Q: What happens when a baby brings hands to knees and then weight shifts or looks to the side?
A: Her whole body rolls to the side and she learns to control it and use it for function.
Around 5-6 months, this little one has learned to initiate some big movements like pushing up onto hands while on her stomach and grabbing knees and feet while on her back. She is busy reaching and looking around. Combining foundation skills such as hands to knees and weight shifts, larger movements begin to evolve, like rolling from back to side (otherwise known as supine to sidelying).
What is happening as she rolls from supine to sidelying?