Complex systems are an important topic in science education today, but they are usually difficult for secondary-level students to learn. Although graphic simulations have many advantages in teaching complex systems, scaffolding is a critical factor for effective learning. This dissertation study was conducted around two complementary research…

E-learning has grown at a considerable rate, and current projections show no slowdown in the near future. The National Center for Education Statistics estimates that between 2000 and 2008 the share of undergraduates enrolled in at least one online course grew from 8 percent to 20 percent. This study refers to e-learning as all forms of…

Construction requires the knowledge and experience of craftsmen. The knowledge and experience is gained through local coordination and local adaption at points of installation, which classifies the work as complex production. Information generated at these points of installation can be valuable in understanding how and why workers make decisions,…

This video-stimulated interview study of problem-solving activity of a high performing Grade 6 girl who displayed confidence in her mathematical ability, provides a microanalysis of tensions she encountered when her findings using concrete aides did not match her rule application. It highlights her disinclination to explore these inconsistencies.…

Traditional spatial analysis and data mining methods fall short of extracting temporal information from data. This inability makes their use difficult to study changes and the associated mechanisms of many geographic phenomena of interest, for example, land-use. On the other hand, the growing availability of land-change data over multiple time…

Purpose: Traditional evacuation drill is monotonous. Therefore, evacuation drill should be diversified to get more people interested in disaster prevention. Our idea is game-based evacuation drill using real world edutainment (RWE). This paper aims at clarifying how RWE-based evacuation drill is realized. Design/methodology/approach: RWE provides…

This article provides a framework and description of pedagogies that may be used in teacher preparation across a range of settings from college classrooms to P-12 settings to support teacher candidates as they learn to use high-leverage practices (HLPs). These "pedagogies of enactment" must include a continuum of opportunities to use…

The Association for the Advancement of Computing in Education (AACE) is an international, non-profit educational organization. The Association's purpose is to advance the knowledge, theory, and quality of teaching and learning at all levels with information technology. "EdMedia + Innovate Learning" took place in Amsterdam, The…

In this dissertation, I explore unsupervised techniques for the task of automatic short answer grading. I compare a number of knowledge-based and corpus-based measures of text similarity, evaluate the effect of domain and size on the corpus-based measures, and also introduce a novel technique to improve the performance of the system by integrating…

The authors examine the sensitivity of the school choice treatment effects--as defined as the difference between participants and non-participants in open enrollment programs--to differences in i) the underlying student/household preferences of a school districts, and ii) the program participation rates of the district. Data detailed and broad…

This dissertation addresses the use and modeling of spatio-temporal data for the purposes of providing applications for location based services. One of the major issues in dealing with spatio-temporal data for location based services is the availability and sparseness of such data. Other than the hardware costs associated with collecting movement…

In educational research, a randomized controlled trial is the best design to eliminate potential selection bias in a sample to support valid causal inferences, but it is not always possible in educational research because of financial, ethical, and logistical constrains. One alternative solution is use of the propensity score (PS) methods.…

Advanced medical education simulators are broadly used today to train both technical/procedural and team-based skills. While there is convincing evidence of the benefits of training technical skills, this is not the case for team-based skills. Research on medical expertise could drive the creation of a new regime of simulation-based team training.…

For the past decade teaching models have been changing, reflecting the dynamics, complexities, and uncertainties of today's organizations. The traditional and the more current active models of learning have disadvantages. Simulation provides a platform to combine the best aspects of both types of teaching practices. This research explores the…

Three experiments examined perceived absolute distance in a head-mounted display virtual environment (HMD-VE) and a matched real-world environment, as a function of the type and orientation of the distance viewed. In Experiment 1, participants turned and walked, without vision, a distance to match the viewed interval for both egocentric…