Go Hunt Everywhere

Training a dog is not a particularly complex thing.  It takes mostly time and patience.  Some things never change, regardless of what you are teaching your dog to do (or not do).  First and foremost, we need to understand that dogs are pack animals.  Second, decide on what the command is before teaching it to your dog.  Thirdly, decide whether to train with treats, correction, or both.
Pack animals operate instinctively on a well-defined hierarchy, or pecking order.  In order to get your dog to pay attention and do what you want it to, you have to assert yourself as being higher in the pecking order than he or she is.  For a while, given the opportunity, they will take a higher place if they can get it.  For example, I have two German Shorthaired Pointers, Storm and Blaze.  They are both just over a year old.  Blaze seems to be pretty content where he is and is easy to work with and train for the things I want him to do.  Storm, on the other hand, still challenges me, trying to insert himself into a position above me.  It’s usually him ignoring a command and me chasing him around the yard. I have to make sure I do not allow him to take the upper hand.  
The easiest way I have found to assert your position is to teach and practice the “DOWN” command.  This is particularly useful because it forces the dog into a subordinate posture.  When a dog is standing up or even sitting, he is in a position of control.  He can run, jump, or any number of things.  Lying down, however, puts your dog in a somewhat vulnerable position, subordinate to you.