Since Dimensions of Learning was published, it has been a resource for thousands of educators. The model, along with its accompanying materials, has been used in many different ways, including as ¿ a resource for instructional strategies, ¿ a framework for organizing school improvement and staff development efforts, ¿ a structure for planning curriculum, instruction, and assessment; and ¿ a focus for systemic reform. Educators consistently say that the most powerful reason for using Dimensions of Learning is that no matter what goal they are pursuing, the model helps them maintain a focus on learning. Just as Dimensions of Learning has provided much to educators, much also has been given back. Users of the model have been diligent in their efforts to understand the model and to make it a positive force in the classroom. As they have worked, they have provided extensive feedback to the trainers and developers, not only about their successes but also about how they have adapted the materials. This feedback, and the fact that we continue to learn about learning, has motivated the development of the second edition of the Dimensions of Learning materials.