Thin-layer chromatography, which involves the movement of dyes along a silica-coated plate, is used to observe the progress of chemical reactions and to separate mixtures. We took advantage of this phenomenon to devise a method for generating patterns in the shape of numbers with dots (dot matrix). We prepared the azo dyes necessary for generating…

Visual comparisons are pervasive in science, technology, engineering, and mathematics (STEM) instruction and practice. In previous work, adults' visual comparisons of simple stimuli were faster and more accurate when the layout of a display facilitated alignment of corresponding elements--the "spatial alignment principle" (Matlen et al.,…

The purpose of this quantitative study was to examine the preferences and practices of students enrolled in online graduate programs regarding instructional video or visual tools used by instructors. Graduate students enrolled in online courses were surveyed to determine their perceptions of the best and worst instructional video or visual tools…

This article discusses visual techniques for detecting test items that would be optimal to be selected to the final compilation on the one hand and, on the other hand, to out-select those items that would lower the quality of the compilation. Some classic visual tools are discussed, first, in a practical manner in diagnosing the logical,…

The shift to online education has dealt several important pedagogical lessons in a very short time frame, none more so than approaches to assessments. This experience, coupled to improved access to education, will likely see online assessments remain as a major component of modern mainstream education. The powerful technologies that facilitate the…

Visuospatial representations of numbers and their relationships are widely used in mathematics education. These include drawn images, models constructed with concrete manipulatives, enactive/embodied forms, computer graphics, and more. This paper addresses the analytical limitations and ethical implications of methodologies that use broad…

In one of the Faraday's experiments an electric current is induced in a conducting loop when a magnet in front of it moves towards or away from the loop. While the direction of circulation of the electric current in the loop has only two options, it depends on three experimental conditions that generate eight cases. Even though the Faraday law or…

Easy access to the internet allows adolescents to share humor, such as memes, via social media. This quasi-experimental study investigated whether there was a difference in the number of memes comprehended on an assessment test among adolescents who were typically developing, adolescents who were deaf or hard of hearing, and adolescents with…

The aim of this study is to illustrate how to enrich resource rooms with specialized instructional materials for the concepts of "transparent," "semi-transparent," and "non-transparent." Given the special situations of students with learning disabilities, the specialized instructional materials use their own avatars…

This paper shares a hands-on activity that introduces Feynman diagrams and the accompanying idea of using pictorial representations to describe the behavior of subatomic particles--specifically, for electrons and photons--in place of mathematical expressions. Built collaboratively by scientists and artists, it exemplifies a triumph of lateral…

Assistive technologies can in many ways facilitate the normal day-to-day lives of the disabled. As part of the ongoing research on assistive technologies at UTAS, Oman, that deals with augmenting and finding multimodal aspects of applications for the disabled, this paper aspires to investigate the role of deep learning in the field of image…

Understanding data structures is fundamental for mastering algorithms. In order to solve problems and tasks, students must be able to choose the most appropriate data structure in which the data is stored and that helps in the process of the solution. Of course, there is no single correct solution, but in many cases, it is an important step to…

The paper draws upon photography as an active intervention into compromised environments and uses it to discover and develop new perspectives on past and future histories of education after COVID-19. These perspectives become particularly clear when seen against the backdrop of recent discussions on planetary responsibility and shared ecologies.…

In this theoretical review, evidence for the link between spoken and written word knowledge is summarised, highlighting the specific hypotheses posed in this field and the extent to which they are informative regarding causation. A brief overview of major theories of orthographic learning draws attention to how each characterises the role of oral…

Health inequality continues to be a persistent and pernicious problem throughout much of the United States. Utilizing publicly available data from the Centers for Disease Control and Prevention (CDC), the author details how undergraduate public health and health administration students analyzed health inequities at the census tract level in South…