Weather stations at 11 schools in Roanoke, Va., are being used by the schools to teach math and science. Fourth-graders at one school are getting hands-on experience by monitoring weather patterns, learning about different clouds and using weather data to create graphs. "Now they have a real life application and it's not just a line graph somebody else produced that they get to consume," teacher Wade Whitehead said. "They actually produced it themselves. It's more meaningful that way."