Task Name : Golf Course Angles 
Task Level : J (Year 9) 
Semester : 2 
Topic : Angles 
VC Strand : Geometric Reasoning 
Web Address : http://maths.crusoecollege.vic.edu.au/grJ

Equipment Needed : Stiff card (a roll of corrugated cardboard is usually purchased), rulers, protractors. 
Victorian Curriculum outcome : Use the enlargement transformation to explain similarity and develop the conditions for triangles to be similar; Solve problems using ratio and scale factors in similar figures 
Task description : Create a scalene triangle golf hole. Create a similar triangle that is 1.5 times bigger. Create a third similar triangle where the longest side is 20cm. 
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. 