Philosophy in Education: Questioning and Dialog in K-12 Classrooms is a comprehensive textbook designed for philosophers, philosophy students, K-12 classroom teachers, administrators, educators, policymakers, and all practitioners involved in pre-college education. This edition explores the expansion of philosophical inquiry into elementary, middle school, and high school settings, emphasizing the educational value of pre-college philosophy and its relevance to contemporary issues such as education reform, child development, and addressing prejudice and privilege in classrooms. The book delves into key areas including the philosophies that inform this practice, strategies for developing classroom communities of philosophical inquiry, fostering critical reasoning and independent thinking among students, and cultivating philosophical sensitivity and positive identity formation during childhood. Additionally, it discusses methods to recognize and mitigate social inequalities within educational environments, as well as the connection between introducing philosophy in schools and broader education reform efforts.