Teaching and learning about geospatial aspects of energy resource issues requires that science teachers apply effective science pedagogical approaches to implement geospatial technologies into classroom instruction. To address this need, we designed educative curriculum materials as an integral part of a comprehensive middle school energy resources science curriculum. We examined teachers' perceived impact of the curriculum materials to support their pedagogical content knowledge related to teaching science with geospatial technologies. Results indicated that the educative curriculum materials supported science teachers' professional growth related to their geospatial science pedagogical content knowledge during the curriculum enactment. The role of educative curriculum materials in science curriculum reform efforts is discussed. (Contains 5 tables.)