Recent research in collaborative learning has indicated that peer assessment has a positive influence on students' learning performance and learning process. This study investigates how the different subgroups of two roles (assessors and assessees) in peer assessment contribute to students' perceptions of science learning in mobile…

In the past decade, reform efforts in science education have increasingly attended to engaging students in scientific practices such as scientific modeling. Engaging students in scientific modeling can help them develop their epistemologies by allowing them to attend to the roles of mechanism and empirical evidence when constructing and revising…

Betty's Brain is a computer-based learning environment that capitalizes on the social aspects of learning. In Betty's Brain, students instruct a character called a Teachable Agent (TA) which can reason based on how it is taught. Two studies demonstrate the "protege effect": students make greater effort to learn for their TAs than they do…