Background: Research into digital practices and cultures repeatedly calls attention to the complexity of communication spaces and meaning-making practices. With the blurring of boundaries between online and offline, these entangled practices involve the interweaving of human, material, semiotic, and discursive practices. Purpose: This introductory…

Intercultural simulations are instructional activities that engage and challenge participants with experiences integral to encounters between people of more than one cultural group. Simulations designed specifically to support intercultural encounters have been in use since the 1970s. This article examines the conceptual bases for intercultural…

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…

In this paper, I review both mathematics education and CSCL literature and discuss how we can better take advantage of CSCL tools for developing mathematical proof skills. I introduce a model of proof in school mathematics that incorporates both empirical and deductive ways of knowing. I argue that two major forces have given rise to this…