I describe an effort to enhance student engagement and classroom inclusion in a sophomore Introduction to Modern Physics class, through the use of assigned student groups, cold-calling, and exposure to the work of female physicists of varied backgrounds. These approaches took minimal effort, appeared to have positive impacts, and had no…

In contrast to the determinist and non-discrete structure of classical physical concepts, the probabilistic and discrete/quantised structure of quantum physics embeds certain difficulties in deeper understanding and teaching activities. In this study, in order to understand and to teach the concept of quantization more effectively, a clear analogy…

This paper analyzes the implementation of socio-scientific issues (SSI) as an alternative in science learning. The content analysis approach is used for mapping implementation of social-scientific problems around the world and is created using the ArcGIS 10.5 program. The findings highlight how the distribution patterns of SSI implementation are…

Instructive, inexpensive, and environmentally friendly laboratory syntheses of two highly luminescent copper(I) complexes CuI(PPh[subcript 3])[subscript 2](py[superscript R]) (py[superscript R] = pyridine, 4-cyanopyridine) are described for second-year/upper-division undergraduate inorganic chemistry students. Both complexes exhibit bright…

Tao Xingzhi was the initiator of science education in China. He initiated the 'marrying science with the public' movement in 1931, which formed the starting point of modern science education in China. The two cores of the movement are science popularization and saving the nation through science education. Looking back at the history of nearly…

For the past century, humans have been increasingly dependent on plastics, but have not developed adequate disposal practices. In this lab, students are asked whether burning plastic for energy seems like a reasonable disposal technique. To answer the chemical aspects of this question, students use bomb calorimetry to quantify the combustion…

Many scientists are in agreement: the world is in a climate and ecological emergency. This has led to a media bombardment of doom-and-gloom stories that pupils are increasingly picking up on and developing what has been termed 'climate anxiety'. In 2015, the Sustainable Development Goals (UNDP, 2015) were agreed by all United Nations member states…

The aim of this paper is to provide physics teachers and physics students with interdisciplinary cultural and scientific related content. The "dombra" is on the one hand a cultural symbol of Kazakhstan with a long tradition. On the other hand, the dombra as a musical instrument is an object of interest in acoustics. The topic can lead to…

Biocompatible and biodegradable block copolymers composed of poly(ethylene glycol) (PEG) and aliphatic polyester are a class of promising biomaterials. Herein, a teaching experiment was designed to furnish undergraduates with a reliable method to synthesize an amphiphilic poly([epsilon]-caprolactone)-PEG-poly([epsilon]-caprolactone) (PCL-PEG-PCL)…

Set in the context of modeling-based learning (MBL), this research investigated the potential of epistemic frames as a theoretical and analytical framework for understanding teaching and learning practices used in classroom communities of practice. Epistemic frames are conceptualized as an orienting lens for a classroom community of practice that…

Virtual laboratory simulations can contribute to the educational objectives related to practical classes, especially in situations of online or hybrid teaching. We present a proposal for laboratory activity involving the quantification of proteins with the biuret reaction and measurement by visible light spectrometry. The student will be able to…

The aim of this study was to determine the relationship between preschool teachers' attitudes toward science teaching and self-efficacy beliefs and to examine them in terms of various variables. The research was conducted in the years 2018-2019 using a survey. The study included 113 female and eight male preschool teachers who worked in state or…

A low-cost multispectral imager was built using a multiwavelength LED PCB (light-emitting diode printed circuit board), 3D printed housing, and a monochrome camera, and it was controlled via National Instruments LabVIEW software coupled with some simple electronics. Multivariate data analysis was performed using freely available software packages.…

Organic chemistry is a required course sequence for many STEM students. However, research indicates that organic chemistry reaction mechanisms are especially challenging for students due to a mixture of underlying conceptual difficulties, the process-oriented thinking inherent to the discipline, and the representations commonly used to depict…

A glass of water covered with a disk with a hole in it can be turned upside down without spilling the water in the glass, provided the hole is small enough and the disk is pressed against the rim of the glass. A quasistatic numerical simulation based on hydrostatic pressure and surface tension of water was used calculate the critical hole diameter…