How does this work?

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Isaiah has been scribbling a lot lately. I got him a box of chalk for the chalk board we got at Christmas. He loves to scribble on the chalk board. Isaiah doesn't seem to have a hand preference yet. His left hand seems to serve him as well as his right. Like most of the world's population I'm a righty. If Isaiah decides he's a lefty, how does a righty go about teaching a lefty how to write? If he turns out to be ambidextrous I'll still have to figure out how to teach him how to write with his left hand. Something tells me he's going to have an appendage in a cast some day and will need to know how to use both hands equally well.

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