Your School Subsite consists of duplicated templates. These work the same as the original template, outlined below. Any pages on the School site must use school specific page templates. 

Homepage

Your School Index template is your school's homepage. This can only be used once. The School Index works exactly the same as your site's Index - explained here.

Subpages

You have two subpage templates, which can be used as many times on the School site as you'd like. School Subpage Default works the same as Subpage Default (explained here)  and School Subpage Fullwidth works the same as Subpage Fullwidth (explained here). 

Layouts

School Articles Template works the same as Articles #2 (explained here). To make Articles appear on the School site, not the main site, add them to the category School. Any children categories of School will appear on the School Articles layout as well. 

School Event Template works the same as Events #3 (explained here). To make Events appear on the School site, not the main site, add them to the category School. Any children categories of School will appear on the School Events layout as well.

School New Here Template works the same as New Here #3 (explained here). 

School Staff Template works the same as Staff #3 (explained here). You'll want to add School staff to the “School - Staff Groups”, "School - Staff Groups Featured", and "School - Staff Groups Pastors" Series to have them appear on the School Staff page.