Also, how to read, write, spell, and get along with others who have different perspectives on things. you know, valuable life skills.
You wanna tell me about how evil teachers are, My mom who is a kindergarten teacher in California recently had a student attempt to stab her with scissors because she told him to stop playing in the faucet and continue with his school work. He wasn't strong enough to actually break skin luckily. There is no such thing as a one sided story, its not always the teacher who is the evil one.