The Sudoku puzzle has been around for a while now, so I shouldn’t have to explain how to do them. If you want a quick activity to use as a mental warmup then a Sudoku puzzle could be just the thing.

One way to use them on your IWB would be to use the desktop annotation feature to write numbers directly over the top of an online Sudoku puzzle.

Alternatively, use the desktop capture tool to take a screengrab of the Sudoku puzzle and add it to your IWB flipchart page. This means you could stretch it to make it bigger – you could also print them off to have the students solve them individually, then solve it as a class on the IWB. You could quickly build up a bank of these by visiting every day and saving a new puzzle each time.

You could also use a table (or a spreadsheet) and produce your own Sudoku puzzles – then just type (or use Ink-Aware) to add the numbers directly into each cell.

One site I have found today is The Daily Sudoku. This gives you 2 different sudoku puzzles. One is a regular 1-9 Sudoku, but they also have a simpler 1-4 puzzle you can use with younger/lower ability children.

There is also an interactive version which you can play against the clock online – entering numbers directly onto the webpage.

You can even grab the code and host these puzzles yourself.

[print version]

Visit www.dailysudoku.com for more puzzles, solutions, hints, books and other resources.

[print version]

Visit www.dailysudoku.com for more puzzles, solutions, hints, books and other resources.

In theory if you bookmark this blog post, you should get a different sudoku puzzle every day.