I went looking for a map of schools on Prince Edward Island (at http://www.gov.pe.ca/gis/ for example) and couldn't find one, so I decided to hack one together myself.
The source information is the Department of Education and Early Childhood Development's School Finder which contains (somewhat inaccurate and poorly-formatted) civic address data.
I scraped this data, did some manual clean-up, and then matched each address against Prince Edward Island Civic Address data.
You can find the raw data files here or see the KML file displayed on a Google Map to preview it.
The map is likely still somewhat inaccurate due to issues with the original data source; please email corrections to me as you find problems and I will update.