The U.S. defense industry spends billions of dollars each year developing defense systems to keep the nation and allies secure. However, the failure rate of system development is notoriously high. Even when development efforts do succeed, they often do so with cost overruns and compromises in system performance. As a result, large amounts of money…

Teaching introductory statistics using curricula focused on modeling and simulation is becoming increasingly common in introductory statistics courses and touted as a more beneficial approach for fostering students' statistical thinking. Yet, surprisingly little research has been conducted to study the impact of modeling and simulation curricula…

Spatial reasoning is defined as the ability to generate, retain, and manipulate abstract visual images. In chemistry, spatial reasoning skills are typically taught using 2-D paper-based models, 3-D handheld models, and computerized models. These models are designed to aid student learning by integrating information from the macroscopic,…

This paper attempts to quantify the accuracy limit of "nextitem-correct" prediction by using numerical optimization to estimate the student's probability of getting each question correct given a complete sequence of item responses. This optimization is performed without an explicit parameterized model of student behavior, but with the…

Virtual social networks nowadays play a very important role in getting and receiving daily news. Therefore, it is necessary to know the extent and reasons for users to use this tool and compare it with other media. Therefore, it is essential to know the extent and reasons for users to utilize this tool and compare it with other media. This study…

Modernization of the military system and its content has enhanced the value of the foreign language as a subject aimed at the formation of communicative competence of future officers. It mainly concerns a professional language, which is an obligatory part of the cadets' professional training. One of the main tasks of foreign language training of…

The 3D visualization program paves the way for the development of virtual reality. This study produces a 3D visualization program in virtual reality to increase high school students' critical thinking skills and scientific attitude. The Research and Development (R&D) method was based on the ADDIE model - analysis, design, develop, implement,…

This paper presents results from a comparative analysis of two sections of Introduction to International Politics, one of which used a traditional research paper as a supplemental assignment and one that used the Statecraft online simulation. Both sections were taught during the same semester and used common lecture notes, PowerPoint slides, exam…

As BIM (Building information modeling) comprehensive advantages in the field of engineering, it develops rapidly in the international building industry including China. In the face of new technology and new methods of innovation, architecture teaching also needs to adjust. BIM as new design tool is very necessary. But how to perfectly combine BIM…

An important question regards how we use environmental boundaries to anchor spatial representations during navigation. Behavioral and neurophysiological models appear to provide conflicting predictions, and this question has been difficult to answer because of technical challenges with testing navigation in novel, large-scale, realistic spatial…

Students often find astronomy and astrophysics to be most interesting and exciting, but the Universe is difficult to access using only one's eyes or simple equipment available at different educational settings. To open up the Universe and enhance learning astronomy and astrophysics different planetarium software can be used. In this article we…

Since being introduced by Connor and Simberloff in response to Diamond's assembly rules, null model analysis has been a controversial tool in community ecology. Despite being commonly used in the primary literature, null model analysis has not featured prominently in general textbooks. Complexity of approaches along with difficulty in interpreting…

Due to the changing landscape of K-12 education in the United States, particularly issues arising from funding, safety, accessibility, and standardization, the frequency at which teachers utilize traditional field trips has diminished over the last few decades. Thanks to continued advances in communicative technology, however, teachers are able to…

This paper presents a comprehensive review and a specific example implementation of a minimally invasive technique that can be used to make quantitative measurements of a subject's Electro-Dermal Activity (EDA) in educational technology studies. The Q sensor is a low-cost wireless sensor that can be worn on the wrist to measure a subject's…

Recent improvements in three-dimensional (3D) virtual modeling software allows anatomists to generate high-resolution, visually appealing, colored, anatomical 3D models from computed tomography (CT) images. In this study, high-resolution CT images of a cadaver were used to develop clinically relevant anatomic models including facial skull, nasal…