The most recent update summary for parents from Education Scotland [August 2012] gives a useful briefing.
The following website provides access to a wide range of documents on Curriculum for Excellence:
Materials used with parents in November 2011 are available in the sub section: Information for parents.
There is also a great deal of information available from the Scottish Qualifications Authority at :
Holyrood Secondary School
100 Dixon Road
Phone: 0141 582 0120
Fax: 0141 582 0121