AC9M5N05 Year 5 Mathematics

This Content Descriptor from Year 5 Mathematics provides the specific knowledge and skills students should learn. Use it to plan lessons, create learning sequences, and design assessments that align with the Australian Curriculum v9.

solve problems involving addition and subtraction of fractions with the same or related denominators, using different strategies

Elaborations

• 1 using different ways to add and subtract fractional amounts by subdividing different models of measurement attributes; for example, adding half an hour and three-quarters of an hour using a clock face, adding a \(\frac34\) cup of flour and a \(\frac14\) cup of flour, subtracting \(\frac34\) of a metre from \(2\frac14\) metres
• 2 representing and solving addition and subtraction problems involving fractions by using jumps on a number line, bar models or making diagrams of fractions as parts of shapes
• 3 using materials, diagrams, number lines or arrays to show and explain that fraction number sentences can be rewritten in equivalent forms without changing the quantity; for example, \(\frac12\) + \(\frac14\) is the same as \(\frac24\) + \(\frac14\)

Related Achievement Standards