Abstract

Online engagement and discussion empower student learning, but existing tools vary widely in their design and effectiveness. This paper critiques three categories of online discussion tools used in higher education: social media platforms (e.g., Facebook), purpose-built educational platforms (e.g., Piazza), and bespoke institutional solutions (e.g., Casper). Each category has distinct strengths and weaknesses, particularly in relation to scale, anonymity, and alignment with pedagogy. We analyse these categories through user stories, platform features, and comparative analysis, before considering how artificial intelligence (AI) might enhance them. While AI offers promise in moderation, summarisation, and engagement prediction, it also raises concerns of privacy, bias, and sustainability.

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