Discussions

So I have to outdoor dogs and they are outside a majority of the time. I wouldve thought that having them outside they would gather the concept of what grass was for but they havent. They keep pooping and peeing on our porch :S No matter how many times I go out there and move the waste to the grass and clean it up they keep coming back to the porch. It is quite disgusting but I have no idea what else to do.... Any help or experience would be appreciated. They also have a hard time with letting me know when they need to go when in the house so they'll just mess on the floor, not a fan. So I try and let them out every so often but not even that helps they just stand there and look at me.  
 
HELP!