text: In technology, the human muscles, 3-D computer model of the face and all major humans muscles are installed in the computer, "The process begins when the computer constructa 3-D computer model of the face; all 44 major muscles in the model must move like human muscles. Movement of one or more muscles is called an action unit". Technology should not be use to paint or even draw because technology cannot express human feelings and behavior. The use of technology to read emotions expressions of student in the classroom is not valueable because technology can never calculate the feelings or expression of humans.