I would assume they have broken down the components of the units and the marks are given for each component. This is what happened in my son's GCSE exams in Science.

I expect there is a better way of saying it.


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Note added at 2 hrs (2009-09-07 14:50:58 GMT)
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# [PDF]
GCSE A4 SPECs 2011:Layout 1
File Format: PDF/Adobe Acrobat - View as HTML
acquire and apply skills, knowledge and understanding of how science works and its ... This amounts to 10% of the available marks in this component which itself ... understand that electronic systems can be divided up into ..... In these parts of these units, candidates will be assessed on the quality of their ...
www.wjec.co.uk/uploads/publications/4452.pdf - Similar
# [DOC]
Ysgol Gyfun Dwr-y-Felin Comprehensive School
File Format: Microsoft Word
GCSE core science (1 GCSE – 6 lessons a fortnight). If only one science ..... There will be an examination in each component at the end of the course. ..... The course is made up of six units = two core units and four specialist units. ..... Coursework is worth 40% and this is divided into three parts: ...
www.dyf.org.uk/Options Booklet.doc - Similar

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Note added at 2 hrs (2009-09-07 14:51:14 GMT)
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or

component parts of teaching units