Feedback we had from schools in the past was that the navigation was crucial to the success of the website. With this in mind we wanted to create a clear navigation system which would keep the front-end user happy as they browsed the site.
Integral to this is the drop down menu. In our v1 websites this was a full page width navigation, moving away from the traditional one column drop down.
The next phase was to improve this further, by creating sub-sections within the drop down. We understand the need for schools to publish lots of information and by adding this feature this can be done with the look and feel and of the site uncompromised.