The question of how to teach energy has been renewed by recent studies focusing on the learning and teaching progressions for this concept. In this context, one question has been, for the most part, overlooked: how should energy be defined throughout schooling? This paper addresses this question in three steps. We first identify and discuss two…

The QuarkNet Collaboration has forged nontraditional relationships among particle physicists, high school teachers, and their students. QuarkNet centers are located at 50+ universities and labs across the United States and Puerto Rico. We provide professional development for teachers and create opportunities for teachers and students to engage in…

"The Complete Learning Disabilities Resource Guide" (formerly "The Complete Learning Disabilities Directory") has been a comprehensive and sought-after resource for professionals, families and individuals with learning disabilities since 1992. This twenty-first edition is the most comprehensive and current source of resources…