I am a new substitute teacher. I am in a Masters and credential program at Biola University. I am working at Los Angeles Unified School District. The schools in this district are rough. I've subbed at several middle schools and high schools and I find 7th graders and 6th graders to be so hard to keep focused. I come from a family of two principals and I feel dumb. I need advice on how to teach them and keep them focused. They are inner-city schools, and that is where I am going to stay because I want to help them. If there are any teachers that could help me I would appreciate it.