Schedules

I have been working on the schools schedule for the past 3 days. It has been difficult because we have 4 different tracks of students. There are the group of students who are taking all american high school classes, the group taking most american high school classes except math, an 8th grade class and a group of students who need to do some ESL before they begin their classes. I sort of got the schedules done today. I will be teaching a math class (I have no idea what the students need so I have to wait until they arrive to plan), a biology class, a chemistry class and an 8th grade science class. I am worried about the biology and chemistry lab because I am not exactly trained in these subjects. I am excited about the chemistry, but the biology has me worried. Please pray the students don't hurt themselves.