Year 3 Mathematics – Term 4 (WA Curriculum): Division and More

What this unit covers

In Term 4, Year 3 Mathematics in the WA Curriculum centres on the unit “Division and More”.

Term 4 Mathematics for Year 3. Focus areas: division, decimals intro. Aligned with WA Curriculum v9.

Lesson sequence (40 lessons)

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

1. Exploring Division as Sharing Equal Groups
2. Using Arrays to Show Division Relationships
3. Connecting Multiplication and Division Facts for 2s
4. Connecting Multiplication and Division Facts for 5s
5. Solving Division Problems Using Concrete Materials
6. Writing Division Number Sentences from Real Situations
7. Connecting Multiplication and Division Facts for 10s
8. Exploring Division with Remainders Using Objects
9. Connecting Multiplication and Division Facts for 3s
10. Solving Word Problems Involving Equal Sharing
11. Connecting Multiplication and Division Facts for 4s
12. Identifying Coins and Notes in Australian Currency
13. Counting Collections of Coins to Find Total Values
14. Making Equivalent Amounts Using Different Coin Combinations
15. Calculating Change from Simple Purchases
16. Solving Real-World Money Problems Involving Addition
17. Exploring Tenths as Parts of a Whole Using Visual Models
18. Representing Tenths Using Number Lines and Grids
19. Connecting Fractions and Decimals for Tenths
20. Reading and Writing Decimal Numbers to One Decimal Place
21. Comparing and Ordering Numbers to Four Digits
22. Partitioning Four-Digit Numbers into Place Value Components
23. Recalling Addition and Subtraction Facts to 20 Fluently
24. Creating Additive Patterns from Different Starting Points
25. Describing Rules for Increasing and Decreasing Number Patterns
26. Solving Mixed Multiplication and Division Problems
27. Applying Money Skills to Multi-Step Purchase Problems
28. Demonstrating Understanding Through Number and Algebra Challenges
29. Identifying Angles as Turns Between Two Lines
30. Comparing Angle Sizes in Everyday Objects and Situations
31. Exploring Slides and Flips of Two-Dimensional Shapes
32. Finding Line Symmetry in Transformed Shapes
33. Measuring Perimeter Using Centimetres and Metres
34. Describing Position Changes Through Slides and Flips
35. Describing Everyday Events Using Chance Language
36. Identifying All Possible Outcomes in Simple Chance Experiments
37. Comparing Likelihood of Outcomes in Equally Likely Experiments
38. Conducting Repeated Chance Experiments and Recording Results
39. Reading and Interpreting Data in Dot Plots and Column Graphs
40. Collecting and Organising Data Through Surveys and Observation

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 4

WA terms run roughly 9–11 weeks, and in 2026 Term 4 runs from Monday 12 October to Thursday 17 December — 10 weeks for WA public schools. With 40 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.