Meaningful growth comes when teachers get to roll up their sleeves and study what’s really going on in classrooms. The Lab Class model helps teachers collaboratively plan, investigate, and develop solutions to a specific problem of practice by observing a host teacher’s classroom through the eyes of students. This book provides observation protocols that encourage teachers to: Plan collaborative inquiry projects by identifying a focus of the inquiry, combing the research literature, and identifying resources needed; Observe and analyze student conversations, actions, and products; Identify patterns and determine next steps for professional learning.