This chapter about designing dynamic bilingualism-oriented courses for in-service EFL teachers aims to provide pedagogical suggestions for in-service teachers working in EFL contexts. In this chapter, initially, we elaborate on the points to consider in the design of activities and pedagogical tools that will encourage in-service teachers to promote and cherish bilingual education. Therefore, this Chapter introduces an already implemented training program for in-service EFL teachers, its philosophy and approach, as well as offering guidance on how to structure training programs with a focus on bilingual education. Also provided are guidelines for training, sample activities and models for the implementation process. While learning how dynamic bilingualism-oriented pedagogical considerations may feed into in-service teacher training, the reader will also have the opportunity to expand their teaching repertoire in ways supportive of bilingual education in EFL contexts.