# Multi-age 3–6, mathematics, Year B – Unit 14

This multi-age 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:

• interpret commonly used fractions of a kilogram, including one half, one quarter, 3 quarters and relate these to the number of grams (Stage 2)
• select and use appropriate units to estimate, measure, compare and record lengths and masses
• convert between common metric units of mass and length
• use efficient strategies to calculate the perimeter of various shapes
• make connections between benchmark fractions and decimals (Stage 2 and 3) and percentages (Stage 3 only).

## Syllabus focus and content groups

### Stage 2

#### Representing numbers using place value B – MAO-WM-01, MA2-RN-02

Decimals: Extend the application of the place value system from whole numbers to tenths and hundredths

#### Geometric measure B - MAO-WM-01, MA2-GM-02

Use scaled instruments to measure and compare lengths

#### Non-spatial measure A - MAO-WM-01, MA2-NSM-01

Mass: Compare objects using the kilogram

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

Mass: Use scaled instruments to measure and compare masses

### Stage 3

#### 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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