The affordances of a mobile video-tagging tool for evaluating presentation skills in a second language.

This study investigated the affordances of a mobile video observation and tagging tool used to evaluate presentation skills in English language classrooms. The data consists of 35 video-recorded presentations in a higher education setting. Using a digital evaluation grid, the students received feedback based on visual analytics generated by the mobile app. The students then were asked to reflect on their performances, and were also asked to comment on the affordances and limitations of the method and the tool. Qualitative data that came from (1) students' written self-evaluations and reflections and (2) their reported perceptions of the affordances of the tool were analyzed using the Constant Comparison Method. Analyses of reflective writings indicated the dominance of negative self-evaluations of language use, while affective factors were also a strong theme. The video-tagging tool was found to be very beneficial by the learners, mainly in enabling them to notice their strengths and weaknesses in presenting in English and facilitating effective feedback. The results show that this data-led reflective presentation model can be beneficial for learners as they can identify points of development. [ABSTRACT FROM AUTHOR]