Year 4 Mathematics – Term 1 (WA Curriculum): Place Value and More

What this unit covers

In Term 1, Year 4 Mathematics in the WA Curriculum centres on the unit “Place Value and More”.

Term 1 Mathematics for Year 4. Focus areas: place value, counting. 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. Reading and Writing Numbers to 1000 Using Digits and Words
2. Identifying Place Value in Three-Digit Numbers Using Base-Ten Materials
3. Partitioning Three-Digit Numbers into Hundreds, Tens and Ones
4. Ordering Three-Digit Numbers from Smallest to Largest
5. Determining Odd and Even Numbers by Examining the Final Digit
6. Reading and Writing Numbers to 10,000 Using Expanded Form
7. Exploring Place Value Patterns in Four-Digit Numbers
8. Counting Forward and Backward by Tens from Any Starting Point
9. Counting Forward and Backward by Hundreds from Any Starting Point
10. Reading and Writing Five-Digit Numbers Using Place Value Charts
11. Understanding Ten Times Larger Relationships in Place Value
12. Creating Non-Standard Partitions of Four-Digit Numbers
13. Introducing Decimal Numbers as Parts of One Whole
14. Reading and Writing Decimal Numbers to One Decimal Place
15. Exploring Tenths Using Visual Models and Fraction Notation
16. Reading and Writing Decimal Numbers to Two Decimal Places
17. Understanding Hundredths Using Grid Models and Decimal Notation
18. Adding Two-Digit Numbers Using Mental Strategies
19. Adding Three-Digit Numbers Using Place Value Strategies
20. Solving Addition Problems with Multiple Addends
21. Creating Increasing Patterns by Adding the Same Amount
22. Creating Increasing Patterns by Multiplying by the Same Factor
23. Describing Rules for Number Patterns Using Mathematical Language
24. Representing Number Patterns Using Concrete Materials and Diagrams
25. Solving Real-World Addition Problems Using Diagrams and Equations
26. Identifying Addition Situations in Everyday Contexts
27. Creating and Solving Addition Word Problems
28. Reviewing Place Value and Addition Strategies Through Games
29. Estimating and Measuring Length Using Centimetres and Metres
30. Comparing and Ordering Objects by Length Using Scaled Instruments
31. Estimating and Measuring Perimeter of Two-Dimensional Shapes
32. Comparing Perimeters of Different Shapes Using Scaled Instruments
33. Measuring Area Using Uniform Square Units in Arrays
34. Comparing Areas of Rectangles Using Square Unit Arrays
35. Identifying and Describing Everyday Chance Events
36. Ordering Events from Impossible to Certain
37. Posing Questions to Collect Categorical Data
38. Recording Data Using Tally Marks and Frequency Tables
39. Creating Many-to-One Picture Graphs
40. Interpreting Data Stories from Picture Graphs

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 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.