Want to teach your dog while they play.....its possible. Imagine what your dog loves the most when he or she are playing...yes imagine! I dont know your dog but one of my dog loves her soccor balls, sticks, toy sticks, the beach, digging holes in the sand to name a few. So I combined her stick, her love for digging holes in the sand; which by the way she combines together and I use those to practice her recalls. I use a jolly voice with some lower value treats when she comes to me and then release her to the biggest value of rewards which is digging with her stick. My dog loves to have fun me and I love to have fun with her. That is one step in teaching a fantastic recall.