This explanation of this particular troublesome pair is very definitely confined to British English. I will write something about the differences between British and American English on this blog at some stage. But this one is strictly English.
Again, this can be explained quite simply, although people seem to get in rather a state about it all. Maybe everyone’s bookmarking these posts so they don’t have to get in a state any more!
Practice is the noun – football practice, Best Practice, these dodgy practices have to stop.
Practise is the verb – Ben is practising his football techniques. I need to practise making up good examples. The GP practised handstands in the practice waiting room.
To sum it up in one go: Ben went to football practice to practise his goal-keeping skills.
You can find more troublesome pairs here.