A middle school science teacher provides instruction in science to students. Middle school grades can vary from state to state, but your duties usually involve teaching children in grades six through eight. Your responsibilities focus on basic science. You plan lessons, teach the class, assign homework, and use tests and quizzes to assess students’ knowledge of the subject. Middle school science courses often include hands-on work, so you also plan and oversee lab experiments and field trips. Middle school science does not focus on specific topics but offers a broad look at life sciences and earth sciences.