# Stage 3, mathematics, Year B – Unit 34

This 2-week, Year B unit develops the big idea that what needs to be measured determines the unit of measurement.

In this 2-week unit students are provided opportunities to:

• solve problems by comparing and measuring lengths and recording solutions using the appropriate units of measurement
• convert between common metric units of mass (grams, kilograms, tonnes) and lengths (millimetres, centimetres, kilometres)
• record lengths and distances using decimal notation
• make connections between benchmark fractions, decimals and percentages
• use efficient strategies to calculate the perimeter of various shapes.

### Syllabus focus and content groups

Additive relations A – MAO-WM-01, MA3-AR-01

Apply efficient mental and written strategies to solve addition and subtraction problems

Additive relations B – MAO-WM-01, MA3-AR-01

Applies known strategies to add and subtract decimals

Geometric measure B – MAO-WM-01, MA3-GM-02

• Length: Connect decimal representations to the metric system
• Length: Convert between common metric units of length
• Length: Solve problems involving the comparison of lengths using appropriate units

Non-spatial measure A – MAO-WM-01, MA3-NSM-01

Mass: Connect decimal representations to the metric system

Non-spatial measure B – MAO-WM-01, MA2-NSM-01

Mass: Convert between common metric units of mass

## Syllabus

Outcomes and content descriptors from Mathematics K–10 Syllabus (2022) © NSW Education Standards Authority (NESA) for and on behalf of the Crown in right of the State of New South Wales, 2024.

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