binary Puzzles
The Guardian Crosswords (and other puzzles, too)
Alex Bello's Monday Puzzle (The Guardian)
New York Times (scroll to get free KenKen, SET, Sudoku, and a handful of crosswords)
And no talk of puzzles should take place without a nod to Martin Gardner!
If you have a favourite puzzle activity not featured here, please share it with us. Thanks!