Content and Language Integrated Learning is a framework for curriculum development. Through a C.L.I.L.-oriented curriculum students work with a variety of discourse types and they learn language by using it. School subjects, any topic, theme, or issue of interest to students can qualify as content; this is the reason why there are so many different types and models of C.L.I.L. A C.L.I.L. curriculum allows for the development of Basic Interactional Communication Skills (BICS) in the foreign language as well as the development of Cognitive Academic Language Proficiency (CALP) in students’ native language and in the foreign language(s) they are learning. In addition, students are given the opportunity to acquaint themselves with the culture of the community(-ies) who speak the target language(s). Although the implementation of C.L.I.L.-oriented curricula requires that decisions be made by administrators and politicians, language teachers can still supplement the curricula followed at present with Content and Language Integrating Activities. To illustrate this, we will look at EFL activities based on content borrowed from current Greek Elementary School Math, Science and Geography textbooks.