# november 2010 mark scheme

mark scheme unit 3 november 2010 paper 14

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Mark Scheme (Results)
November 2010

GCSE

GCSE Mathematics (5384H)
Paper 14H

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Edexcel is one of the leading examining and awarding bodies in the UK and throughout the world. We provide a wide range of qualifications
including academic, vocational, occupational and specific programmes for employers.
Through a network of UK and overseas offices, Edexcel's centres receive the support they need to help…

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GCSE MATHEMATICS 2381 (MODULAR)

NOTES ON MARKING PRINCIPLES

1 Types of mark
M marks: method marks A marks: accuracy marks
B marks: unconditional accuracy marks (independent of M marks)

2 Abbreviations
cao ­ correct answer only ft ­ follow through isw ­ ignore subsequent working
SC: special case dep ­…

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GCSE MATHEMATICS 2381 (MODULAR)

Follow through marks which involve a single stage calculation can be awarded without working since you can check the
answer yourself, but if ambiguous do not award.
Follow through marks which involve more than one stage of calculation can only be awarded…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/14H
1 (a) 3 × 100 300 2 M1 for 3 × 100 or 100 ÷ 6 × 18 oe
A1 cao

(b) 2÷½×6 24 2 M1 for 2 ÷ ½ × 6 oe
A1 cao
y
2 (a) y=x
2…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/14H
5 2.42927(0474) 2 B2 for 2.42927 ...
(B1 for 19.56 or 8.0518
or 2.43 or 2.429 or 2.4292 or 2.4293
97800
or digits 242927 or seen)
40259

6 -2, -1, 0, 1, 2 2 B2 for -2, -1, 0, 1,…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/14H
9 (a) k ­ 5 = 24 ÷ 3 13 2 M1 for k ­ 5 = 24 ÷ 3 or 3 × k ­ 3 × 5 oe
k = 8+5 A1 cao

(b) x2 = 162 ÷ 2…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/14H
14 Angle ADC = 180 - 128 = 52° 104 2 M1 for valid method to get angle ADC or 128 × 2
x = 2 × 52° or 256° seen (can be on the diagram)
or reflex angle AOC…

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GCSE MATHEMATICS 2381 (MODULAR)

5384H/14H
18 a × (3 + n) = 6a - n 3a 4 M1 for multiplying both sides by 3+n
3a + an = 6a - n n= M1 for correctly isolating `terms in n' from
a +1
an + n…

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GCSE MATHEMATICS 2381 (MODULAR)

Further copies of this publication are available from
Edexcel Publications, Adamsway, Mansfield, Notts, NG18 4FN

Telephone 01623 467467
Fax 01623 450481

Email [email protected]

Order Code UG025847 November 2010