Among the real challenges of bilingual education is the lack of availability of appropriate activities, materials and resources for CLIL classrooms. is book comprises a collection of helpful teaching activities, materials and resources for CLIL classrooms at Primary and Secondary education levels. ese activities, materials and resources aimed at developing communication skills are mainly intended to be used by educators in CLIL classrooms so as to improve language instruction and to enhance the classroom learning experience. is book is fundamentally designed to provide a source of reference, being particularly helpful for pre-service and in-service CLIL teachers who can find valuable activities and materials for their CLIL lessons. Of course, they need to analyse them and select those most appropriate to be used in their CLIL classrooms.