Strategies of Professional Development for the EFL Teachers in Elementary Schools

How to effectively evaluate and facilitate teachers' professional development has become a major concern. In this paper, we make a detailed analysis with the fuzzy statistics and soft computing methods for the fuzzy questionnaires. Using the membership function and fuzzy statistical analysis, we find the data may contribute to our understanding of the expressions under human cognition which is not easily shown. Depended on the findings from the current status and needs of English teachers' professional development, we provide suggestions for the enhancement of in-service English teachers and teacher education in an EFL context.