Polk county has been selected for an optional study by CNN's Anderson Cooper 360 with Superintendent approval. The project will include teens from Indiana, Virginia, New York, Georgia, New Jersey, and Texas. Parents can go to cnn.com/teensocialmedia to register for the project. Letters were also sent home with 8th grade students from CNN on Monday. The listed goal is to "demystify how middle schoolers are using social media on a daily basis, so we can better understand how/why technology has become such an important part of growing up." Interested families should sign up by September 30th. CNN ensures that your family's privacy will be protected. Students must be 13 to participate.