Looking for a good gross motor skills lesson? Here's one that is sure to delight your little ones. They get to go bowling! You use milk cartons that have the numbers 1 - 10 on them. Kids set up the "pins" in a triangle shape, and use a ball to knock them over. You can keep score by adding up the numbers on the milk cartons, or just by how many cartons they knock over. This lesson is based on the Arthur episode: "Mom and Dad Have a Great Big Fight."