**Task Name : **Golf Course Angles |
**Task Level : **I (Year 8) |

**Semester : **2 |
**Topic :** Angles |
**VC Strand :** Geometric Reasoning |

**Web Address : **http://maths.crusoecollege.vic.edu.au/grI |

**Equipment Needed : **Stiff card (a roll of corrugated cardboard is usually purchased), rulers, protractors. |

**Victorian Curriculum outcome : **Establish properties of quadrilaterals usingÂ congruent triangles and angle properties, and solve related numerical problems using reasoning |

**Task description :** Use the holes created in level H or create new holes: kite, trapezium, parallelogram and rhombus. Divide each quadrilateral into two. Use rules for congruence to decide if the triangles that form the quadrilaterals are congruence. Use a different rule for each quadrilateral (SSS, SSA, ASA, studentâ€™s choice for the 4th shape). |

**Assessment options : **Photographs of Golf Course Holes |

**Teacher notes : **Students tend to make the holes too small to measure accurately: a hole should be around half the size of an A4 sheet of paper. Encourage students to use colour or even little props to make their holes a bit more interesting and creative. |