755 schools within LA Proper and 1127 schools within the schools la unified school district system, for a grand total of 1882 schools.
The top section uses Google Maps API V3, while the bottom section is using v2 for the animated streetview functionality.
If you see the page refreshing itself, then it is due to an error being encountered followed by retrieving the data once again from google, which will reiterate until the exact information has been ascertained perfectly.