AnsNov06ChemistrySLp3

AnsNov06ChemistrySLp3 - c IB DIPLOMA PROGRAMME PROGRAMME DU...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI N06/4/CHEMI/SP3/ENG/TZ0/XX/M 13 pages MARKSCHEME November 2006 CHEMISTRY Standard Level Paper 3
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
– 2 – N06/4/CHEMI/SP3/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.
Background image of page 2
– 5 – N06/4/CHEMI/SP3/ENG/TZ0/XX/M Subject Details: Chemistry SL Paper 3 Markscheme General y Each marking point has a separate line and the end is signified by means of a semicolon (;). y Alternative answers are separated by a slash (/) – this means that either answer is acceptable. y Words underlined are essential for the mark. y Material in brackets ( … ) is not needed for the mark. y The order in which candidates score marks does not matter (unless stated otherwise). y The use of OWTTE in a markscheme (the abbreviation for “or words to that effect”) means that if a candidate’s answer contains words different to those in the markscheme, but which can be interpreted as having the same meaning, then the mark should be awarded. y Please remember that many candidates are writing in a second language, and that effective communication is more important than grammatical accuracy. y In some cases there may be more acceptable ways of scoring marks than the total mark for the question part. In these cases, tick each correct point, and if the total number of ticks is greater than the maximum possible total then write the maximum total followed by MAX . y In some questions an answer to a question part has to be used in later parts. If an error is made in the first part then it should be penalized. However, if the incorrect answer is used correctly in later parts then “follow through” marks can be scored. Show this by writing ECF (error carried forward). This situation often occurs in calculations but may do so in other questions. y Units for quantities should always be given where appropriate. In some cases a mark is available in the markscheme for writing the correct unit. In other cases the markscheme may state that units are to be ignored. Where this is not the case, penalize the omission of units, or the use of incorrect units, once only in the paper, and show this by writing 1(U) at the first point at which it occurs. y Do not penalize candidates for using too many significant figures in answers to calculations, unless the question specifically states the number of significant figures required. If a candidate gives an answer to fewer significant figures than the answer shown in the markscheme, penalize this once only in the paper, and show this by writing 1(SF) at the first point at which this occurs.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/15/2011 for the course CHEM 102 taught by Professor Freeman during the Fall '08 term at South Carolina.

Page1 / 11

AnsNov06ChemistrySLp3 - c IB DIPLOMA PROGRAMME PROGRAMME DU...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online