This study explores the dynamic, interactive nature of digital drawings and writing in a knowledge building community in which students used a multimedia online environment--Knowledge Forum--to represent and advance ideas in the field of optics. The research employs a mixed-methods case study to collect and analyze multimedia notes created by 22…

Contribution: Prior studies on tangible versus graphical user interfaces have reported controversial findings concerning children's preferences. This paper shows that their preference profiles in the domain of introductory programming are associated with gender and age for both interfaces. Background: The relevant literature mainly consists of…

Investigated elementary school students' responses to two user-computer interfaces while the students solved basic arithmetic problems. Interfaces involved users' direct manipulation of images or interpretation of symbols. Data indicated that students were more comfortable and solved problems more quickly when manipulating images than when…