American Child & Teen Smart Phone Users By Grade Level, February 2013 [CHART]
Kids are learning earlier than ever to swipe and scroll on smartphones. Harris Interactive surveyed online US students in February 2013 on behalf of Pearson and found that 19% of elementary school students used smartphones and 42% of middle school students did so as well. Elementary school consisted of grades 4 and 5, while middle school represented grades 6 through 8. Read the rest at eMarketer.