HERO-1 has been around since the early 80’s. It is an excellent teaching tool and robot lab. This educational robot can detect light, sound and movement and maneuvers easily.
ROTI is a telepresence robot that makes learning English easier for non-native speakers. It gives real-time English lessons to students and can be controlled remotely.
Korean Institute of Science and Technology developed an educational robot called VANI. It teaches English to children, has 3D GUI to interact with them and can detect obstacles.