I teach a multi-age classroom of 4/5/6 graders. They love hearing out my dog, so I might first introduce conditionals with a video of me reinforcing a command with my dog. Then I would describe how my dog needs to follow the conditionals of the command in order to get a treat. If my dog brings back the toy he will get a treat, else he will not get a treat. I can also tie this into loops by expanding that my dog must get it and drop it for a treat. He sometimes tries to come back to me without the toy and I have to prompt him again.
Then I would go to the suggested card game activity.