Mathematics HL - Nov 2005 - P1 \$

# Mathematics HL - Nov 2005 - P1 \$ - c IB DIPLOMA PROGRAMME...

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c IB DIPLOMA PROGRAMME PROGRAMME DU DIPL&ME DU BI PROGRAMA DEL DIPLOMA DEL BI N05/5/MATHL/HP1/ENG/TZ0/XX/M+ MARKSCHEME November 2005 MATHEMATICS Higher Level Paper 1 16 pages

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- 2 - N05/5/MATHL/HP1/ENG/TZ0/XX/M+ 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 authorization of IBCA.
- 3 - N05/5/MATHL/HP1/ENG/TZ0/XX/M+ Paper 1 Markscheme Instructions to Examiners Note: 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. Examiners should record these marks using the abbreviations shown on 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: (C) Marks awarded for Correct answers (irrespective of working shown) (M) Marks awarded for Method (A) Marks awarded for an Answer or for Accuracy (R) Marks awarded for clear Reasoning Note: It is not possible to award (M0)(A1) . Follow through (ft) marks should be awarded where a correct method has been attempted but error(s) are made in subsequent working which is essentially correct. & Penalize the error when it first occurs & Accept the incorrect result as the appropriate quantity in all relevant subsequent working & If the question becomes much simpler then use discretion to award fewer marks Examiners should use (d) to indicate where discretion has been used. It should only be used for decisions on follow through and alternative methods. It must be accompanied by a brief note to explain the decision made. 3 Using the Markscheme (a) This markscheme presents a particular way in which each question may be worked and how it should be marked. Alternative methods have not always been included. Thus, if an answer is wrong then the working must be carefully analysed in order that marks are awarded for a different method in a manner which is consistent with the markscheme. Indicate the awarding of these marks by ( d ).

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- 4 - N05/5/MATHL/HP1/ENG/TZ0/XX/M+ Where alternative methods for complete questions are included, they are indicated by METHOD 1 , METHOD 2 , etc . Other alternative (part) solutions, are indicated by EITHER & OR . Where possible, alignment will also be used to assist examiners to identify where these alternatives start and finish.
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Mathematics HL - Nov 2005 - P1 \$ - c IB DIPLOMA PROGRAMME...

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