This case study compares the teaching strategies employed by a novice and an expert instructor of two beginning children's group-piano classes. In the United States, there is a century-long tradition of teaching piano to children in groups, and group teaching is championed in pedagogy texts and at professional educator conferences throughout…

This research illustrates how varying enactments of an engineering-design-based science curriculum shaped the development of students' domain-specific scientific ideas and practices. In this comparative case study rooted in the analytical perspectives of activity theory and learning environments, student and teacher participants in three…