'Metaphor in Educational Discourse is a superb piece of applied linguistics research that integrates Vygotsky's theory of concepts with current work on metaphor into a coherent framework for investigating how teachers and learners negotiate figurative language in order to promote development in the classroom setting. In what is likely to become the standard for future studies in this area, Lynne Cameron meticulously demonstrates the central role of linguistic metaphors in classroom learning - designed to lead learners to a deeper understanding of complex mathematical and scientific...