Stage 3 Thinking mathematically resource

Mathematic-tac-toe

Watch the video to learn how to play

Transcript

OK, everybody, welcome back! We're here today to have a look at the game multiplication toss, which some people also call how close to 100. To play today I'm using a spinner, and I just made it by printing out a decagon and drawing lines across the opposite angles and labeling it from 0 to 9.

And I'm going to use my paper clip that I found in the drawer, and a pen and I can flick it...

Transcript coming soon.

Collect resources

You will need:

paper
2 coloured markers

Instructions

Decide which player will be the 'attacker' and who will be the 'defender'.
Players will take turns placing the numbers 1-9 into the grid. Each of these numbers can only be used once.
The aim of the game is for the 'attacker' to get 3 numbers in a row to add to exactly 15. This can be horizontally, vertically or diagonally.
However, the aim for the 'defender' is to stop the attacker from getting a total of 15.
The 'defender' can win once all the numbers have been used and none of the rows, columns or diagonals add to exactly 15.

Other ways to play

Try playing this game with the numbers 11- 19

Discussion

What would you suggest to be Michelle's next move as the attacker?

Once you have played the game, what could you do differently next time to increase your chances of winning?

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