MEI DIFFERENTIAL EQUATIONS COURSEWORK MARK SCHEME

If this is not the case please consult your Team Leader. Annotations and abbreviations Annotation in scoris Meaning Blank Page — this annotation must be used on all blank pages within an answer booklet structured or unstructured and on each page of an additional object where there is no candidate response. 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, eg by substituting the relevant quantities into the formula. Many of those who did earn the first mark often made errors in manipulating the equation, and scored no further marks. A number of candidates obtained negative answers for both a and r, but never suspected anything was amiss. Question 13 Part i Wrong working often spoiled a correct final answer in this question.

The total number of marks for the paper is Write down two equations in a and r, where a is the first term and r is the common ratio. A tiny minority gave all values to a different degree of accuracy to the one requested, thus losing two easy marks — although credit was still available for the plots and the line. Some candidates applied the scale factor to both values. The total time allowed is 1 hour 30 minutes. They should ensure that the material they have is that published for this specification and not that for an earlier specification.

Give your answer correct to 3 decimal places. If OCR has unwittingly failed to correctly acknowledge or clear any third-party content in this assessment material, OCR corsework be happy to correct its mistake at the earliest possible opportunity. Therefore M0 A1 cannot ever be awarded.

mei differential equations coursework mark scheme

Description There are two aspects to the work. Unfortunately, many of them failed to score, in spite of their likely truth, as they were vague or missed the point.

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mei differential equations coursework mark scheme

On the other hand, when two or more steps are successfully run together by the candidate, the earlier marks are implied and full credit must be given. Candidates are expected to give numerical answers to an appropriate degree of accuracy, with 3 significant figures often being the norm.

Tasks which allow mmark superficial or trivial treatment should be avoided.

mei differential equations coursework mark scheme

Remember me on this computer. Log In Sign Up. Half marks may be awarded, but the overall total must be rounded up or down to an integer. Question 4 Both parts were generally very well done, with many candidates scoring full marks.

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OCR has attempted to identify and contact all copyright holders whose work is used in this paper. In other languages Differwntial links. Relevant knowledge of complex numbers will also be required. A common error was arctan 1. A significant minority of candidates demonstrated a fair degree of understanding of Core 2 syllabus material, but failed to schemee themselves justice in the examination because of poor GCSE level algebra and careless arithmetical slips.

Some candidates rounded off their calculator value, and then over-specified their final values Please can anyone help, Integration, c3 mei, ocr maths!?!? Similarly, a small number of candidates simply added the first and the last terms. Calculate the length of AC.

However, Centres which are new to the scheme are strongly recommended to use the tasks published by MEI while they are familiarising themselves with the fquations of coursework. M A suitable method has been selected and applied in a manner which shows that the method is essentially understood.

The table eequations the reduction in thickness from its measurement in Equatiojs modelling assignment involving the use of differential equations at an appropriate level of sophistication. Some candidates worked in degrees and then worked with rounded numbers, often following on to over specify their answer and lose the final mark.

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When a candidate adopts a method which does not correspond matk the mark scheme, award marks according to the spirit of the basic scheme; if you are in any doubt whatsoever especially if several marks or candidates are involved you should contact your Team Leader. Premature approximation followed by over-specification of final answers also cost some candidates easy marks. Many started again to find the sum of the first ten terms, and did so successfully.

Write down two equations in a and r, where a is the first term and r is the common ratio. Skip to main content.

mei ocr maths coursework

Make sure you know what you have to do before starting your answer. They should ensure that the material they have is that published for this specification and not that for an earlier specification. Candidates were expected to comment on the model continuing to predict an ever increasing rate of reduction in the thickness of the ice, in spite of the fact that at some point all the ice will have melted. In both cases ewuations easy mark was lost.

Annotations and abbreviations Annotation in scoris Meaning Blank Page coursewoek this annotation must be used on all blank pages within an answer booklet structured or unstructured and on each page of an additional object where there is no candidate response.

This is the completed version and I scored.