AC9M9SP02
Year 9
Mathematics
AC9M9SP02 | Year 9 Mathematics: Space
Content Descriptor
Content descriptor apply the enlargement transformation to shapes and objects using dynamic geometry software as appropriate; identify and explain aspects that remain the same and those that change
Strand
Space
Substrand
Space
This content descriptor sets out learning for Year 9 Mathematics. Use it to plan lessons and assessment with the Australian Curriculum v9.
Elaborations
- • Elaboration comparing the ratio of lengths of corresponding sides of similar triangles and angles
- • Elaboration using the properties of similarity to solve problems involving enlargement
- • Elaboration investigating and generalising patterns in length, angle, area and volume when side lengths of shapes and objects are enlarged or dilated by whole and rational numbers; for example, comparing an enlargement of a square and a cube of side length 2 units by a factor of 3 increases the area of the square, 2^2, to (3\times2)^2 = 9\times 2^2=9 times the original area and the volume of the cube, 2^3, to (3\times2)^3=27\times 2^3=27 times the volume
Plan a lesson from this content description.
Start freeAchievement standard statements this supports
- They use mathematical modelling to solve practical problems involving direct proportion, ratio and scale, evaluating the model and communicating their methods and findings.See it on the standard page →
- They apply the enlargement transformation to images of shapes and objects, and interpret results.See it on the standard page →