As school wraps up for the summer, your kids are likely awaiting the freedom of homework-free days. They're probably envisioning endless mornings of watching their favorite shows, afternoons spent playing video games and nights glued to your phone. Yeah, like that's going to happen. Don't let your kids stare at screens all summer — instead, let them occupy their time with these fresh-air projects. You can help them construct a tire swing and an outdoor movie screen, or start a lemonade business that allows them to buy junk food at a baseball game. When the long days of summer are filled with these kinds of activities, the great outdoors will seem so much more fun than a screen.