I would say the crawling and walking stage. Can she sit up yet? My Amy had to be taught to sit up because even though she could do it, she did it all WRONG, they said. She would lay flat on her stomach and then bring each leg up right-angle to her waist while pushing her body up with her hands!! It was something to see!! LOL Little did we know it was a no no.
I've got 8 kids so I'm having trouble remembering, but I don't think Amy crawled. I think she went from sitting to pulling herself to a standing position to walking. And we had to trick her into walking.