English Language Arts · Grade 9

Active learning ideas

Logical Fallacies and Bias

Active learning works because logical fallacies and bias are easier to spot when students are engaged in real-time argument construction and evaluation. When students apply these concepts in structured debates or peer reviews, they see immediate consequences of weak reasoning rather than just hearing abstract definitions.

• Ontario Curriculum Expectations
• CCSS.ELA-LITERACY.RI.9-10.8

• 25–40 min
• Pairs → Whole Class
• 3 activities

Activity 01

• Formal Debate
• 40 min · Pairs

Formal Debate: The Argument Build-Off

In pairs, students are given a claim. They must 'build' their argument using physical blocks or cards labeled 'Claim,' 'Evidence,' 'Warrant,' and 'Counterargument.' They then present their 'structure' to another pair.

How do logical fallacies like circular reasoning weaken the validity of a public speech?

Facilitation Tip

During the Structured Debate, assign specific roles like 'Counterargument Captain' to ensure every student contributes to the pro-con analysis.

What to look for

Provide students with short excerpts from news articles or social media posts. Ask them to identify one logical fallacy or instance of bias present and briefly explain why it weakens the argument. Collect and review for understanding.

• Analyze
• Evaluate
• Create
• Self-Management
• Decision-Making

Activity 02

• Peer Teaching
• 30 min · Pairs

Peer Teaching: Counterargument Coaches

Students swap thesis statements. The partner's job is to come up with the strongest possible counterargument. The original writer then must draft a 'rebuttal' that addresses that specific point.

What role does confirmation bias play in the selection of evidence within an editorial?

Facilitation Tip

For Peer Teaching: Counterargument Coaches, provide a rubric with clear criteria for evaluating counterarguments so feedback is consistent and actionable.

What to look for

Pose the question: 'How can understanding logical fallacies and bias help you make better decisions as a consumer or a citizen?' Facilitate a class discussion, encouraging students to share specific examples from their own experiences or observations.

• Understand
• Apply
• Analyze
• Create
• Self-Management
• Relationship Skills

Activity 03

• Inquiry Circle
• 25 min · Small Groups

Inquiry Circle: Thesis Surgery

The teacher provides several 'weak' thesis statements. Groups work together to 'perform surgery' on them, making them more specific, debatable, and sophisticated.

How can readers distinguish between a well supported argument and manipulative propaganda?

Facilitation Tip

In the Thesis Surgery activity, circulate with a checklist of fallacies and bias types to guide students toward common pitfalls.

What to look for

Students bring in an example of media (e.g., an online article, a print ad). In pairs, they present their media example and explain one way it might contain a fallacy or bias. Their partner listens and asks one clarifying question about the reasoning or evidence presented.

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

A few notes on teaching this unit

Teachers should model the process of dissecting arguments aloud, thinking through each step of identifying claims, evidence, and counterarguments. Avoid overwhelming students with too many fallacies at once; focus on 3-4 common ones first. Research shows students benefit most when they see these concepts applied in real-world contexts, so use current media examples to make the lessons relevant.

Students should demonstrate the ability to identify logical fallacies and bias in real arguments, explain their impact, and revise their own writing to strengthen it. Successful learning also includes confidently presenting counterarguments and refining claims based on feedback.

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Watch Out for These Misconceptions

• During Counterargument Coaches, students might think a counterargument makes their own argument look weak.

  Remind students that during this activity, they will practice responding to counterarguments with stronger evidence or refined reasoning, which actually strengthens their original claim.

• During Structured Debate: The Argument Build-Off, students may treat their thesis like a fact or topic rather than a debatable claim.

  Encourage students to use the debate’s 'pro-con' brainstorming sheet to test their thesis by asking, 'Can someone reasonably disagree with this?' and revising accordingly.

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Methods used in this brief

• Formal Debate
• Peer Teaching
• Inquiry Circle