Although students need to self-monitor and manage their learning process for effective metacognition, it can be particularly challenging in solitary e-learning environments that rely on pre-recorded videos. Unlike interactive e-learning or physical classrooms, typical e-learning environments prevent students from interacting with their teachers and peers, thereby hindering metacognitive support. To address this challenge, we introduce GPTalk, a system designed to support students’ learning experiences by facilitating interactions with LLM-based virtual companions. Through interviews with students and teachers, we identified design recommendations and implemented them in GPTalk. A user study involving 32 high-school students demonstrated that, compared to a baseline system, GPTalk fostered richer metacognitive engagement and self-regulated learning processes during video-based study (e.g., more monitoring questions and in-situ reflections), while short-term content understanding accuracy remained comparable across conditions. Overall, our findings suggest that students’ interactions with a virtual teacher and peer can support key aspects of their metacognition and self-regulated e-learning processes.

In this video clip, the development of ubiquitous CPR(Cellular Phone Robot), which adds personal robotic features such as mobility and emotion to CP(Cellular Phone), is presented. We described a prototype implementation of CPR and demonstrated its successful navigational ability. CPR movement are controlled by the data acquired from velocity sensors and the coordinates from RFID tags on the floor. Emotion modules of the CPR Interaction system stimulate human touch-sense through vibrations, olfactory-sense through perfumes, and visual-sense through motion patterns. Biometric signals of human can be effectively measured with ECG and EDR. Experimental results show these easy-to-mount on CPR Equipments are sufficient for generating reliable signal measurements. People will rely more and more on robotic assistants in the near future. Personal robots will lead the way to the new era. CPR provides a stepping stone.