Transcription is the critical first step in expressing a gene, during which an RNA polymerase (RNAP) synthesizes an RNA copy of one strand of the DNA that encodes a gene. Here we describe a laboratory experiment that uses a single assay to probe two important steps in transcription: (1) RNAP binding to DNA, and (2) the transcriptional activity of…

The demarcation problem as one of the most prominent topics in the philosophy of science deserves a higher profile in science education literature as a part of the discussions about the instruction of the nature of science (NOS) concepts to generate a scientifically literate society. In this qualitative survey research study, the views of the…

Developing students' understanding of and about science is an important educational goal. Learning the nature of science (NOS) has been recognized as a critical component of science literacy, affecting how students (our future citizens) make informed decisions. Textbooks can be useful teaching materials if the content presented aligns with…

Nature of science (NOS) is considered an important component of scientific literacy. Supporting students to develop a comprehensive NOS understanding is one of the most commonly described objectives within science education. Moreover, history of science can arguably provide a good context for NOS teaching and learning; it has been suggested that…

This report includes the analysis of three chemistry textbooks in high schools in Iran for representation of nature of science (NOS). The analysis was framed by an analytical tool developed and validated by Abd-El-Khalick and a team of researchers in a large-scale study on the high school textbooks in the USA. The results indicated that NOS…

The central argument of this article is that abduction as a "mode of inference" is a key element in the nature of scientists' science and should consequently be introduced in school science. Abduction generally understood as generation and selection of hypotheses permits to articulate the classical scientific contexts of discovery and…

This article presents results of research analysing the views on the nature of science (NOS) among primary and secondary teachers working in state schools in two different cities in Colombia. Previous studies have reported that science teachers maintain 'eclectic' epistemological perspectives on science; in this article, we test if such hypothesis…

In this article, we discuss the replication of a forgotten chemical instrument in the context of undergraduate chemistry education. Together with students, we have attempted to replicate an eighteenth century "eudiometrical" procedure. Eudiometry was the practice of measuring the "goodness" of the air by looking at the volume…

This article aims to examine the impact of neoliberal policies on universities, focusing particularly on the concepts of academic capitalism and academic autonomy, and to conduct a comprehensive discussion to understand how scientific knowledge production has been affected by this process. Since the Bologna Process, universities have adopted a…

Science education scholars agree that it is important for teachers to be prepared to teach science as more than facts and information. Part of this preparation is understanding the nature, history, and philosophy of science and its impact on scientific knowledge. However, research has shown that science teachers are often unfamiliar with the ideas…

Over the past few decades, research has been conducted on the nature of science (NOS), which is considered a critical component for achieving scientific literacy. This study aims to explore university science professors' views of NOS using a recent theoretical framework, which is the family resemblance approach (FRA). FRA is a comprehensive…

The application of physico-chemical principles has been routinely used to explain various physiological concepts. The Nernst equation is one example of this, used to predict the potential difference created by the transmembrane ion gradient resulting from uneven ion distribution within cellular compartments and the interstitial space. This…

Teaching special relativity to lower-division students is challenging because results such as time dilation, length contraction, and frame dependence of simultaneity are counterintuitive. The literature is extensive, so only a brief list is given here, with articles divided roughly between discussions of general principles and calculations applied…

Historically, classical thermodynamics was developed during attempts to improve the efficiency of steam engines. Those investigations led to the well-known zeroth, first, and second laws of thermodynamics. Although these laws are presented independently, linkages between the zeroth and second laws have been pointed out in the physics teaching…

In recent years, there have been a number of articles published concerning whether or not potential energy ("PE") as defined in mechanics is invariant under Galilean transformation. This essay addresses that issue in a different, more fundamental and elegant way than has been done thus far. It recognizes that a considerable change in the…