The Disciplinary Core Ideas were built on the notion of learning as a developmental progression and that science concepts can be broken down to start the knowledge building as early as Kindergarten! Experience how the learning progression of the DCIs Energy and Structure and Property of Matter, occurs from grade band to grade band giving students the opportunity to learn more complex materials leading to a deeper understanding of the DCI. The core ideas provide an organizational structure for acquisition of new knowledge as students move through the grade levels.