AC9M5N08
Year 5
Mathematics
AC9M5N08 | Year 5 Mathematics: Number
Content Descriptor
Content descriptor check and explain the reasonableness of solutions to problems including financial contexts using estimation strategies appropriate to the context
Strand
Number
Substrand
Number
This content descriptor sets out learning for Year 5 Mathematics. Use it to plan lessons and assessment with the Australian Curriculum v9.
Elaborations
- • Elaboration interpreting a series of contextual problems to decide whether an exact answer or an approximate calculation is appropriate; explaining their reasoning in relation to the context and the numbers involved
- • Elaboration recognising the effect of rounding addition, subtraction, multiplication and division calculations, rounding both numbers up, both numbers down, and one number up and one number down; explaining which estimation is the best approximation and why
- • Elaboration considering the type of rounding that is appropriate when estimating the amount of money required; for example, rounding up or rounding down when buying one item from a store using cash, compared to rounding up the cost of every item when buying groceries to estimate the total cost and not rounding when the financial transactions are digital
Plan a lesson from this content description.
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