text: The FACS is a very valuable techonolgy for students because it helps to guide them through a problem they might be facing. It can help a classroom full of students that are confused on a lesson. The software can detect their emotional expressions and switch up the lesson to make it more understandable. For example if a student does not undertsand the problem, the computer can detect his or her confusion, and it will modify to fit his or her understanding. The software is very valuable for the emotional expressions of students in a classroom.          The author of the article "The Challenge of Exploring Venus" thinks that it is smart to pursue the study of the planet because it is close to Earth, it would give us worthy information about it's physical composition, and the plans being created to explore the planet are valid and reasonable. In the article, the writer shows us how closely Earth and Venus are related. The author uses evidence such as, "Venus is the closest planet to Earth in terms of density and size, and occasionally the closest in distance too." This not only gives us a size comparison, but also a distance comparison between the two, causing us to want to study the planet too. Also, the author also uses the fact, "Astronomers are fascinated by Venus because it may well once have been the most Earth-like planet in our solar system," which leads us to further our belief on how the planets are so similar.