text: Using the computer software to read the emotional expressions of students could even help the teachers communicate with the students to see what they are struggling with. This way the teacher could discuss with the student about which parts the student does not understand. It would be smart and hughly effecient to enforce this computer software in classrooms. It would have a great effect on not only the students so they could ge good grades, but the teachers too; so they can know how to verbally express themselves while teaching.The author supports the idea that studying Venus is a worthy pursuit depite the dangers by giving us an idea of what NASA is working on to get around the danger, giving us reasons why Venus is a sister planet to the Earth, and by showing us some key items that we could research. Venus is the closest planet to Earth in density and size. It is often referred to as Earth's twin because of this. However, their are some dangers to eploring the planet more in depth.