Saya, the female humanoid robot, taught a science and technology lesson to a class of 10-year-old pupils at Kudan Elementary School in Tokyo.
With her neat brown hair, pink lipstick and skirt suit, the robot, created by scientists at Tokyo University of Science, has been designed to resemble as human a form as possible.
While Saya's creator Professor Hiroshi Kobayashi said the robot's main purpose was to highlight the joys of technology to children, he also said it would benefit schools suffering from a shortage of human teachers.
"In the countryside and in some small schools, there are children who do not have the opportunity to come into contact with new technology and also there are few teachers out there that can teach these lessons," said Professor Kobayashi.
"So we hope to be able to develop this robot so it can be remotely controlled to teach these classes."
Saya was initially created to work as a receptionist in Japanese companies five years ago but was recently reprogrammed by scientists into its latest incarnation as a schoolteacher.