text: In conclusion, Using this technology to read emotional expressions of student in a classroom is valuable, because it can help student to stay a wake, working hard, and change bad behavior in classroom.                        I believe they should change the voting to popular votes. In my perspective voters are the most important in the elections. There opinion on the president should be able to count either way. Lots of voters feel left out like there opinion dont count. Sometimes the president elected by the electoral college is not the one every one wanted; he has diffrent points of view in what he want to do.