Year 7 Mathematics – Term 3 (WA Curriculum): Probability and Statistics - Data Collection, Analysis and Chance

What this unit covers

In Term 3, Year 7 Mathematics in the WA Curriculum centres on the unit “Probability and Statistics - Data Collection, Analysis and Chance”.

Students explore probability terminology and calculations, conduct experiments to compare theoretical and experimental probabilities, analyze datasets using various statistical measures and representations, and investigate chance variation in real-world contexts.

Lesson sequence (30 lessons)

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

1. Introduction to Probability Terminology and Basic Concepts
2. Understanding Sample Spaces and Outcomes
3. Creating Sample Spaces for Dice and Coins
4. Calculating Theoretical Probability with Simple Events
5. Identifying Favorable Outcomes in Different Scenarios
6. Conducting Probability Experiments with Drawing Pins
7. Recording and Organizing Experimental Data from Trials
8. Calculating Relative Frequencies from Experimental Results
9. Comparing Experimental Results Between Different Groups
10. Analyzing Variation in Experimental Probability Results
11. Comparing Theoretical and Experimental Probabilities
12. Understanding Why Experimental Results Vary from Theory
13. Introduction to Statistical Measures - Mean, Mode, and Median
14. Calculating Mean, Mode, and Median with Physical Materials
15. Using Money Distribution Activities to Explore Averages
16. Determining Which Average Best Represents a Dataset
17. Collecting Categorical Data for Venn Diagram Analysis
18. Creating Venn Diagrams from Survey Data
19. Calculating Relative Frequencies from Venn Diagram Data
20. Using Venn Diagrams to Make Probability Predictions
21. Collecting Numerical Data for Statistical Displays
22. Creating Stem-and-Leaf Plots from Collected Data
23. Creating Dot Plots and Column Graphs from Data
24. Comparing Different Types of Data Displays
25. Using Statistical Displays to Estimate Probabilities
26. Investigating Chance Variation in Media Statistics
27. Analyzing Real-World Statistical Claims Critically
28. Exploring Probability in Digital Music and Technology
29. Investigating Chance Variation in Everyday Situations
30. Consolidating Probability and Statistics Concepts

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 3

WA terms run roughly 9–11 weeks, and in 2026 Term 3 runs from Monday 20 July to Friday 25 September — 10 weeks for WA public schools. With 30 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.