**Angles, Construction and Congruence**

This unit of work builds on work from Year 7 Spring 1 Lesson 4. As the current Year 9 will not have had this lessons, I have included it here as the first lesson. Lesson 9 is also taken from the Year 7 scheme.

Lesson 1 |
Vertically opposite angles and angles in parallel lines |

Lesson 2 |
Corresponding, alternate and interior angles |

Lesson 3 |
Angles on parallel lines |

Lesson 4 |
Constructing polygons |

Lesson 5 |
Interior angles of polygons |

Lesson 6 |
Exterior angles in polygons |

Lesson 7 |
Solving problems using angles in polygons |

Lesson 8 |
Tessellations |

Lesson 9 |
Constructing triangles ASA and SAS |

Lesson 10 |
Constructing triangles SSS |

Lesson 11 |
Introduction to congruence |

Lesson 12 |
Constructing an angle bisector |

Lesson 13 |
Constructing a perpendicular from a point |

Lesson 14 |
Constructing a perpendicular bisector |

Lesson 15 |
Constructing angles (30°, 60° etc) |

Revision Quiz Spring 1 – End of Unit Progress Check Follow Up Lesson

** Year 9 Spring 1 Mark Scheme**