My school has four 'blocks'. A Block, which has four floors, B Block, which has two, C Block, which has one, and D Block, which has two. Different floors are for different things. A1 (first floor in A Block) is for languages and science. A2 is languages, geography and ICT. A3 is science. A4 is history and art. B1 is English, B2 is maths (however there is one room on B2 that is English, simply because they ran out of room on B1

). C Block is split into two areas - home economics and RE/PSHCE (religion, life skills and the such). D Block is entirely music. We also have TS corridor, which is for woodwork and graphics. The drama rooms are next to the bottom gym (we have top gym and bottom gym, top gym has the actual gym, bottom gym is for gymnastics), we also have a dance studio down there too. Aaand we have the sports hall, which is basically a leisure centre and is open to the public after school hours.
So... your schools are pretty small compared to mine.