text: We need to help other community, we don't care if they going to help us or not. If we help them first then they know who help them. Next time they going help us back too. We have to help them first. In United states, they don't need for help. they know how to do something, they know to make something nice and strong before they can help other community. They just help other community. who is the poor family, They give food, they give rice, and they give all of stuff they have. They love to help other community.Is this technology that is able to read students' emotional expressions valuable?