Nuclear science has uses and applications that are relevant and crucial for world peace and sustainable development, so knowledge of its basic concepts and topics should constitute an integral part of civic scientific literacy. We have used two newspaper articles that deal with uses of nuclear science that are directly relevant to life, society,…

Greedy algorithms constitute an apparently simple algorithm design technique, but its learning goals are not simple to achieve.We present a didacticmethod aimed at promoting active learning of greedy algorithms. The method is focused on the concept of selection function, and is based on explicit learning goals. It mainly consists of an…

Assessment instruments developed specifically for chemistry classrooms have increased in number over the past decade. In the design, development, and evaluation of these instruments, the chemical education community has adopted many of the practices and standards used by the greater assessment communities. Methodologies for creating new assessment…

Urban legends are plausible stories--told as truths--that revolve around the complexities and challenges of modern life. Sociologists have not managed to pin down exactly how and why these stories get started, but they are clearly spread by word of mouth and there is usually a grain of truth in them (and sometimes, as it turns out in the case of…

This article argues that research and educational practices relating to gifted students can highly benefit by linking up more closely with the mainstream of research on learning and instruction. The CLIA-model for the design of powerful learning environments that consists of four interconnected components (Competence, Learning, Intervention, and…

Recent research suggests that a major obstacle to evolution understanding is an essentialist view of the biological world. The present study investigated the effects of formal biology instruction on such misconceptions. Participants (N = 291) completed an assessment of their understanding of six aspects of evolution (variation, inheritance,…

The connection between the molecular-level structure of a substance and its macroscopic properties is a fundamental concept in chemistry. Students in college-level general and organic chemistry courses were interviewed to investigate how they used structure-property relationships to predict properties such as melting and boiling points. Although…

Introduction: The purpose of the study presented here was to understand and describe the misconceptions of students with visual impairments about sound and instructional techniques that may help them to develop a scientific understanding. Methods: Semistructured interview-centered pre-and posttests were used to identify the students' conceptual…

The purpose of this paper is to present a comprehensive, accessible and strategic overview of what is currently known about school and system reform in the early twenty-first century. It reflects on the knowledge that has been acquired from research, policy and practice over the past three decades and presents it in a way that provides frameworks…

Patient's nonadherence to treatment is one of the most serious issues for modern medicine. WHO experts in the guideline [6] thoroughly analyze the reasons for poor adherence to long-term therapy and outline a wide range of factors influencing adherence to long-term therapy. At that it is emphasized that none of those factors is decisive. It…

The primary objective of this project was to learn what effect a computer program would have on academic achievement and attitude toward science of college students enrolled in a biology class for non-science majors. It became apparent that the instructor also had an effect on attitudes toward science. The researcher designed a computer program,…

Information on the HIV/AIDS epidemic in Southern Africa is often interpreted through a veil of secrecy and shame and, I argue, with flawed understanding of basic statistics. This research determined the levels of statistical literacy evident in 316 future Mathematical Literacy teachers' explanations of the median in the context of HIV/AIDS…

Molecular visualizations have been widely endorsed by many chemical educators as an efficient way to convey the dynamic and atomic-level details of chemistry events. Research indicates that students who use molecular visualizations are able to incorporate most of the intended features of the animations into their explanations. However, studies…

This article analyzes the perceptions of Spanish health professionals, children with Tourette's Syndrome (TS) and their parents about social, school and family problems related to the disorder. A qualitative research methodology was used involving Focus Groups (FGs) made up of children with TS (× 2 FGs), parents/caregivers of persons with TS (× 2…

In response to the wide-scale proliferation of "the cone of learning"--a fanciful retention chart confounded with Dale's Cone of Experience--the authors make four major claims debunking this fantasy and provide documentary evidence to support these claims. The first claim is that the data in the mythical retention chart do not make…