text: The school can be a lot more peaceful because instead of talking we could text. Many other features will help. Calendars help because we can put test dates and sports games on it to help remind us. We can also use it as a planner to write down what we did inUsing the facial action coding system is useful for students and is valuable in the classroom. It is better for humans and for computers to communicate. The author uses technology, facial expressions and students. To prove why students need facial action coding systems in classrooms.