# Stage 3, mathematics, Year A – Unit 18

This unit develops the big idea that questions can be asked and answered by interpreting data.

## Syllabus

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.

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

- represent probabilities of outcomes of chance experiments using fractions, decimals and percentages, comparing predicted outcomes with observed results
- describe, interpret and pose questions about data presented in tables, column graphs, line graphs and timelines
- investigate how data representations can be misleading or biased.

**Represents numbers B – MAO-WM-01, MA3-RN-01**

Decimals and percentages: Make connections between benchmark fractions, decimals and percentages

**Data A – MAO-WM-01, MA3-DATA-01**

- Collect categorical and discrete numerical data by observation or survey
- Choose and use appropriate tables and graphs
- Describe and interpret different datasets in context

**Data B – MAO-WM-01, MA3-DATA-02**

- Interpret and compare a range of data displays
- Interpret data presented in digital media and elsewhere

**Chance A – MAO-WM-01, MA3-CHAN-01**

List outcomes of chance experiments involving equally likely outcomes and represent probabilities

**Chance B – MAO-WM-01, MA3-CHAN-01**

Compare observed frequencies of outcomes with expected results