Practice Paper – Set 2
A Level Further Mathematics B (MEI)
Y420/01 Core Pure
MARK SCHEME
Duration: 2 hour 40 minutes
MAXIMUM MARK 144
This document consists of 20 pages
,Y420/01 Mark Scheme September 2018
Text Instructions
1. Annotations and abbreviations
Annotation in scoris Meaning
and
BOD Benefit of doubt
FT Follow through
ISW Ignore subsequent working
M0, M1 Method mark awarded 0, 1
A0, A1 Accuracy mark awarded 0, 1
B0, B1 Independent mark awarded 0, 1
SC Special case
^ Omission sign
MR Misread
Highlighting
Other abbreviations Meaning
in mark scheme
E1 Mark for explaining a result or establishing a given result
dep* Mark dependent on a previous mark, indicated by *
cao Correct answer only
oe Or equivalent
rot Rounded or truncated
soi Seen or implied
www Without wrong working
AG Answer given
awrt Anything which rounds to
BC By Calculator
DR This indicates that the instruction In this question you must show detailed reasoning appears in the question.
2
, Y420/01 Mark Scheme September 2018
2. Subject-specific Marking Instructions for A Level Further Mathematics B (MEI)
a Annotations should be used whenever appropriate during your marking. The A, M and B annotations must be used on your standardisation scripts for
responses that are not awarded either 0 or full marks. It is vital that you annotate standardisation scripts fully to show how the marks have been awarded.
For subsequent marking you must make it clear how you have arrived at the mark you have awarded.
b An element of professional judgement is required in the marking of any written paper. Remember that the mark scheme is designed to assist in marking
incorrect solutions. Correct solutions leading to correct answers are awarded full marks but work must not be judged on the answer alone, and answers
that are given in the question, especially, must be validly obtained; key steps in the working must always be looked at and anything unfamiliar must be
investigated thoroughly. Correct but unfamiliar or unexpected methods are often signalled by a correct result following an apparently incorrect method.
Such work must be carefully assessed. When a candidate adopts a method which does not correspond to the mark scheme, escalate the question to your
Team Leader who will decide on a course of action with the Principal Examiner.
If you are in any doubt whatsoever you should contact your Team Leader.
c The following types of marks are available.
M
A suitable method has been selected and applied in a manner which shows that the method is essentially understood. Method marks are not usually lost
for numerical errors, algebraic slips or errors in units. However, it is not usually sufficient for a candidate just to indicate an intention of using some method
or just to quote a formula; the formula or idea must be applied to the specific problem in hand, e.g. by substituting the relevant quantities into the formula.
In some cases the nature of the errors allowed for the award of an M mark may be specified.
A
Accuracy mark, awarded for a correct answer or intermediate step correctly obtained. Accuracy marks cannot be given unless the associated Method mark
is earned (or implied). Therefore M0 A1 cannot ever be awarded.
B
Mark for a correct result or statement independent of Method marks.
E
A given result is to be established or a result has to be explained. This usually requires more working or explanation than the establishment of an unknown
result.
Unless otherwise indicated, marks once gained cannot subsequently be lost, e.g. wrong working following a correct form of answer is ignored. Sometimes
this is reinforced in the mark scheme by the abbreviation isw. However, this would not apply to a case where a candidate passes through the correct
answer as part of a wrong argument.
3
A Level Further Mathematics B (MEI)
Y420/01 Core Pure
MARK SCHEME
Duration: 2 hour 40 minutes
MAXIMUM MARK 144
This document consists of 20 pages
,Y420/01 Mark Scheme September 2018
Text Instructions
1. Annotations and abbreviations
Annotation in scoris Meaning
and
BOD Benefit of doubt
FT Follow through
ISW Ignore subsequent working
M0, M1 Method mark awarded 0, 1
A0, A1 Accuracy mark awarded 0, 1
B0, B1 Independent mark awarded 0, 1
SC Special case
^ Omission sign
MR Misread
Highlighting
Other abbreviations Meaning
in mark scheme
E1 Mark for explaining a result or establishing a given result
dep* Mark dependent on a previous mark, indicated by *
cao Correct answer only
oe Or equivalent
rot Rounded or truncated
soi Seen or implied
www Without wrong working
AG Answer given
awrt Anything which rounds to
BC By Calculator
DR This indicates that the instruction In this question you must show detailed reasoning appears in the question.
2
, Y420/01 Mark Scheme September 2018
2. Subject-specific Marking Instructions for A Level Further Mathematics B (MEI)
a Annotations should be used whenever appropriate during your marking. The A, M and B annotations must be used on your standardisation scripts for
responses that are not awarded either 0 or full marks. It is vital that you annotate standardisation scripts fully to show how the marks have been awarded.
For subsequent marking you must make it clear how you have arrived at the mark you have awarded.
b An element of professional judgement is required in the marking of any written paper. Remember that the mark scheme is designed to assist in marking
incorrect solutions. Correct solutions leading to correct answers are awarded full marks but work must not be judged on the answer alone, and answers
that are given in the question, especially, must be validly obtained; key steps in the working must always be looked at and anything unfamiliar must be
investigated thoroughly. Correct but unfamiliar or unexpected methods are often signalled by a correct result following an apparently incorrect method.
Such work must be carefully assessed. When a candidate adopts a method which does not correspond to the mark scheme, escalate the question to your
Team Leader who will decide on a course of action with the Principal Examiner.
If you are in any doubt whatsoever you should contact your Team Leader.
c The following types of marks are available.
M
A suitable method has been selected and applied in a manner which shows that the method is essentially understood. Method marks are not usually lost
for numerical errors, algebraic slips or errors in units. However, it is not usually sufficient for a candidate just to indicate an intention of using some method
or just to quote a formula; the formula or idea must be applied to the specific problem in hand, e.g. by substituting the relevant quantities into the formula.
In some cases the nature of the errors allowed for the award of an M mark may be specified.
A
Accuracy mark, awarded for a correct answer or intermediate step correctly obtained. Accuracy marks cannot be given unless the associated Method mark
is earned (or implied). Therefore M0 A1 cannot ever be awarded.
B
Mark for a correct result or statement independent of Method marks.
E
A given result is to be established or a result has to be explained. This usually requires more working or explanation than the establishment of an unknown
result.
Unless otherwise indicated, marks once gained cannot subsequently be lost, e.g. wrong working following a correct form of answer is ignored. Sometimes
this is reinforced in the mark scheme by the abbreviation isw. However, this would not apply to a case where a candidate passes through the correct
answer as part of a wrong argument.
3
