This study is designed in attempt to explore Thai students and teachers’ perceptions of English learning and teaching through the communicative language teaching approach (CLT) in Loei Primary Educational Service Area Office 2, and to compare students and teachers’ perceptions of English learning and teaching through the communicative language teaching approach. Both quantitative and qualitative methods were used in the study. The researcher used a quantitative questionnaire survey to explore 295 students and 20 teachers’ perceptions of ...