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This lesson explains how to present your mathematical solutions in a way that maximises marks. In Edexcel A-Level Mathematics, the method marks are often worth more than the final answer. Clear communication of your mathematical reasoning is not optional — it is a core skill that the mark scheme explicitly rewards.
Consider a 6-mark question. The mark scheme might be: M1 A1 M1 A1 M1 A1. If you write only the final answer:
Now consider the same question where you show all your working but make an arithmetic error in the last step:
Key Point: Showing working turns a potential 0 into a potential 5. It is the single most important exam technique in mathematics.
Good mathematical working has these characteristics:
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