Saya is a humanoid robot which resembles a female. This superbly designed robot has been used as a substitute for a teacher in Japan. This humanoid with feminine features was developed initially as a robot receptionist by Professor Hiroshi Kobayashi of Tokyo University. In the recent past it has been programmed to teach and hence, is being utilized in human robot interaction studies among children. Purpose of this research has been to teach children about new technologies rather than use these robots as ultimate substitutes to teachers. This elegant robot may prove to be useful in schools and educational institutions in case of shortage of teaching staffs. It has an ability to speak any of the programmed language and currently it can converse in multiple languages. This robot teacher can express basically six humane emotions like — surprise, fear, disgust, anger, happiness, sadness via facial expressions. A unique feature of Saya is that it is controlled by various cross linked wires and 18 separate motors on the face (that is, just under her latex) and eyes which enable it to aptly reproduce human emotions with at most accuracy. Its skin made of rubber is controlled by motors and wiring around the eyes and the mouth providing it a more human like appearance. In the age of mechanical – automotive robots, mind reading humanoids etc research in this teaching sector is an unprecedented development. Teacher robot concept reached a new high with the development of Saya in 2004.