This study attempts to make inferences about the mechanisms that drive network change over time. It adopts simulation investigation for empirical network analysis to examine the patterns and evolution of relationships formed in the context of a massive open online course (MOOC) discussion forum. Four network effects--"homophily,"…

Describes a Chinese lesson during which the techniques for playing the yang-ch'in are taught. Discusses why Chinese teachers use rote instruction in music lessons and why they use poetry and nonmusical scenes as indicators of music's expressiveness. Compares this method of utilizing imitation with U.S. teaching techniques and relates it to…