As science grows in complexity, science teachers face an increasing challenge of helping students interpret models that represent complex science systems. Little is known about how teachers select and use models when planning lessons. This mixed methods study investigated the pedagogical approaches and visual models used by elementary in-service…

The purpose of this study was to investigate the relationship between a collaborative design process for selecting instructional graphics and online learner perceptions of graphic appropriateness. At the end of their online graduate course, 9 students ranked how appropriately each of 25 graphics represented 1 of 8 human performance technology…

Electronic aids can be used to augment the lecturing process and improve students' learning experience when teaching large groups of students at the university level. They can, among other things, stimulate student interest in the material, display the unfolding structure of a lecture, provide students ready access to the instructor's own lecture…

Visual instruction--the use of interesting or clarifying objective illustrations such as specimens, maps, pictures, and the like--are as old as formal instruction or what is now thought of as organized education. In recent years, however, new visual mediums or aids have been introduced into instructional practices, many of which have a special…