One goal of the US Department of Education-funded Project Insights was to see if the use of Problem-based Learning (PBL) would encourage students to reveal previously unseen academic potential. Two PBL units were taught to 271 sixth grade students in 13 classrooms. Afterwards, teachers identified students who demonstrated previously unseen…

The purpose of this study is to compare the efficacy of three different approaches to professional development in Earth science education: preparing teachers to "adopt" expert-"design" curricula; preparing teachers to use a principled approach to design curricula; and preparing teachers to use a principled approach to "adapt" curricula. The claims…