A computer science teacher teaches students about computers and computer programming. Your responsibilities cover teaching students to understand how computers work and instructing them on writing programs and algorithms. While most computer science (CS) education takes place at the high school level, some teachers work at the middle school or elementary level. Others teach at colleges and universities. All CS teachers must prepare and administer lesson plans, evaluate student work, and supervise students in the classroom. Motivating and encouraging students, as well as communicating effectively, are vital duties.