I hate to hijack this post and I'm sorry if this is an obvious question I do not yet know the answer to, but how do you know where controlled and uncontrolled airspace is? Is it on a chart or do you just get to know as you go along?
LIZZ, It is on the chart, marked as class D / A etc, or restricted / prohibibted / danger areas etc, outlined in various colours. You will be shown how to find it by an instructor.
Edit: This is UK airspace.