The NASA public archives present a vast resource of authentic satellite data that research astronomers have tapped into for decades. Recently, the same data analysis tools used by professional astronomers have been adapted into a browser-based interface called JS9 for easy use by any interested student. Tutorials and classroom-ready activities…

Collaboration is a complex, multidimensional process; however, details of how multimodal features intersect and mediate group interactions have not been fully unpacked. Characterizing and analyzing the temporal patterns based on multimodal features is a challenging yet important work to advance our understanding of computer-supported collaborative…

The expansion of cognitive load theory to include evolutionary perspectives posits that biologically primary knowledge might support the acquisition of biologically secondary knowledge, which needs explicit instruction for novices to construct. Pointing and tracing actions with the index finger may be forms of biologically primary knowledge that…

The purpose of this study was to investigate not only the effectiveness of dynamic versus static visualizations on learning star motions but also the influence of students' spatial abilities with these two types of visualizations on their learning. We assigned 155 fifth-grade students to either a dynamic or a static condition. We used a science…