The COST action (CA21114) CLILNetLE is a European network of research and innovation. Through it, different experts examine some of the current challenges related to the topic of literacy and disciplinary literacy in the bilingual Education . Specifically, what is related to Education with CLIL (Content and Language Integrated Learning), which consists of teaching content subjects (such as History or Biology) through a second language (such as English). This network is funded by the COST agency (European Cooperation in Science and Technology).

Since its inception in the 1990s, CLIL methodology has become one of the most established approaches in the European bilingual landscape educational . Today it constitutes a part of the general Education , so it is necessary to clarify with empirical evidence the linguistic criteria required in a multilingual learning context, which is less about general foreign language learning and more about disciplinary literacy.

Disciplinary literacy is defined as the "use of reading, reasoning, research, speaking and writing that are needed to learn and form complex knowledge in each academic discipline " (McConachie & Petrosky, 2009). That is, to teach disciplinary literacy is to ask students to "think, speak, read, and write like historians, scientists, or mathematicians," which requires a knowledge of academic language, language specific to different school disciplines, and the language of schooling. 

By connecting researchers from all over Europe, this action aims to develop a shared and impactful diary of research , as well as a dissemination strategy, to support the development of literacy and disciplinary literacy in bi/multilingual contexts. This action integrates for the first time experts from different fields, linguists, educators, experts from different academic disciplines, educational authorities and the organizations of training and development professor .