This document discusses the elements of inquiry-based learning. It begins by asking what the critical elements of inquiry are and provides an overview of different types of inquiry approaches like project-based learning, guided inquiry, and open inquiry. It then discusses elements that must be considered when planning inquiry-based lessons like tapping prior knowledge, generating intriguing questions, developing an investigation plan, analyzing resources, drawing conclusions, and reflecting. The document also discusses what inquiry looks like in different subject areas and emphasizes building a learning community focused on evidence, viewpoints, connections, imagination, and relevance.