Over the past 40 years, Jim Cummins has proposed a number of highly influential theoretical concepts, including the threshold and interdependence hypotheses and the distinction between conversational fluency and academic language proficiency. In this book, he provides a personal account of how these ideas developed and he examines the credibility…

All assessment policies and practices are based on monolingual constructs whereby test-takers are expected to demonstrate their language proficiency in one language at a time. Thus, the construct underlying these assessment approaches and/or scales (e.g., the CEFR) is of language as a closed and finite system that does not enable other languages…