Synchronous online teaching through video-conferencing software (VCS) has become a common mode of instruction during the COVID-19 pandemic. This mode brings unique challenges for teachers that require specific professional digital competences. One such challenge is conducting formative assessment. Through the use of in-depth interviews with nine Hong Kong university teachers who had taught synchronously online for one semester, this exploratory study explored the challenges of conducting formative assessment during synchronous online lessons and the strategies teachers deploy to conduct formative assessment. The findings indicate that the key difficulties include gathering information on students' needs, checking students' understanding, giving individual feedback, and building relationships with students. To address these challenges, the teachers suggested four pedagogical strategies: (1) Combine synchronous with asynchronous approaches; (2) Utilise breakout rooms; (3) Utilise poll functions of the VCS and combine it with other online platforms; and (4) Provide time before or after lessons for informal conversations. The findings suggest that teachers need to develop specific pedagogical strategies to conduct formative assessment. This provides an initial conceptualisation of one important dimension of Professional Digital Competence, teaching using digital technologies, and one aspect of that dimension, how teachers use digital tools and strategies to conduct formative assessment. Copyright © 2023 Taylor & Francis.

In recent years, the widespread growth of mobile-assisted language learning using apps has made English vocabulary learning increasingly accessible. This study investigated students' perceptions of a vocabulary learning app developed by the researcher as a tool to help them to improve their L2 receptive vocabulary. The app, containing 20 levels, works with both iOS and Android. The participants were 14 undergraduate students at an English-medium university in Hong Kong. A qualitative methodology of semi-structured interviews captured a holistic overview and revealed students' perceptions of the app. The results suggested that Hong Kong university students have a strong motivation for acquiring an L2 vocabulary. Participants also indicated a preference for mobile applications using gamified features. The study highlights directions for future research into apps for English language learning. Copyright ©I G I Global.

In higher education, understanding discipline-specific vocabulary can be challenging. Insufficient vocabulary can be a major challenge for students as they begin their university studies. This study examined university undergraduate English language learners' discipline-specific vocabulary retention when they used an in-house developed mobile app, Books vs Brains@PolyU, in Hong Kong. A total of 159 second language (L2) students from four disciplines participated in the study, and they completed a pre- and posttest consisting of 120 words in four difficulty levels in their chosen disciplines. The results suggested that participants acquired more vocabulary words at the intermediate and advanced levels than at the beginner and elementary ones. The findings improve the understanding of MALL and vocabulary acquisition using apps to facilitate and support learners' academic studies. Copyright © 2020 The Author(s).

The presented research discusses students’ perceptions, attitudes and expectations of a game-mediated vocabulary app. Throughout the development of the mobile app, continuous focus group interviews with students were held. The collected data were coded and analysed to identify common features or points mentioned by the students. The results showed that students highly value features like the story plot, graphic, vocabulary list and types of definitions for the design of vocabulary learning APPs. Based on these findings, the APP was further improved by adding synonyms, sentence contexts and extended definitions of the words. Our followed-up interviews indicated that students rated the improved version of the APP higher than the preliminary one. Such findings are consistent with Zou’s (2016, 2017) arguments that the availability of various aspects of word knowledge are conducive to effective word learning as it promotes greater degree of elaboration on the target vocabulary. Copyright © 2018 individual authors.