Home landing page for NCG - this page can be customised and by default is open for public to view. Links to this page can be included in school web/intranet navigation. A custom theme for the school can also include links to this and other pages created on the site.
This is a course category - categories are mainly used for admins to give a basic structure to how courses are placed within the system. However this hierarchical structure does not need to dominate the way staff and students navigate within the site. Moodle works on the basis of users having a login account and then being assigned to a role within each course they require access to. When they login they see a personal list of courses they have access to and almost never browse the category structure at all. Read more about categories here.
Most teachers and staff won't see this page very often, having been directed to the NCG home page. A custom NCG theme can be set to automatically show on all courses within this and any sub-category. The NCG administrator comes to this page to add new courses.