- 1
What are our key examples of interesting families of integers?

- 2
What are rational and irrational numbers?

- 3
How can we manipulate numerical expressions involving surds?

- 4
How can we show that a number is rational or irrational?

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Resource type | Title |
---|---|

Rich example | Divide and conquer |

Building blocks | Ab-surd! |

Package of problems | A difference of two fractions |

Investigation | Irrational constructions |

Investigation | Staircase sequences |

Resource type | Title |
---|---|

Many ways problem | Prime triangles |

Scaffolded task | $\sqrt{2}$ is irrational |

Scaffolded task | Staircase sequences revisited |

Food for thought | Scary sum |

Investigation | What's possible? |

Bigger picture | Counting fractions |

Bigger picture | Death by number |

Bigger picture | Fractions everywhere |

Bigger picture | Irrational vs rational: does it matter? |