Representation plays an important role in helping students understand chemistry learning. This is due to the many chemical concepts that require visualization. Representation is something that still needs to be studied. So this study aims to see the development of representation research in chemistry education. The articles used in this study are…

In this study, first the level of interconnectedness of the key concepts concerning the topic of physical and chemical changes in pre-service chemistry teachers' (PSCTs') semantic memories was explored. Second, the group cognitive structures of the PSCTs that contain associations between these key concepts and the response concepts that appeared…

In this paper, a self-created analogy is presented based on comparing the process of osmosis with a situation recreated in a train carriage. It was implemented with upper-secondary education students at a secondary school in Chiclana de la Frontera (Cádiz, Spain). To assess the progression of the students' models on osmosis, their activities…

This laboratory experiment aims to provide undergraduate students with research experience in water treatment by membrane separation. This experiment includes fabrication and characterization, as well as water treatment applications of the interfacially polymerized polyester nanofiltration membranes. Through participating in this experimental…

Instruction in quantum mechanics is becoming increasingly important as the field is not only a key part of modern physics research but is also important for emerging technologies. However, many students regard quantum mechanics as a particularly challenging subject, in part because it is considered very mathematical and abstract. One potential way…

In this article we analyze the classic Hodgkin and Keynes 1955 paper describing investigations of the independence principle, with the expectation that there is much students and educators can learn from such exercises, most notably how the authors applied their diverse skill set to tackling the numerous obstacles that the study presented. The…

When engineering students are unable to evaluate the validity of their solutions, they are unprepared to solve complex, real-world engineering problems that require decomposition or knowledge transfer. A proper framework is key to successful implementation and can encourage more institutions to adopt problem-solving engineering labs. This paper…

This study explores science teachers' questions encouraging students to see and speak about natural phenomena in novel ways. In particular, the teachers' challenging questions that may be instrumental in persuading students to see and talk about everyday events differently were qualitatively examined. The participants were 22 science teachers.…

In physics education, a number of studies have developed assessments of teachers' knowledge of student understanding (KSU) of specific physics concepts with modified versions of existing concept inventories, in which teachers were asked to predict the popular incorrect answers from students. The results provide useful but indirect information to…

Vector fields are a highly abstract physical concept that is often taught using visualizations. Although vector representations are particularly suitable for visualizing quantitative data, they are often confusing, especially when describing real fields such as magnetic and electric fields, as the vector arrows can overlap. The present study…

As detection and subsequent remediation of misconceptions developed within high-school organic chemistry courses in regard to various classes of organic compounds are a prerequisite for meaningful learning of more advanced organic chemistry content, this study sought to identify high-school students' misconceptions about alcohols and carbonyl…

As an introduction to quadrupolar effects in NMR spectroscopy, students use low field ([superscript 1]H, 60 MHz), benchtop [superscript 13]C NMR spectroscopy to contrast the spin-spin coupling behavior of [superscript 13]C to the dipolar [superscript 1]H and quadrupolar [superscript 2]D in familiar solvents C(H/D)Cl[subscript 3], C(H/D)[subscript…

This qualitative study describes a novel intervention designed to build science identity in first-year civil engineering students. Science identity is associated with resilience and perseverance in STEM fields, yet practical teaching activities that support science identity are lacking in university classrooms. To address this need, we created a…

Identifying a student's mental model is important for understanding scientific concepts. Dispersion and polarization are the sub concept of physics that studied in high school on light waves concept. This study aimed to develop dispersion and polarization conceptual inventory (DIPOLCI) to identify students' model mental using Rasch analysis. The…

When educators started incorporating the letter A into the STEM acronym to form STEAM some science educators had reservations. Seen from a western, rationalistic way of knowing (Colucci-Gray et al. 2017, 23) the STEM community had detractors regarding the idea of integrating art into science. Hence, scientific language is often thought of as being…