Mathematics / Year 8 / Measurement

Curriculum content descriptions

solve problems involving the area and perimeter of irregular and composite shapes using appropriate units (AC9M8M01)

Elaborations
  • determining the area of composite shapes by composing or decomposing shapes
  • using arrays and rectangles to approximate the area of irregular shapes in situations such as a council needing to work out how much mosquito spray to use for a swamp area or a farmer needing to work out how much seed, fertilizer and herbicide are required to cover a paddock
  • determining the perimeter and area of irregular shapes by sums of increasingly accurate covering measurements, such as line segments and grids; for example, using millimetres or square millimetres as opposed to centimetres or square centimetres
General capabilities
  • Numeracy Numeracy
ScOT terms

Area,  Metres,  Square metres,  Irregular polygons,  Perimeter,  Dimensions

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