I think flight time and maintenance time is suppossed to be clocked for actual flight (off the ground). But most schools sign your log for the time used (master on) that they charge out to the student. It would hard to charge for 1.1 hour and sign the log 1.0 hour.
The previously mentioned school also charged for ground training, which is common I suppose. But they would bill me for the instructors time while I performed the preflight everytime. That really angered me. The preflight check list was about 6 pages and takes about 15 min. Then the post flight ground instruction was usually about 5 min and the charge was 30 min(to include the preflight).
Shop around.
Another freelance instructor gave me 3 hours of ground for free. Go for a freelance if you can.