Shawn Dale Loewen is Professor in Applied Linguistics at Michigan State University. His research interests include instructed second language acquisition, classroom interaction, and mobile-assisted language learning. His publications include two co-authored books, and the second edition of Introduction to Instructed Second Language Acquisition appeared in 2020. He is the Associate Editor of The Modern Language Journal. He has taught undergraduate introduction to second language learning and teaching courses since 2003 at both the University of Auckland and Michigan State University. Masatoshi Sato is a professor at Universidad Andrés Bello, Chile. His research focus is conducting theoretical and applied research in order to facilitate the dialogue between practitioners and researchers. His research interests include instructed second language acquisition, peer interaction, metacognition, corrective feedback, learner psychology, teacher psychology, race and accents, and the research-practice relationship. In addition to his publications in international journals, he has co-edited a number of volumes. He is the recipient of the 2014 ACTFL/MLJ Paul Pimsleur Award. He is currently the Editor of Language Awareness.

• Preface; 1. Language acquisition; 2. Second language acquisition; 3. Instructed second language acquisition; 4. Input, interaction and output; 5. Grammar; 6. Vocabulary; 7. Pronunciation; 8. Pragmatics; 9. Academic language skills; 10. Cognitive individual differences; 11. Psychological individual differences; 12. Social individual differences; 13. The research–practice dialogue; Glossary; References; Index.

'The authors have succeeded in producing a book that is comprehensive, insightful, and engaging and one that will be a primary resource for teacher educators, language teaching researchers, and student teachers. The reader-friendly organization of each chapter with pre-reading activities, summaries of key theory and research, and post-reading follow-up tasks will provide both novice as well as experienced teachers with an extensive understanding of the disciplinary and pedagogical knowledge that are essential for today's language teaching professionals.' Jack C. Richards, Sydney University, Australia

Shawn Dale Loewen is Professor in Applied Linguistics at Michigan State University. His research interests include instructed second language acquisition, classroom interaction, and mobile-assisted language learning. His publications include two co-authored books, and the second edition of Introduction to Instructed Second Language Acquisition appeared in 2020. He is the Associate Editor of The Modern Language Journal. He has taught undergraduate introduction to second language learning and teaching courses since 2003 at both the University of Auckland and Michigan State University. Masatoshi Sato is a professor at Universidad Andrés Bello, Chile. His research focus is conducting theoretical and applied research in order to facilitate the dialogue between practitioners and researchers. His research interests include instructed second language acquisition, peer interaction, metacognition, corrective feedback, learner psychology, teacher psychology, race and accents, and the research-practice relationship. In addition to his publications in international journals, he has co-edited a number of volumes. He is the recipient of the 2014 ACTFL/MLJ Paul Pimsleur Award. He is currently the Editor of Language Awareness.

• Preface; 1. Language acquisition; 2. Second language acquisition; 3. Instructed second language acquisition; 4. Input, interaction and output; 5. Grammar; 6. Vocabulary; 7. Pronunciation; 8. Pragmatics; 9. Academic language skills; 10. Cognitive individual differences; 11. Psychological individual differences; 12. Social individual differences; 13. The research–practice dialogue; Glossary; References; Index.

'The authors have succeeded in producing a book that is comprehensive, insightful, and engaging and one that will be a primary resource for teacher educators, language teaching researchers, and student teachers. The reader-friendly organization of each chapter with pre-reading activities, summaries of key theory and research, and post-reading follow-up tasks will provide both novice as well as experienced teachers with an extensive understanding of the disciplinary and pedagogical knowledge that are essential for today's language teaching professionals.' Jack C. Richards, Sydney University, Australia

Shawn Dale Loewen is Professor in Applied Linguistics at Michigan State University. His research interests include instructed second language acquisition, classroom interaction, and mobile-assisted language learning. His publications include two co-authored books, and the second edition of Introduction to Instructed Second Language Acquisition appeared in 2020. He is the Associate Editor of The Modern Language Journal. He has taught undergraduate introduction to second language learning and teaching courses since 2003 at both the University of Auckland and Michigan State University. Masatoshi Sato is a professor at Universidad Andrés Bello, Chile. His research focus is conducting theoretical and applied research in order to facilitate the dialogue between practitioners and researchers. His research interests include instructed second language acquisition, peer interaction, metacognition, corrective feedback, learner psychology, teacher psychology, race and accents, and the research-practice relationship. In addition to his publications in international journals, he has co-edited a number of volumes. He is the recipient of the 2014 ACTFL/MLJ Paul Pimsleur Award. He is currently the Editor of Language Awareness.

• Preface; 1. Language acquisition; 2. Second language acquisition; 3. Instructed second language acquisition; 4. Input, interaction and output; 5. Grammar; 6. Vocabulary; 7. Pronunciation; 8. Pragmatics; 9. Academic language skills; 10. Cognitive individual differences; 11. Psychological individual differences; 12. Social individual differences; 13. The research–practice dialogue; Glossary; References; Index.

'The authors have succeeded in producing a book that is comprehensive, insightful, and engaging and one that will be a primary resource for teacher educators, language teaching researchers, and student teachers. The reader-friendly organization of each chapter with pre-reading activities, summaries of key theory and research, and post-reading follow-up tasks will provide both novice as well as experienced teachers with an extensive understanding of the disciplinary and pedagogical knowledge that are essential for today's language teaching professionals.' Jack C. Richards, Sydney University, Australia