Through the construction of arguments, students are invited to make sense of the concept of a species and its connection to both extinction and local biomes. Scientific argumentation is the process by which scientists engage in discourse aimed at developing common knowledge about the natural world (Driver et al. 1994). This article describes a 5E…

As a research and technical assistance organization, CNA Education would be the last to deny the importance of good data and the first to applaud efforts to improve the quality and scope of the data available. Solid data are critical to CNA's mission to further general understanding of the efficacy of specific education reform initiatives and to…

Federal education policy in recent years has encouraged state and local education agencies to embrace data use and analysis in decision-making, ranging from policy development and implementation to performance evaluation. The capacity of these agencies to make effective and methodologically sound use of collected data for these purposes remains an…