The effects of teachers' audio feedback on students' project-based learning and its influencing factors have seldom been empirically explored in the higher education context. To address this research gap, a group of Hong Kong freshmen (18-23 years old) and their teachers were involved in this study. Data were collected from students' retrospective journals, post-journal interviews and teacher interviews after the participants experienced audio feedback during their group projects in a General Education course. The findings demonstrated that teachers' audio feedback enhanced students' learning engagement, critical thinking and project output. The students also reported that audio feedback provided convenience, timeliness, rich information, asynchronous discussion and social presence. Other factors including the features of audio feedback, communication between student and teacher on the received feedback and their learning motivation were also crucial in determining the effects of audio feedback on student project-based learning. Copyright © 2022 Routledge.

There has been an increasing attention to integration of project-based learning into Asian school curricula. And the notion of learning community is a heated topic for learning to learn in knowledge-based societies. Yet the cognitive research on using web-based learning community for project-based learning is still under-developed in Asian contexts Based on literature review, some directions in collaborative learning strategies are suggested in web-based learning community or ecology. Through a scrutiny of basic functional tools of a web-based collaborative learning platform called Knowledge Community (KC), the paper endeavors to highlight the significance of four senses of scaffolding supports (in Vygotskian terminology) for knowledge co-construction and pedagogical facilitation in groups of primary and secondary (Grade 1-12) students in Hong Kong and Singapore. Copyright © 2004 全球華人計算機教育應用學會.