Advice on exam technique based on experience and examiners reports.
How exam papers are marked ===>>
Source LINK1) A Level Math ....
a) Marks are awarded in the first place for knowing a correct method of solution and attempting to apply it (M marks).b) In general no accuracy marks (A marks) can be obtained until a valid method has been established. Accuracy marks may be given for the correct answer only (c.a.o.) or for answers correctly followed through from an incorrect previous answer.
c) Method marks cannot be lost for arithmetic errors. Sometimes, e.g. in curve sketching, marks are awarded independently of method marks; these are called B marks.
d) Care is taken in marking schemes to see that a slip does not attract an excessive penalty. Nevertheless, high grades cannot be achieved on method marks alone and accuracy is essential for the award of higher grades.
e) Orderly and logical presentation is of considerable advantage to candidates in making the best use of their time. However, long methods are not directly penalised as candidates using methods have already penalised themselves by using up the time that could have been more profitably spent on other questions.
f) You'll need to get at least 30 marks roughly on any paper to pass it
g) a sketch does not require plotting, but key aspects should be shown carefully
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