Oral communications skills are essential for living, working and learning. Studies have shown that there is still room for helping students in Taiwan to acquire oral communication skills. One possible way is through the student-centered approach. The aim of the current study was to develop and evaluate a flipped curriculum for enhancing the oral communication skills of the elementary students in Taiwan. Fourteen grade 3 students participated in this study. Both qualitative and quantitative methods were adopted to analyze the data collected. The results demonstrated that the students' performance in the flipped classroom were better than that in the traditional classroom. However, according to the qualitative and quantitative data, more long-term studies are needed to explore how the flipped classroom may affect the elementary students' higher-level language skills. Finally, although this study is on first language learning, the evaluation scale of oral communications skills and the design of the flipped curriculum can be also used for designing activities in teaching Chinese as a second language.