Iterative refinement
What Iterative refinement means in Mathematics A-Level, as defined for AQA, Pearson Edexcel, WJEC.
Definitions of Iterative refinement
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Reference: WJEC
Repeating the cycle by refining initial assumptions, introducing additional parameters, and re-evaluating the revised model when discrepancies arise.
Repeating the cycle when interpretation shows the problem is not solved, or revisiting earlier stages with new information or a revised approach.
Repeating the cycle by refining the model, gathering better data or changing the method when results are unsatisfactory.
Topics that use Iterative refinement
- OT2: Mathematical problem solving (AQA A-Level)
- Overarching theme 2: Mathematical problem solving (Pearson Edexcel A-Level)
- Overarching themes - Mathematical problem solving (WJEC A-Level)
Related terms
- Limitations of numerical methods
- contextual interpretation
- error analysis
- Modelling assumptions
- Multi-step reasoning
- numerical methods
- accuracy and rounding
- Adaptive problem solving
Using Iterative refinement in the exam
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