Do you mean the ones where there are two higher than you can jump, and two below that you can jump to but can't get anywhere from?
Those are useless until you press a button to get to the other side, they are simply a means of getting there and back quickly. Go back to where you first started in the cloud domain, jump onto the fan platform on the left when facing moneybags. Don't go straight though, if you turn you'll see another a series of platforms leading upward. Jump from one to the other until you get to the top, there should be one moving up and down, and a dissapearing one, don't jump to the blue one, stay on the fan platform until it goes up. The jump onto the platform with the chickens on it. Near that platform there should be two circular plat forms, when you jump on one the rim lights up purple and the other moves. It shouldn't take long for you to find out how to use them. After that just go from there...
If this wasn't what you were having trouble with, pardon me XD. I'm tired and am to desperate to get to the next realm to sleep... -.-.