The purpose of the study is to perform a less-dimensional thorough visualization process for the purpose of determining the images of the students on the concept of angle. The Ward clustering analysis combined with Self-Organizing Neural Network Map (SOM) has been used for the dimension process. The Conceptual Understanding Tool, which consisted…

Presents concepts from von Wodtke's book, "Mind over Media," to suggest ways to teach thinking skills important for the electronic information age. Topics covered include how to use media interactively, navigating information environments, developing cognitive maps of media space, visualization, creative thinking, and collaboration. (KRN)

Forty blind children and adolescents had to learn two unknown environments and then externalize the spatial representation via two methods--building a scale model and verbally estimating distances. High correlations were found between the two methods and between those methods and two systems of measuring mobility. (Author/JDD)