Teach him in a round yard. Just turn him loose and have him move off by keeping your whip behind him. When you want him to turn move your whip infront of him. If he turns in towards you make him turn back until he figures out for himself to tun to the fence. It wont take him long. Get him to speed up with voice commands and the use of your whip behind him, keep your body in line with the hip. To slow him, talk him down and move your body in line with his shoulder, and put your arm out. Do the same to stop him and then wait for him to come in. Use whistles, clicking or any other noise he finds comforting. If he doesnt respond in about a minute take a few steps back. If he still doesnt respond make him move off again and keep doing that until he realizes to come to you.