First of all, I'm sorry if this seems like a stupid question - I ran a search but couldn't find anything similar - but when I say I'm a new diver, I mean I did my first open water dive a couple days ago (amazing and nerve-wracking at the same time!) so I'm still finding my feet in this exotic world 
Anyway, my situation is this: having done this first dive, I decided to go for my Open Water. I did a little research and it mentions five pool dives and four open water dives, yet this center says I can become certified in three days (I should probably add that this isn't something they brag about offering or try to pressure me into; it's more a case of 'well, you could do it that way if you wanted to, but if you'd rather take your time then that's fine too').
Is it normal to cover more than one key point in one pool session, thus reducing the number of pool dives to two or three as opposed to five? I want to become certified but I don't want to rush things for the sake of it
Thanks for reading and any answers would be much appreciated.

Anyway, my situation is this: having done this first dive, I decided to go for my Open Water. I did a little research and it mentions five pool dives and four open water dives, yet this center says I can become certified in three days (I should probably add that this isn't something they brag about offering or try to pressure me into; it's more a case of 'well, you could do it that way if you wanted to, but if you'd rather take your time then that's fine too').
Is it normal to cover more than one key point in one pool session, thus reducing the number of pool dives to two or three as opposed to five? I want to become certified but I don't want to rush things for the sake of it

Thanks for reading and any answers would be much appreciated.