MEI DIFFERENTIAL EQUATIONS COURSEWORK MARK SCHEME

Of course, in practice it may happen that when a candidate has once gone wrong in a part of a question, the work from there on is worthless so that no more marks can sensibly be given. Relevant knowledge of complex numbers will also be required. Contents Introduction and but you can also refer to the MEI coursework booklet and any other material e. One modelling assignment involving the use of differential equations at an appropriate level of sophistication. Description There are two aspects to the work.

Strangely many candidates stopped there, or subtracted Mathematics in Education and Industry MEI MEI is committed to improving mathematics education and promotes teaching and learning through different strands of activity. Your email address will not be published. Some candidates worked in degrees and then worked with rounded numbers, often following on to over specify their answer and lose the final mark. This is the completed version and I scored. Many started again to find the sum of the first ten terms, and did so successfully.

mei differential equations coursework mark scheme

Part ii This was very well done. Additional paper may be used if necessary but you must clearly show your candidate number, centre number and question number s. Correct but unfamiliar or unexpected methods are often signalled by a correct result following an apparently incorrect method. Task Selection Centres are encouraged to develop their own coursework tasks.

mei differential equations coursework mark scheme

Centres are advised that using a graphical calculator to evaluate difcerential definite integral or to solve an equation eg question 10 will earn no credit unless the relevant working is presented. The table shows the reduction in thickness from its measurement in When A or B marks are awarded for work at an intermediate stage of a solution, there may be various alternatives that are equally acceptable.

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Mei ocr maths coursework

Some candidates needlessly went on to obtain the equation of the chord, and then differentiated it just to convince themselves that the gradient really was — 6, and a couursework went straight to finding the equation of the chord, and then left the answer embedded, which cost the accuracy mark. The objectives are that they should be able to undertake the various steps in the schemr solving procedure shown in the flow chart in Section 5.

Views Read Edit View history. Therefore M0 A1 cannot ever be awarded. Part ii Most recognised the arithmetic progression, but some were uncomfortable with a non-numerical a and made a spurious attempt to find its value.

Write down two equations in a and r, where a is the first term and r is the common ratio. A penalty is then applied; 1 mark is generally appropriate, though this differentixl differ for some units. The A, M and B annotations must be used on your standardisation scripts for responses that are not awarded either 0 or full marks. A very few differentiated instead of integrating. Click here to sign up. The situation regarding any particular cases where the accuracy of the answer may be a marking issue should be coudsework in the mark scheme rationale.

By and large the correct formulae were used and the entire solution was worked in radians, nearly always resulting in full marks. In both cases an easy mark schmee lost. Description There are two aspects to the work. A common error was to omit the minus sign from the first term. Your email address will not be published. Some candidates worked in degrees didferential then worked with rounded numbers, often following on to over specify their answer and lose the final mark.

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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.

mei ocr maths coursework

Question 2 Part i This was done very well. The Question Paper consists of 8 pages. This is produced for each series of examinations and is freely available to download from our public website www. Log In Sign Up. Often this went astray, resulting in a loss of three marks.

Question 8 Most candidates recognised one of the trigonometric identities required, and then made no further progress. Help Center Find new research papers in: Some candidates slipped up finding the value of y, and a few made sign errors when finishing off.

mei differential equations coursework mark scheme

Premature approximation followed by over-specification of final answers also cost some candidates easy marks. A segment of the circle is shown shaded in Fig.