Write with your right, right?

Our six-year-old has added an inch since March 20.

Emily is having fun with homonyms today. It's Sunday and we're having a sundae! (Actually a banana-strawberry-orange smoothie) On the way over here, she discovered that when we turn right, we think of the right hand, which is the writing hand, right? (Except if you're a southpaw.) What's a southpaw? Why do they call it southpaw?
Wash your hands, Emily. We're going to do a puzzle now.