IB-style question — evaluating a model
“Evaluate the use of a named model (e.g. a systems diagram, a pyramid of productivity, or the ecological footprint).” [4]
How to answer it, step by step
- Strengths
• simplifies a complex system; easy to visualise and compare
• allows predictions - Weaknesses + Judgement
• loses detail; relies on estimates and assumptions
• Judgement: 'useful for X but limited for Y' — always needed for 'evaluate'
Final answer
Every model answer is the same shape: simple/visual/predictive vs simplified/assumption-based — plus a conclusion.
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