Electrophoresis is integral to analytical and biochemistry experiences in undergraduate education; however, fundamental principles of the method are often taught in upper-level laboratories through hands-on experiences. A laboratory activity is reported that teaches the concepts of electrophoretic mobility and electroosmotic flow. A single…

This paper presents empirical evidence from research carried out in New Zealand by a research-practice partnership (RPP) that included school teachers, teacher professional learning providers, and researchers in science education, technology education, and information systems. The RPP worked together from 2018-2023 to investigate the affordances…

At the end of the 18th-century, Charles Coulomb developed an apparatus to study the force between two electrified beads which allowed him to obtain his famous Coulomb's law. Today, as one of the most fundamental outcomes in classical electromagnetism, his result is revisited in most high school physics courses, where students are asked to…

This paper addresses two methodological issues related to the assessment of teachers' views of science. The first concerns the distinction between the "nature of science" (NOS) and the nature of "scientific inquiry" (SI): should the points related to NOS and those related to SI be analyzed independently? The second concerns the…

Scientific evidence-based reasoning has been recognized as a form of reasoning that characterizes scientific thinking. This study questioned what scientific evidence means in the various types of scientific activities; that is, this study explored the nature of scientific evidence (NOSE). To do this, previous studies were examined to understand…

Background: There is a growing view that 'Big Ideas of science education' are useful for teaching science but there is not much knowledge of how teachers work with them. Purpose: This study explores the conceptualisation and practice of the use of Big Ideas of science education by primary and secondary teachers in Chile. Sample: A total of 63…

It is generally accepted that a robust science education includes knowledge of science, as well as knowledge "about" science, or, in other words, an understanding of the "Nature of Science." However, debates around what Nature of Science is and how to measure it are far from settled, and this compromises our ability to support…

Aragón, Acevedo-Díaz and García-Carmona study prospective biology teachers' understanding of the Nature of Science (NOS). In my comment, I would first like to step back and ask "what it is to understand something", i.e. the sciences. I will turn to a quasi-Wittgensteinian epistemological tradition and suggest that, contrary to our habit…

The stereotypical situation of a snowball picking up both mass and speed as it rolls without slipping down a hill provides an opportunity to explore the general form of both translational and rotational versions of Newton's second law through multivariable differential equations. With a few reasonable assumptions, it can be shown that the snowball…

Although nearly everyone is familiar with colors from an early age and the fundamentals of color mixing are taught at various abstraction levels throughout kindergarten to high school, we repeatedly observe that our student teachers in physics have problems in explaining the subject. Therefore, we propose an experimental setup that focuses on the…

Over the past several years, we have contributed articles to "TPT" that focus on a forensics-style reexamination of significant historical events. The purpose of these articles is to afford students the opportunity to apply basic principles of physics to unsolved mysteries and potentially settle the historical debate. We assembled the…

Over the course of a two-year curriculum field test study that implemented a curriculum-based professional learning framework, we investigated the factors that influenced teachers' willingness and ability to implement NGSS-aligned, phenomenon-based storylines for teaching the nature of science, evolution, and climate change. Through qualitative…

Most springs do not simply obey Hooke's law because they are constructed to have an initial tension, which must be overcome before normal elongation occurs. This property, well known to engineers, is universally neglected in elementary physics courses. In particular, the standard simple harmonic motion experiment omits any discussion of this…

We have argued that science in general, and scientific inquiry in particular, is a human activity and that current models to describe science (either as Scientific Method or as a Body of Knowledge) tend to underestimate the significance of human beings in the phenomenon. Our earlier paper (Bevins & Price, 2016) suggests a model to correct this…

The importance of learning "chemical ways of thinking" is widely recognized. Various frameworks have been developed to address the essence of chemistry and chemical thinking. However, very few studies have focused on how chemical ways of thinking can be defined. To elaborate chemical ways of thinking, this paper draws on scientific…