Mathematics HL - May 2003 - P1 $

Mathematics HL - May 2003 - P1 $ - INTERNATIONAL...

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MARKSCHEME May 2003 MATHEMATICS Higher Level Paper 1 13 pages M03/510/H(1)M+ INTERNATIONAL BACCALAUREATE BACCALAURÉAT INTERNATIONAL BACHILLERATO INTERNACIONAL c
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This markscheme is confidential and for the exclusive use of examiners in this examination session. It is the property of the International Baccalaureate and must not be reproduced or distributed to any other person without the authorisation of IBCA. – 2 – M03/510/H(1)M+
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Paper 1 Markscheme Instructions to Examiners Note: The number of marks for each question has been increased to 6. Where there are 2 marks ( e.g. M2, A2) for an answer do NOT split the marks unless otherwise instructed. 1 Method of Marking (a) All marking must be done using a red pen. (b) In this paper, the maximum mark is awarded for a correct answer , irrespective of the method used. Thus, if the correct answer appears in the answer box, award the maximum mark and move onto the next question; in this case there is no need to check the method. (c) If an answer is wrong , then marks should be awarded for the method according to the markscheme. (A correct answer incorrectly transferred to the answer box is awarded the maximum mark.) 2 Abbreviations The markscheme may make use of the following abbreviations: M Marks awarded for Method A Marks awarded for an Answer or for Accuracy G Marks awarded for correct solutions, generally obtained from a Graphic Display Calculator , irrespective of working shown C Marks awarded for Correct answers (irrespective of working shown) R Marks awarded for clear Reasoning 3 Follow Through (ft) Marks Errors made at any step of a solution can affect all working that follows. To limit the severity of the penalty, follow through (ft) marks should be awarded. The procedures for awarding these marks require that all examiners: (i) penalize the error when it first occurs ; (ii) accept the incorrect answer as the appropriate value or quantity to be used in all subsequent working; (iii) award M marks for a correct method and A (ft) marks if the subsequent working contains no further errors. Follow through procedures may be applied repeatedly throughout the same problem. – 3 – M03/510/H(1)M+
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The following illustrates a use of the follow through procedure. 8 M1 × A0 8 M1 8 A1 (ft) Amount earned = $ 600 × 1.02 = $ 602 Amount = 301 × 1.02 + 301 × 1.04 = $ 620.06 $ 600 × 1.02 M1 = $ 612 A1 $ (306 × 1.02) + (306 × 1.04) M1 = $ 630.36 A1 Marking Candidate’s Script Markscheme Note that the candidate made an arithmetical error at line 2; the candidate used a correct method at lines 3, 4; the candidate’s working at lines 3, 4 is correct. However, if a question is transformed by an error into a different , much simpler question then: (i) fewer marks should be awarded at the discretion of the Examiner; (ii) marks awarded should be followed by “ (d) ” (to indicate that these marks have been awarded at the discretion of the Examiner); (iii) a brief note should be written on the script explaining how these marks have been awarded.
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Mathematics HL - May 2003 - P1 $ - INTERNATIONAL...

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