Sudoku is not maths (as opposed to magic squares, which are!) and is universally understandable. It is generally done by filling in numbers (or alternatively, symbols, pictures or letters) to allow a logical solution to be discovered. We can see Sudoku’s place as an educational tool or extension of a child’s ability to play with numbers and not fear them. Everyone should Sudoku, at least once….
Simply, Sudoku (single number) is a 9x9 grid divided into 3x3 sub grids with a few ‘given’ numbers as hints. They vary from very easy (www.sudokukingdom.com/very-easy-sudoku.php) to general Sudoku (www.sudoku.com.au) both links give online versions as well as printables. Warning: these can be addictive; do not try if you have to do something with your kids soon.
The topic of Sudoku addiction pops up frequently due to the ease of availability of Sudokus online, in newspapers (also heralded as the saviour of paper newspapers due to their ability to meet the daily fix) and cheap or free access in every corner of life. I even remember one Christmas where I was given Sudoku toilet paper! The sense of accomplishment is the part which gives the real addictive aspect to Sudoku and for kids, this is the key to giving an opportunity where numbers are fun not just school work.
I can personally attest to the fact that for short periods, Sudoku can be addictive, I remember not wanting to go shopping or to go and play with the kids until I had finished the Sudoku I was doing or feeling fed up as I scrumple another section of the newspaper into a ball as the Sudoku was obviously broken!! For kids, the ability to deal with success and failure on a small scale should also be a good thing.