Simplifying assumptions
What Simplifying assumptions means in Mathematics A-Level, as defined for AQA, Pearson Edexcel, WJEC.
Definitions of Simplifying assumptions
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Reference: WJEC
Introduced to reduce algebraic complexity, each must be stated explicitly, acknowledging that it defines the operational boundaries and potential error margins of the resulting model.
Assumptions that render intractable real-world dynamics mathematically accessible, such as treating curved boundaries as circular arcs or approximating small angles with polynomials.
Assumptions in a model that simplify it, which can be identified and explained in terms of how they might affect the model's outputs.
Statements of which features are ignored or simplified so that the problem becomes tractable, justified in context.
Statements that make the problem tractable, which must be explicit and justified in context.
Topics that use Simplifying assumptions
- OT3: Mathematical modelling (AQA A-Level)
- Overarching theme 3: Mathematical modelling (Pearson Edexcel A-Level)
- Overarching themes - Mathematical modelling (WJEC A-Level)
- Overarching themes - Mathematical problem solving (WJEC A-Level)
Related terms
- contextual interpretation
- model refinement
- Modelling assumptions
- Mathematical model
- units and meaning
- accuracy and rounding
- Accurate recording
- algebraic modelling
Using Simplifying assumptions in the exam
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