The Metaverse is a network of 3D virtual worlds supporting social connections among its users and enabling them to participate in activities mimicking real life. It merges physical and virtual reality and provides channels for multisensory interactions and immersions in a variety of environments. Metaverse is considered the third wave of the Internet revolution, and it is built on new and emerging technologies such as Extended Reality (XR) and Artificial Intelligence (AI). Research on the impact of the Metaverse on education exploded in 2022. Here we explore learning across the Metaverse and propose a new and innovative theoretical framework by reviewing literature and synthesizing best practices in designing metaverse learning environments. This Ecosystem consists of four major hubs: A) Instructional design and performance technology hub, B) Knowledge hub, C) Research and technology hub, and D) Talent and training hub. Common to all four hubs are the factors in the three wheels (Fig. 8): a) Infrastructure, business industry, and communication&

Metacognition is regarded as a retrospective skill promoting learners’ learning performance, deep thinking, and academic well-being. Stimulated Recall (SR) is regarded as a reliable approach to inspiring learners’metacognition in the classroom. However, the outbreak of COVID-19, causing widespread class suspension, may impair the effect of SR on cultivating distance learners’metacognition. The current study, employing multi-mode stimuli of learners’eye movements and feedforward, aimed to develop the effect of SR on activating learners’metacognition in remote settings. Forty-eight university graduates were recruited to participate in an eye-tracking experiment using digital dictionaries. Their feedforward and eye movements were collected as multi-mode stimuli. By reviewing the consistency and discrepancies between their feedforward and eye movements, participants were invited to conduct an SR interview, which stimulated them to retrospect on their prior cognitive behaviors. The results of the metacognition scale pre-post test showed that learners’ metacognitive skills were significantly improved by the stimulated recall with multi-mode stimuli. The findings theoretically enrich the metacognition strategy in the Cognitive Theories of Multimedia Learning, and practically extend the implementation of stimulated recall in distance learning contexts.