This is a game for two players (or a class split into two teams).

Take it in turns to choose one of the numbers 1 to 9. It is now your number and your opponent cannot choose it. Each number can be chosen only once.

To win, be the first to pick 3 numbers that add up to 15.

Games may end in a draw if all the numbers have been chosen and nobody can make 15.

Siege and Pat the Pig are similar games. In Siege players aime to claim 3 roads through the same town. In Pat the Pig players aim to get 3 words that contain the same letter. In all the games there are 8 different ways of getting a winning set of three.

The FIFTEEN GAME Inclusion and Home learning Guide suggests learning activities for all ages from 5 to 18+.

The theme of Mathematical Disguises (Isomorphism) is important in mathematics.

Click here for the Notes for Teachers.

Resources: Number cards with numbers 1 to 9.

PRIZE TO BE AWARDED: A COPY OF THE BOOK ‘LET’S PLAY MATHEMATICALLY AIMING HIGH GAMES’ will be awarded on 1st March 2024 to the teacher who contributes most to the comments sections about the games on this AIMING HIGH website. Register on AIMING HIGH so that you can share ideas about how you experienced the game, either playing with your family at home, or with a class in school, or in a Math’s Club. Please share ideas about how the other players responded and also about learning mathematics through playing games. Critical comments and suggestions for improvement will be much appreciated, especially if we get them before the book goes to press.

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### One Response to Fifteen Game Collection

1. BubblyMaths says:

Apart from the obvious number bonding and pattern recognition needed for these games, there is a deeper pattern to spot, and that is the connection between all the games.

Some learners find the games themselves too easy but are challenged by the deeper puzzle of investigating and analysing the connection, discovering isomorphism for themselves.

Spotting connections is a key skill in mathematics and these games help develop awareness of it.

Always be on the lookout for connections, it can save so much work and help enormously when you discover a new topic isn’t as new as it appears.

The inclusion guide is a fantastic resource to help with learners at all attainment levels. You don’t have to be an expert in the topic, the inclusion guide takes you through what to do and why.