ABSTRACT
Project-based learning (PBL) has been identified as an effective pedagogy for instructors to help students to learn interdisciplinary knowledge, problem-solving skills, modes of thinking, and collaborative practices through solving problems in a real-world context. However, previous studies reported that instructors from K-12 to tertiary learning environments found it challenging to implement such a pedagogy for various reasons. The emergence of PBL E-learning platforms in the recent decade has attracted increasing interest in adoption and seems to provide a solution to tackle the difficulties in PBL implementation. Yet little is known about designing these platforms and how they facilitate the PBL learning process and management. In the current study, we conducted a multiple case survey study on 16 PBL learning platforms in English and Chinese, collected data on their features and functions, categorized them according to their services provided, and analyzed how they tackle the implementation challenges. Additionally, we identified four trends in PBL development as pedagogy, the skills, and competence required for teachers and students to successfully carry out PBL via e-learning platforms and provide suggestions to improve and refine the platform design for educational technologists and related stakeholders. The limitations of this study and the future research direction are included.
ABSTRACT
What is already known about this topic? The coronavirus disease 2019 (COVID-19) epidemic in China had been effectively controlled for several months, but as the ambient temperature dropped, large gathering-initiated epidemics occurred in northern China, including Hebei, Liaoning, and Jilin provinces. What is added by this report? A sudden epidemic emerged in Wangkui County, Suihua City, Heilongjiang Province, on January 9, 2021. An asymptomatically-infected resident of Harbin City returned from Suihua and triggered a large-scale outbreak in the Zhengda Food Processing Company in Harbin, Heilongjiang. The epidemic was associated with widespread community transmission inside and outside the company, eventually leading to 260 persons being infected (87.8% of 296 patients in Harbin). What are the implications for public health practice? This study demonstrates the importance of screening for infections in the COVID-19 prevention and control system, shares experiences identifying and managing asymptomatic infections, and recommends food processing enterprises like the Zhengda Company to improve preventative measures. Our evidence-based epidemiological analyses provide methods for finding high-risk settings and evaluating epidemic situations when many asymptomatic patients are identified in a short period of time.
