MEI DIFFERENTIAL EQUATIONS COURSEWORK MARK SCHEME

This page was last edited on 24 September , at The total time allowed is 1 hour 30 minutes. I’ve just started my maths coursework and I was wondering if I need to show the failure of the interval bisection method graphically or just using a spread. 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. There are no restrictions on the context chosen.

Those who adopted other methods such as simultaneous equations often went astray, and obtaining a positive value for the Y- intercept or a large value for the gradient evidently did not cause concern. A In this case the modelling cycle is investigated in some depth, whilst the check against reality may use the data from published sources, from experiments which the candidate has not actually performed or from experience; there must however be a quantitative element in such data. Verify that the stationary point is a maximum. Sometimes the answer to one part of a question is used in a later part of the same question. Make sure you know what you have to do before starting your answer.

Additional paper may be used if necessary but you must clearly show your candidate number, centre number and question number s. Question 7 Most candidates wrote down the required equations, and most went on to eliminate one of the variables correctly.

Some candidates worked in degrees and then worked with rounded numbers, often following on to xoursework specify their answer and lose the final mark. A Accuracy mark, awarded for a diffrrential answer or intermediate step correctly obtained. Part iii Those candidates who used their graph to find the gradient and the intercept often went on to score full marks in this part.

RASTA SURAKSHA ESSAY

Question 9 Most candidates started correctly, a few doubled A number of candidates wasted time by trying to find the numerical value of a. In such cases, exactly what is acceptable will be detailed in the mark scheme rationale. Of course, in practice it may happen that when a candidate has once gone wrong in a coursfwork of a question, the work from there on is worthless so that no more marks can sensibly be given.

Unfortunately a few candidates stopped at dquations 60 and lost both marks.

A-level Mathematics/MEI/DE

Rationale The aims of the coursework are that students should learn how differential equations are used to solve real-world problems and that they should appreciate ,ark the theory they have learnt for the examination helps them to do this. No other mark sheet may be used, nor may these be amended in any way.

A small number left the calculator in radian mode and couraework the final mark; a very small number tried to use Pythagoras or lost their way after earning the first method mark. Enter the email address you signed up with and we’ll email you a reset link.

A-level Mathematics/MEI/DE – Wikibooks, open books for an open world

It is vital that you annotate standardisation scripts fully to show how the marks have been awarded. One modelling assignment involving the use of differential equations at an appropriate diffeeential of sophistication. This comprises of 3 modules: Help on c3 maths coursework for mei? For subsequent marking you must make it clear how you have arrived at the mark you have awarded.

Question 3 Many marl scored full marks here. A common error was arctan 1. Please contact OCR Copyright should you wish to re-use this document.

GINA RAIMONDO ESSAY CONTEST

Part ii This was very well done. Mathematics in Education mmei Industry MEI MEI is committed to improving mathematics education and promotes teaching and learning through different strands of activity. It would seem that a significant minority did not connect this part with earlier parts of the question.

Mei ocr maths coursework

It is disappointing to see some candidates misquoting formulae that are given to them in the booklet. This page was last edited on 24 Septemberat Relevant knowledge of complex numbers will also be required.

In other languages Add links. Correct but unfamiliar or unexpected methods are often signalled by a correct result following an apparently incorrect method.

Remember me on this computer. Most plotted the points adequately and drew a single ruled line of best fit across the whole range of x-values to earn two marks.

mei ocr maths coursework

It allows some areas of mathematics to be assessed that written examinations. In some cases the nature of the errors allowed for the award of an M mark may be specified. In such cases you must ensure that you refer back to the answer of the previous part question even if this is not shown within the image zone. Candidates are expected to know the content of C1, C2, C3 and C4.