Year 8 Critical Thinking Unit | 45 minutes
Socratic questioning & evidence-based problem-solving
Key Vocabulary:
Display these questions about climate change:
Student Task: Pairs identify the difference, create one more example of each type
The Scenario:
Moa were massive flightless birds that lived in New Zealand for millions of years. Archaeological evidence shows they disappeared around 600-700 years ago, shortly after Polynesian settlement. But what exactly happened? Your job is to solve this mystery using evidence and expert questioning.
Clue 1: Moa bones found in middens (ancient rubbish dumps) alongside tools and oven stones
Clue 2: Māori oral traditions mention hunting large birds, but few specific moa stories survive
Clue 3: Pollen records show forest clearance began soon after human arrival
Clue 4: Moa egg fragments found in archaeological sites throughout NZ
Clue 5: No evidence of moa bones in sites dated after 1400 CE
Clue 6: Climate records show no major environmental changes during extinction period
Student Investigation Process (Groups of 4):
Archaeologist: "What dating methods did you use? How certain are these dates?"
Māori Elder: "What do oral traditions say about relationships with large birds?"
Paleontologist: "How quickly can large bird populations decline? What are the warning signs?"
Ecologist: "What role did moa play in forest ecosystems? What changed when they disappeared?"
Discussion Questions:
Key Point: Oral histories and scientific evidence can complement each other when used respectfully and carefully.
Task: Each group posts their best "expert questions" on class Padlet
Categories:
Peer Review: Students vote on most insightful questions
Names: _________________________________ Date: ___________
1. What do you think happened to the moa? (Before examining evidence)
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2. Which piece of evidence is strongest? Why?
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3. Which evidence is weakest or most questionable? Why?
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4. What patterns do you see across multiple pieces of evidence?
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5. Write your three best questions for each expert type:
Archaeologist:
a) _____________________________________________________________________
b) _____________________________________________________________________
c) _____________________________________________________________________
Māori Elder/Cultural Expert:
a) _____________________________________________________________________
b) _____________________________________________________________________
c) _____________________________________________________________________
Ecologist/Environmental Scientist:
a) _____________________________________________________________________
b) _____________________________________________________________________
c) _____________________________________________________________________
6. After analyzing evidence and generating questions, what's your best explanation for moa extinction?
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7. What additional evidence would you need to be more certain?
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8. What makes a question "good" for investigation?
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9. How did generating questions change your understanding of the mystery?
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10. Give an example of when you could use this questioning approach in your own life:
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Question Formulation (4 points):
Evidence Analysis (4 points):