摘要：This article presents a social and collaborative model for content enrichment in Ubiquitous Learning Environments. Designed as a loosely coupled software architecture, the proposed model was implemented and integrated into the Classroom eXperience, a multimedia capture platform for educational environments. After automatically recording a lecture in instrumented classrooms, students and instructors can enrich its content with comments and rating features. The platform usage was monitored for three school semesters to analyze the receptivity and the impact of the proposed features over 121 undergraduate students. As a result, we observed that both systems access rate and students performance increased, suggesting that interactive features leverage collaborative learning interactions and promote the teaching/learning process.
关键词：Educational content enrichment; Social and collaborative learning; Ubiquitous learning environments
