We present an experiment designed to hone the decision-making skills of (undergraduate) chemistry students by using aqueous crossed aldol reactions. Here, we present two simple crossed aldol reactions based on inexpensive and readily available materials: The condensation of vanillin and cinnamaldehyde with acetone. The procedure uses the variation…

MEMs gyros, such as those in smartphones allow the angular velocity of pendulums to be precisely measured at large angles, and phase plots of the angular acceleration versus the angular displacement confirm that [double dot][phi] = -[omega][superscript 2][subscript o] sin[phi] even for the non-sinusoidal motion at amplitude [phi][subscript o]…

Learning Assistants (LAs) help students develop a deeper understanding of content and are particularly effective during active learning instruction. A foundational pillar of the LA model is the LA pedagogy course, which teaches LAs about evidence-based instruction and about how students learn (Otero et al., 2010). From LA survey responses, this…

Light is used ubiquitously across science and engineering to explore, characterise, understand matter, and catalyse processes. Relative to its utility in science and engineering, very little research has been conducted on how students develop an understanding of light-matter interactions, especially at the quantum level, which is necessary to…

The present study aimed to investigate factors predicting inquiry-based teaching in science across One Belt One Road countries and regions (OBOR economies). Teacher-level (N = 8,603) and school-level (N = 1,385) data were drawn from the Program for International Student Assessment (PISA) 2015. Hierarchical linear modeling was adopted for data…

An interdisciplinary approach to science education through history of art is proposed. The approach is innovative, as the artworks complement the history, philosophy and sociology of science contents to increase students' interest and motivation. The approach integrates humanities and science education through history of art, which requests…

Critical analysis is universally advocated as a key goal of science teaching. In that context, the article explores the responses of beginning teachers (BTs) to explanations used in science education. Specifically, the study asks how BTs can be helped to ground their pedagogical choices in a critical analysis of explanations introduced during…

'It is the belt!' This is how middle school teachers in a science teaching professional development program rationalized why they believe Orion is the most recognizable of all constellations in the night sky. It was from this foundation that we chose Orion to be the focus of a four-phase ethnoastronomy-based project reported here. Ethnoastronomy,…

The use of the flipped classroom approach in higher education STEM courses has rapidly increased over the past decade, and it appears this type of learning environment will play an important role in improving student success and retention in undergraduate chemistry "gatekeeper" courses. Many adopters of the flipped classroom structure…

The Computer has occupied a comprehensive coverage, especially in education scopes, including in learning-teaching processes, testing, and evaluating. This research aimed to develop computerized adaptive testing (CAT) to measure physics higher-order thinking skills (HOTS), namely PhysTHOTS-CAT. The Research Development used the 4-D developmental…

To prepare preservice secondary science teachers to teach English learners (ELs), teacher education programs must provide sustained coursework and experiences in principles and strategies found effective in supporting ELs' learning of science. In the context of a teacher education program recognized for its attention to ELs, we investigated seven…

Discipline-based educational research (DBER) has shown that three instructional techniques--Supplemental Instruction (SI), Process-Oriented Guided Inquiry Learning (POGIL), and Peer-Led Team Learning (PLTL)--can be effective ways of improving student performance in chemistry courses at the K-12 or college/university levels. The goal of this paper…

The topic of electric and magnetic fields is fundamental to the physics curriculum in both high school and college. The applied aspect of this topic has triggered the rapid development of modern technology in this era. This paper reported a remote data acquisition system developed for experiments with magnetic fields by coils to support…

The impression that many preservice chemistry teachers demonstrate issues in the application of their pedagogical content knowledge in teaching practice, especially in the area of fundamental chemistry topics, served as motivation for changes to the Chemistry Education 2 course curriculum. In order to stimulate pedagogical content knowledge, the…

In the socioscientific issues (SSI) classroom, students need to cross the border between the subcultures of science (i.e., school science vs. everyday science). Traditional school contexts tend to present science as positivistic knowledge and unshakable truth unaffected by sociocultural factors. In contrast, everyday science, including SSI, is…