Once the reasons for habitual observation in the classroom have been established, and the intent to observe has been settled, the practical details of observation must be organized. In this article, O'Shaughnessy gives us a model for the implementation of observation. She thoroughly reviews Montessori's work curves and how they can be used to show the development of the child through four stages of concentration. O'Shaughnessy discusses how these work curves can be used to aid the practice of observation, and she has embedded case studies to clarify her points. She offers practical tools and tips for use in recording observation and points of awareness, including the documentation for the observation of errors in order to understand the obstacles a child is encountering. Constant attention must be given to the point of contact between the child and the environment so that we are ever conscious of our role in facilitating that most important interaction that will allow the child's potential to unfold.