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…

My goal in this paper is to contribute to the process of bringing practice and theory into active dialogue. Initially, I review some early instructional examples of crosslinguistic pedagogy involving emergent bilingual students. I then focus on more recent examples from the Canadian context that illustrate the emerging role of classroom teachers…

The authors of papers in this special issue are in agreement that if schools are to reverse underachievement among rural and township students in the South African context the instructional space must be expanded to include students' and teachers' multilingual repertoires together with a focus on explicitly demystifying how academic language…

The existence of a global language proficiency factor is discussed. This factor, cognitive/academic language proficiency (CALP), is directly related to IQ and to other aspects of academic achievement. It accounts for the bulk of reliable variance in a wide variety of language learning measures. Three propositions concerning CALP are reviewed. (1)…