spent years at preschool/elementary level; think the quickest way for change would be; strict phonics/grammar lessons until ALL students can read & write at least a 5th grade level, then fill their day with readings & discussions of classic literature, incorporating the Bible when possible. you can teach a child to teach themselves...much easier than trying to 'fill' them full of information. it's also the basis of socratic teaching; draw the information out of the student.