I'd say it's a good idea to place them in a tank with a divider. Have you checked the pinned thread, by the way?
As for me, what I said was pretty much what I did to my gouramis. It's what my research has told me is best. Most of the stuff I've read states that you should give the female a few days alone in the tank to make sure she gets used to it before adding the male. I did that, but the male is still really aggressive and has sent her into hiding.