The transformations of the 21st century bring with them fundamental changes in the way we understand second language acquisition processes. Social, cultural, and economic shifts are creating a reality in which intercultural and multilingual interactions are becoming central to our daily lives. In this reality, researchers and educators who teach languages are called upon to be attentive and open to change, and to adapt instruction to evolving contexts, to prepare learners to navigate a complex and unpredictable world. Accordingly, there is a growing need to adopt an updated perspective on second language acquisition, one that is suited to a dynamic reality and reflects the broad cultural and identity-related contexts within which language learning takes place.

Many education systems are now aware of the need for reforms and the renewal of content and teaching methods, so that these may incorporate, as an inherent part of the learning process, the new skills that students require in the 21st century: communication skills, creativity, critical thinking, problem solving, and collaboration.