Learning to teach is a culturally situated activity. As teachers learn, it is important to understand not only what teachers learn, but how they learn. This article describes a qualitative case study of a subset of four teachers' learning during a professional development surrounding a plate tectonics curriculum. Using qualitative methods, this…

This paper reports on a design-based implementation study of the use of a diagnostic classroom assessment tool framed on learning trajectories (LTs) for middle grades mathematics, where teachers and students are provided immediate data on students' progress along LTs. The study answers the question: "How can one characterize the challenges…

The design and implementation of hybrid, technology-enhanced learning environments is a sophisticated process, especially when incorporating relevant sociocultural factors to support culturally and linguistically diverse students' learning. In this paper, I review and provide a description of an iterative design process for a mobile-assisted…