Phineas Gage Inquiry

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Curriculum Context

Subject: Science
Year Level: Year 11
Curriculum Reference: Australian Curriculum - Senior Secondary - Science – Psychology – Unit 1: Biological bases of behaviour

Relevant Standard:

• Understand how biological factors affect behaviour (ACSPH019)
• Examine case studies to investigate the relationship between brain structures and function (ACSPH022)

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Lesson Overview

In this 45-minute session, students will engage in a case study and media analysis of Phineas Gage to explore the relationship between brain structure and behaviour. Students will apply biological and psychological concepts to evaluate how brain injury can affect personality and cognitive function.

The session is designed for 3 students, enabling a highly interactive, discussion-based learning environment.

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WALT (We Are Learning To)

• Understand how brain injury can affect personality and behaviour.
• Analyse historical and media portrayals of Phineas Gage with a critical lens.
• Make connections between brain regions and associated functions.

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Success Criteria

Students will be able to:

• Accurately summarise the life and injury of Phineas Gage.
• Explain the link between the frontal lobe and behavioural functions.
• Critically evaluate different interpretations of Phineas Gage’s story.
• Collaboratively discuss and present findings with peers.

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Materials Needed

• Printed copies of a summarised Phineas Gage case study
• Access to short excerpts from a documentary or dramatisation (with prior download for offline use)
• Graphic organiser template: Cause, Effect, Brain Areas Involved
• Sticky notes and whiteboard
• Marking rubrics for informal oral presentation

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Lesson Structure

1. Hook (5 minutes)

Ask:
"Imagine you are the same person today as you were yesterday—except one event changed everything about how you behave. How would people around you know you had changed?"

Students write quick responses on sticky notes. Share verbally to foster curiosity.

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2. Mini Lecture: Phineas Gage Story (10 minutes)

Teacher-led brief retelling:

• Nature of accident (tamping iron through the skull)
• Immediate and long-term effects observed
• Early medical responses
• Legacy in neuroscience

Present a printed infographic summarising Gage's accident and MRI reconstructions based on historical records.

Facilitation Tip: Use storytelling techniques with visual gestures to make it vivid and personal.

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3. Media Analysis Activity (15 minutes)

Students watch a 4-minute excerpt from a downloaded documentary showing a dramatisation of Gage’s accident and its aftermath.

Guided Analysis

Provide students with prompts while watching:

• What personality traits changed?
• How do different sources portray him?
• What scientific conclusions are drawn?

After viewing:

• Students complete the Graphic Organiser:
  • Cause: (Accident)
  • Effect: (Behavioural and cognitive changes)
  • Brain area involved: (Frontal lobe)

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4. Small Group Discussion (10 minutes)

In pairs (one student groups with teacher for assistance if needed):

• Discuss misconceptions about Gage based on popular media versus scientific consensus.
• Critical question:
  • "Did injury alone change Gage, or could social factors after his accident also contribute to his behavioural changes?"

Groups prepare a short oral Snapshot Presentation (2 minutes each)

• Key point: One thing media often dramatises or misses about Gage.

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5. Reflection and Wrap-Up (5 minutes)

Teacher-led reflection:

• Question: "How has Phineas Gage helped our understanding of neuroscience today?"
• Summarise key takeaways on the whiteboard.

Students self-assess:

• Thumbs up: I fully understand how brain injury affects behaviour.
• Sideways thumb: I have some questions.
• Thumbs down: I am confused and need help.

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Differentiation Strategies

• High Support Learners:

  • Provide a ‘fill-in-the-blank’ version of the Graphic Organiser.
  • Allow oral rather than written answers.
  • Pair with a peer mentor or teacher during discussion.

• Extension for Advanced Learners:

  • Research and present a modern-day equivalent case (e.g., studies of athletes with traumatic brain injuries).
  • Debate: "Should media be held accountable for scientific inaccuracies in historical documentaries?"

• EAL (English as an Additional Language):

  • Visual glossary of key terms: frontal lobe, cognition, behaviour, personality.
  • Simplified handouts with icons for each key point.

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Assessment Opportunities

• Informal observation during paired discussions
• Graphic Organiser completion
• Snapshot Presentation (assessed with a simple rubric for clarity, correctness, collaboration)

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Teacher Reflection (Post-Lesson)

After the lesson, the teacher will reflect on:

• Were students engaged with the case study?
• Did all students participate actively?
• How deeply did students think about the relationship between biology and behaviour?
• Do students now show more critical thinking about media source credibility?

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Extension Ideas (Beyond This Lesson)

• Compare Phineas Gage’s case with other famous neurological patients like H.M. (Henry Molaison).
• Create a mock news report as if Gage’s accident happened today.
• Conduct a mini research task on neuroplasticity and recovery post-brain injury.

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Notes

This highly tactile and interactive approach leverages classic case study methods and media critique to scaffold critical thinking, scientific understanding, and real-world application, fully aligned with the Senior Secondary Australian Curriculum – Psychology section.

With vivid storytelling, engaging visuals, and robust discussion, this memorable lesson introduces critical themes in a way that is accessible yet challenging for Year 11 learners.