Homeschool? What's that?

We're several weeks into our visit to America, and homeschool has mostly gone out the window. Or has it? They've been consuming books like crazy (we're in the land of free and abundant libraries!). They've been learning how to play and live in a cold climate. They're developing their relationships with family they see about once a year. Last week they learned how to ski in Vermont. They're discovering what it's like to live in a different culture. So has the learning stopped? No. I guess it's just changed.