Scooch.

I have so many videos of this but I had to capture it on film too.  The little mama has figured out how to go downstairs backwards.  And it’s adorable to watch. She crawls over, turns herself around and then scooches her butt side to side to back up to the edge of the step.  Then ever so cautiously and slowly, she lowers a foot to the ground.  Once she feels herself on solid ground, she brings the other foot down and merrily continues crawling on her way.