This is the first generation in history where parents and their children have cellphones. So a certain degree of uncertainty is only natural, according to Rodger Dinwiddie, an educational consultant who spoke with school system employees Monday at WCHS.“When it comes to children and cellphones, there is no norm,” said Dinwiddie. “We’re building the airplane as we’re flying.”Dinwiddie spoke to local school officials about a variety of Internet-related issues such as cyberbullying, sexting, and monitoring online activity.