What I see is pre/teens spending most of their days (evenings and weekends) on social media using devices mandated by schools and purchased at great cost by parents. I see close to none usage of the same devices for improved learning/teaching.
Kids don't hang out on Wikipedia. They follow pop stars on Instagram. All day (and night if not restricted) using electronics that supposedly improves education.
Majority of 'educational' usage is along the lines of looking up class schedule online and doing homework on ebooks which could very well be paper based. For example what are the benefits of using drawing program vs paper, pencil, ruler for basic geometry? Is it worth spending money on iPad Air to facilitate this? Wouldn't be better to use these funds for better teacher pay and teacher/student ratios?
Are there any studies supporting or disproving my observations? What are your personal observations?