Los Angeles Unified just voted 6-0 to restrict screens in classrooms and bring back pen and paper. This is the same district that spent $1.3 billion on iPads in 2013. The FBI investigated that program. Pearson paid a $6.4 million settlement. Apple paid another $4.2 million. 650,000 students were supposed to get tablets preloaded with curriculum that turned out to be "sample units" rather than a finished product. Students hacked the security in days and used the iPads to browse the open…