Tools of the Mind: The Vygotskian Approach to Early Childhood Education - Paperbackby Elena Bodrova (Author), Deborah Leong (Author) Now in its third edition, this classic text remains the seminal resource for in depth information about major concepts and principles of the cultural historical theory developed by Lev Vygotsky, his students, and colleagues, as well as three generations of neo Vygotskian scholars in Russia and the West. Featuring two new chapters on brain development and scaffolding in the zone of proximal development,