So sorry for your loss. I have dabbled myself in obedience dog training but it's been many years ago. I taught the dogs such as a hand signal with a word. If they performed they got a treat if they didn't perform no treat. Surprisingly they learned pretty quickly. I'm sure it was the treats. It got to a point when I would give them a command they would still perform well but I always gave them praise when they did well. They like to please their masters. Good luck...