In this paper, a new automatic contour tracking system, EdgeTrak, for the ultrasound image sequences of human tongue is presented. The images are produced by a head and transducer support system (HATS). The noise and unrelated high-contrast edges in ultrasound images make it very difficult to automatically detect the correct tongue surfaces. In…

When students take General Chemistry there are substantially fewer molecular images than they will encounter in Organic Chemistry. The molecular images Organic Chemistry students see in their textbooks are ones that use dashes and wedges to represent 2D and semi 3D views, ball and spoke, ball and wire, and structural formulas, to name just a few.…

This study presents the results of a multi-year mixed-methods study of students' performance (n = 94) and experiences (n = 28) with electromagnetics in an elective Electrical and Computer Engineering Technology RF communications course. Data sources used in this study include academic transcripts, course exams, interviews, a learning styles…

Until recently, qualitative research has made limited use of visual sources, particularly visual texts (drawing, painting or photographs), but also including multimodal data (video and web-based) and visual data (tables, graphs, charts, etc.). Thus, discussions of ethics and evidence in this area have lagged behind those related to textual data,…

This essay presents a case study of the modes used in training employees at a munitions plant in Ohio between 1940 and 1945. Theories of multimodal discourse and learning advanced by The New London Group (1996), Gunther Kress and Theo Van Leeuwen (2001) and Richard Mayer (2001) inform this analysis. With an unskilled labor force and many workers…

When visualization tools utilized in computer programming education have been evaluated empirically, the results have remained controversial. To address this problem, we have developed a model of short-term effects of program animation, and used it in a series of experiments. In the current experiment, we varied visual representation of an…

The International Asteroid Search Campaign (IASC, fondly nicknamed "Isaac") is an Internet-based program for high schools and colleges. Within hours of acquisition, astronomical CCD images are made available via the Internet to participating schools around the world. Under the guidance of their teachers, students analyze the images with free…

This study examined whether the design of textbook material affects comprehension and memory of textbook material under certain cognitive conditions for proficient and remedial readers. Using quantitative and qualitative research methods, format was found to significantly affect comprehension and memory. Proficient Male scored significantly…

Students struggling with mathematics may benefit from early interventions aimed at improving their mathematics ability and ultimately preventing subsequent failure. This guide provides eight specific recommendations intended to help teachers, principals, and school administrators use Response to Intervention (RtI) to identify students who need…

This paper reports on the approaches undertaken to support the development of teachers' uses of interactive whiteboards in the Primary Schools Whiteboard Expansion project. Mixed methods were used to identify practices and staff perceptions about the extent and impact of professional development through surveys (initially from 528 schools),…

Explicit instruction in thinking skills must be a priority goal of all teachers. In this book, the author presents a framework of the five Rs: Relevancy, Richness, Relatedness, Rigor, and Recursiveness. The framework serves to illuminate instruction in critical and creative thinking skills for K-12 teachers across content areas. Each chapter…

PowerPoint arouses many strong feelings, but the debate over the popular program typically pits advocates against detractors: fewer people discuss "how" PowerPoint should best be used in the classroom. Howard Strauss of Princeton University has observed that "a lot of the stuff that people try to do in smart classrooms is done badly," but…

In this paper we present a framework for analysing when and how students engage in a specific form of interactive knowledge elaboration in CSCL environments: broadening and deepening understanding of a space of debate. The framework is termed "Rainbow," as it comprises seven principal analytical categories, to each of which a colour is assigned,…

Undergraduates presented original research in classroom poster sessions open to students, faculty, and friends. We assessed the reaction of the students to the experience and their reported change in their interest in presenting at conferences. Students enjoyed the poster session experience and indicated they preferred this method over other…

Definitions of literacy that focus solely on reading words provide too narrow a framework for many students with severe disabilities. Obtaining information from the environment may be accomplished in a variety of modes, such as visual literacy, which is the ability to discern meaning conveyed through images. A component of visual literacy is…