Civics & Citizenship · Year 7 · The Path to Legislation · Term 2

Electoral Systems: Preferential Voting

Students will investigate how preferential voting determines who speaks for the people in the House of Representatives.

• ACARA Content Descriptions
• AC9C7K02

About This Topic

Preferential voting forms the core of Australia's electoral system for the House of Representatives. Voters rank candidates by numbering preferences from 1 onwards. A candidate needs more than 50% of votes to win outright. If not, the candidate with the fewest first preferences is eliminated, and those votes go to the next preference. This process repeats until one candidate achieves a majority. Students explore this through the Australian Curriculum's AC9C7K02, linking it to how elected representatives speak for the people in law-making.

This system shapes election outcomes and party strategies. Minor parties gain relevance through preference flows, often leading to deals between major parties. Students analyze real examples, such as how second preferences decide tight races, and compare it to first-past-the-post systems used elsewhere. This builds critical thinking about fairness, representation, and democracy, preparing students to evaluate government processes.

Active learning suits this topic perfectly. Ballot simulations let students cast and count votes step-by-step, revealing preference dynamics in real time. Group analyses of past elections connect theory to practice, while debates on strategies make abstract concepts personal and memorable, boosting retention and civic engagement.

Key Questions

1. Explain the mechanics of preferential voting in Australian federal elections.
2. Analyze how preferential voting impacts election outcomes and party strategies.
3. Compare preferential voting with other electoral systems, assessing its fairness.

Learning Objectives

• Explain the step-by-step process of preferential voting, including how preferences are distributed.
• Analyze how preferential voting influences the final outcome of an Australian House of Representatives election.
• Compare preferential voting with a first-past-the-post system, evaluating the fairness of each.
• Identify strategies that political parties employ to maximize their vote count under preferential voting.
• Critique the effectiveness of preferential voting in ensuring majority representation.

Before You Start

Structure of Australian Government

Why: Students need a basic understanding of the federal government, including the House of Representatives, to understand the context of elections.

Roles of Elected Representatives

Why: Understanding what elected representatives do provides the purpose for investigating how they are chosen through voting systems.

Key Vocabulary

Preferential Voting	An electoral system where voters number candidates in order of preference. If no candidate wins an absolute majority, the candidate with the fewest votes is eliminated, and their votes are redistributed according to the next preference.
Absolute Majority	More than 50% of the total votes cast. In preferential voting, a candidate must achieve this to be declared elected without further redistribution of votes.
Preference Distribution	The process of reallocating votes from eliminated candidates to the remaining candidates based on the voters' stated preferences.
Informal Vote	A ballot paper that has not been marked according to the rules, for example, by not numbering all preferences or by numbering them incorrectly. These votes are not counted.
Minor Party	A political party that is not one of the two major parties. In preferential voting, minor parties can influence election outcomes through their preferences.

Watch Out for These Misconceptions

Common Misconception

Preferential voting elects the candidate with the most first-preference votes.

What to Teach Instead

The system requires a majority after redistributions, so second or later preferences often decide. Simulations where students tally their own votes clarify this process, as they see eliminations change the leader.

Common Misconception

Preferences only matter if your first choice is eliminated.

What to Teach Instead

Even if the first choice leads initially, trailing candidates can overtake via preferences. Group preference flow activities help students track this visually, correcting the idea that early counts are final.

Common Misconception

You must number every box for a valid vote.

What to Teach Instead

Formal votes need numbers for all candidates in single-member electorates, but informal votes are rare with guidance. Practice ballots in pairs reinforce numbering rules without invalidating votes.

Active Learning Ideas

Whole Class Simulation: Mock Preferential Election

Divide the class into candidate roles with policy platforms. Each student votes by ranking preferences on ballots. Tally first preferences, eliminate lowest, redistribute, and continue until a winner emerges, discussing results.

45 min·Whole Class

Small Groups: Real Election Analysis

Provide results from a recent federal election. Groups map preference flows using flowcharts. They identify key deals and predict alternate outcomes if preferences shifted.

35 min·Small Groups

Pairs: System Comparison Cards

Pairs sort cards comparing preferential voting to first-past-the-post and proportional representation on criteria like fairness and outcomes. They debate and present one strength each.

30 min·Pairs

Individual: Strategy Ballot Design

Students design a ballot for a fictional electorate, then vote and reflect on how party positioning affects preferences.

25 min·Individual

Real-World Connections

• Electoral Commission staff in Canberra meticulously count ballot papers during federal elections, applying the rules of preferential voting to determine the winner for each seat in the House of Representatives.
• Political strategists for parties like the Liberal Party and the Australian Labor Party analyze historical preference data to craft campaign messages and negotiate preference deals with smaller parties, such as the Greens or independents.
• Citizens voting in federal elections at polling places across Australia must number candidates on their ballot paper, directly participating in the preferential voting system to elect their local representative.

Assessment Ideas

Exit Ticket

Provide students with a simplified ballot paper showing 4 candidates and sample first preferences. Ask them to: 1. Identify the candidate with the fewest first preferences. 2. Show how their votes would be redistributed. 3. State who would win if the next candidate then had an absolute majority.

Discussion Prompt

Pose the question: 'Does preferential voting ensure that the elected representative truly reflects the majority will of the voters in their electorate?' Facilitate a class discussion where students use evidence from their learning about preference distribution and absolute majorities to support their arguments.

Quick Check

Present students with a scenario: 'Candidate A received 40% of first preferences, Candidate B received 35%, and Candidate C received 25%. Candidate C is eliminated. Show how Candidate C's votes are distributed and determine if either A or B now has an absolute majority.'

Frequently Asked Questions

How does preferential voting work in Australian House of Representatives elections?

Voters rank candidates by preference. Count first preferences; if no majority, eliminate the lowest and redistribute to next preferences. Repeat until one reaches over 50%. This ensures broad support. Students grasp it best through hands-on tallies, linking to AC9C7K02 on government processes.

What impact does preferential voting have on party strategies?

Parties court preferences from minors via deals, affecting campaigns. Winners often rely on second preferences, encouraging coalition-building. Analyzing charts in groups shows how this promotes diverse representation while maintaining stable government.

How does preferential voting compare to first-past-the-post?

First-past-the-post awards seats to the most votes, even without majority, risking unrepresentative winners. Preferential ensures majority support via redistributions. Comparison activities with mock ballots highlight fairness advantages in Australia's context.

How can active learning help teach preferential voting?

Simulations engage students as voters and counters, making redistribution tangible. Group analyses of elections reveal strategy impacts, while pair debates build evaluation skills. These methods, aligned to curriculum inquiry, turn passive knowledge into active civic understanding, with 80% retention gains from hands-on practice.