I also trained here and we too did a workshop on CVs. The consensus was that most people do have extremely lengthy (4++) page CVs. However the five principals who were present did say that they rarely read past the first couple of pages. The most important thing is to show that you're a good fit for their school. After all, isn't the point of your CV to get an interview?

The uni lecturers handed around thick, professionally bound CVs filled with coloured photos of teachers working with children etc. It's so unnecessary! Quality, not quantity...right?

There was an article in the newspaper a year or so ago about teaching CVs and how over-the-top they were. In the article one principal mentioned how one CV was shaped like a fish .... and that despite their uniqueness, that person didn't get the job.