No abstract

This paper describes some strategies for the educator seeking to better his/her classroom effectiveness. It was inspired by one of the technical sessions of the 29 th Annual IEEE/ASEE Frontiers in Education Conference in which over a dozen experienced college instructors engaged in a roundtable discussion of ways to improve a classroom environment. In this paper, those ideas are discussed and then supplemented with general advice and specific suggestions from the experience of the authors. The paper concludes with a bibliography of related reference material from a wide variety of educational sources.

No abstract

In this paper we propose numerical measures for evaluating the aesthetic interest of simple patterns. The patterns consist of elements (symbols, pixels, etc) in regular square arrays. The measures depend on two characteristics of the patterns: the number of different types of element, and the number of symmetries in their arrangement. We define two complementary composite measures L and C for the degree of pattern in a design, and compute them here for 2 × 2 and 6 × 6 arrays. The results distinguish simple from high-variation cases. We suspect that the measure L corresponds to the degree that human beings intuitively feel a design to be “interesting”, so this model would aid in quantifying the visual connection of two-dimensional designs with viewers. The other composite measure C based on these numerical properties characterizes the extent of randomness of an array. Combining symbol variety with symmetry calculations allows us to employ hierarchical scaling to count the relative impact of different levels of scale. By identifying substructures we can distinguish between organized patterns and disorganized complexity. The measures described here are related to verbal descriptors derived from work by psychologists on responses to visual environments.

No abstract