Year 4 Technologies – Term 1 (WA Curriculum): Digital Systems and Data Safety

What this unit covers

In Term 1, Year 4 Technologies in the WA Curriculum centres on the unit “Digital Systems and Data Safety”.

Students explore how data is represented in different ways and learn to protect their personal information when using digital systems.

Lesson sequence (8 lessons)

The unit breaks down into the following lesson-by-lesson sequence — each title below is a teachable lesson, in order:

1. Exploring Different Types of Data Around Us
2. Numbers in Many Forms - Same Data, Different Ways
3. Pictures, Sounds and Text - Choosing the Right Data Type
4. When Data Representation Matters Most
5. What is Personal Data and Digital Identity?
6. How Photos and Posts Reveal Our Secrets
7. Understanding Age Limits on Apps and Websites
8. Keeping Our Digital Selves Safe Online

Curriculum codes in this unit

Content codes:

Reading the codes: WA codes (the ones starting with WA) pack the year level, learning area, strand and content number into one string, while the national Australian Curriculum v9 uses a different anatomy that starts with AC9 — same content family, different labels. Our complete WA Curriculum guide decodes both, character by character.

Planning notes for Term 1

WA terms run roughly 9–11 weeks, and in 2026 Term 1 runs from Monday 2 February to Thursday 2 April — 9 weeks for WA public schools. With 8 lessons in this unit, that leaves breathing room for assessment, moderation and the weeks that disappear to carnivals, camps and public holidays — plan the assessable work to land two to three weeks before the end of term rather than in the final week.