* All the teaching unions have information and advice on their websites - just enter "six-term year" into the search engines at www.teachers.org.uk; www.teachersunion.org.uk; www.askatl.org.uk.
* Professor Trevor Kerry has published a series of articles on the school year. These are available at www.sourceuk.net columniststrevorkerry-articles.html.
* Caroline Sharp's summary of research into the effects of summer learning loss in the US and the UK, as well as other issues relating to the school calendar, is available at the National Foundation for Educational Research website (www.nfer.ac.ukresearch papers.YREpaper.doc).
* For a look at what's happening in the US, www.nayre.org is the website of the National Association of Year Round Education, and www.sedl.orgpolicy insightsyearround9303.html also has useful information.