So, as I have mentioned before, I recently moved from the city to the mountains. Well, I've lost the ability to take Harvey for walks, but I've gained the space to finally learn how to play treibball. So I've started by buying a mat and a big blue ball. I read that the first thing the dog needs to do is learn a very good "place" command on their mat. Well, I've been at it for a week or so now and I really don't feel like Harvey is getting it. I can get him to lie down on the mat with a "place" command and I reward him, but I feel like the association is being made with lying directly in front of me. I'm not even sure he knows (or cares) that the mat is there. How can I better help him to make the correct association?