Frankie has low muscle tone, as do almost all children with Down syndrome. It also affects many kids on the autism spectrum and sometimes even the typical population. If you imagine the fibers that make up a muscle, in people with low tone they’re just not as dense. It doesn’t mean she’s not strong. She just has to work harder to achieve the same results. She is actually really physical and walked relatively early for a baby with DS – first steps at 16 months and full-time walker from 18 months.

Frankie is terrific at motor planning as well – she is great at figuring things out. The other day I stood in front of her, legs spread wide in order to block her way. She looked to my left, then to my right and then gave me one of her sly little smiles, tipped back her doll stroller and pushed it and herself right through my legs.

She also has a surprising sense of spatial awareness. Just seconds after I took this video the stroller veered toward a car parked next to the sidewalk. I panicked and lunged, but she righted herself and continued on her way. As she pretty much always does.