Applying Flipgrid-Based Portfolio to Improve Vietnamese EFL High School Students’ Speaking Scores

During the covid-19 pandemic, application of electronic teaching tools has emerged more crucial than ever. This research aimed at investigating impacts Flipgrid-based portfolio on EFL high school students’ speaking scores and their attitude towards use this e-portfolio. The study involved 86 students in Vietnam, which were divided two groups, a control an experimental one. data collected from pre-test, post-test, questionnaire, interviews. results showed that improved significantly performances terms pronunciation fluency. Moreover, all participants group expressed positive online platform despite some mentioned shortcoming. On basis findings, many pedagogical recommendations suggested with hope pushing effective e-portfolio English language learning contexts. Keywords: portfolio; e-portfolio; scores; students;