Boredom is a commonly experienced unpleasant emotion in foreign language classrooms and may negatively influence students’ learning status and outcomes. Unfortunately, limited attention has been directed to classroom boredom among students while learning foreign languages. To address this gap, this study adopted a mixed-methods approach to investigate English as a Foreign Language (EFL) classroom boredom experienced by students. We invited 675 Chinese senior high school EFL students to participate in the questionnaire survey about their classroom boredom, and 4 of them voluntarily participated in semi-structured interviews. The results of quantitative data analyses indicate that Chinese senior high school EFL students experienced medium levels of classroom boredom, with male students feeling significantly more bored than females and no difference in boredom in terms of grade and class type. Qualitative data also reveal students’ preferences for challenging language learning activities and learner-centered pedagogy. Our findings shed light on ways of improving EFL learners’ classroom learning experiences and emotional status.

Duolingo has become one of the most widely used gamification apps for learning English, mostly for vocabulary and grammar. However, there is limited research on its effectiveness in enhancing writing skills. This study aimed to investigate the effect of Duolingo on junior high school students' learning English as a Foreign Language (EFL) writing skills, focusing on the overall score and five components: content, organization, vocabulary, language use, and mechanics. The study used a quasi-experimental design, specifically the non-equivalent control group, involving 41 eighth-grade students in experimental and control groups. Both groups were assigned writing tests as a pre-test and a post-test. The experimental group received an intervention using Duolingo outside the classroom for eight weeks as a supplementary tool, while the control group only received regular English classes. The statistical analysis using the independent t-test and ANCOVA revealed a significant improvement in writing skills in the experimental group (p < .05). It also showed an improvement in all writing components, especially content and organization. The partial eta squared value indicated a large effect of Duolingo (η²p = .878). These findings suggest that Duolingo has the potential to serve as a supplementary tool for improving writing skills in language learning.