There are many places where having a dog know a “BACK” command can be very important, particularly in obedience. I’ve done a video on teaching your dog the skill, but several people have the same hurdle when teaching it – the dog lies down instead of walking backwards. So, this video will address some of the issues to either prevent that from happening or fix it! See: online dog training
It’s important to be patient when teaching new skills to dogs, in particular ones that are not natural for a dog such as the WALK BACKWARDS.
Since the dog doesn’t naturally know how to do this, we teach them the behavior and must address the muscle memory that it takes. Being patient when teaching it will make the experience a good one and help the dog learn it faster and with less mistakes.