This book explores the use of Exploratory Practice (EP) as a tool for Continuing Professional Development (CPD) by language teachers, and responds to the increasing demand for teachers to engage in research. It presents the results of a unique two-year longitudinal study that critically examines the implementation of EP by teachers of English and modern foreign languages. Through these case studies, the authors provide a critical account of EP as a form of practitioner research that bridges the divide between theory and practice. It emphasizes the centrality of teacher and learner learning in language education curriculum improvement, and gives a voice to teachers' perspectives on using EP in the classroom. This book will be of interest to language education professionals and scholars working in Applied Linguistics and Language Education.