An important objective of any analytical chemistry course is for students to generate and interpret data from the analysis of complex, real-world samples in order to assess the effectiveness of the analysis method, including the calibration. In this laboratory exercise, students directly compare calibration methods (external standards and standard…

We have revamped a classic analytical chemistry laboratory experiment, "Determination of an Unknown Acid", to provide students an opportunity to learn about new advances in the material sciences and their applications in analytical chemistry in an effort to reinforce the key concepts of chemical analysis. Specifically, students were…

This article introduces a novel experiment that involves vitrimers, a new type of polymer, in polymer chemistry and physics lab courses for undergraduate students. Vitrimers are permanently cross-linked networks that can be reprocessed under certain external stimuli. Therefore, they combine the advantages of traditional thermoplastics (excellent…

Curriculum-based undergraduate research experiences (CUREs) have been shown to increase student retention in STEM fields and are starting to become more widely adopted in chemistry curricula. Here we describe a 10-week CURE that is suitable for a second-semester organic chemistry laboratory course. Students synthesize small molecules and use…

We engaged preservice teachers in a redesigned mathematics field experience with a central focus on children's reasoning through teaching experiments and purposeful reflection on practice through Lesson Study. Indicators of effective teaching were examined through analysis of lesson plans and enactment, comparing student teachers who participated…

Dark matter is one of the most intriguing scientific mysteries of our time and offers exciting instructional opportunities for physics education in high schools. The topic is likely to engage and motivate students in the classroom and allows addressing open questions of the Standard Model of particle physics. Although the empirical evidence of…

This paper describes the design and implementation of a course-based undergraduate research experience (CURE) sequence in chemistry that links a lower-division, organic chemistry course to an upper-division, analytical chemistry course. The focus of student research is on blood preservation using trehalose derivatives in order to mimic the…

This paper describes an undergraduate biochemistry laboratory module consisting of a set of experiments designed around a purification scheme for bovine serum albumin (BSA). Students purify BSA from cow plasma by a combination of salt and acetone precipitation, equilibrium dialysis, ion exchange, and size exclusion chromatography. Students use the…

Following the COVID-19 pandemic, which took the world under its influence, many countries, including our country, switched to distance education. During this period, students did not go to schools and lessons continued to be taught online remotely. In this study, it was aimed to investigate secondary school students' opinions about conducting…

Digital sensors allow people to collect a large quantity of data in chemistry experiments. Using infrared thermography as an example, we show that this kind of data, in conjunction with videos that stream the chemical phenomena under observation from a vantage point, can be used to construct digital twins of experiments to support science…

In this paper, we present a physical modeling activity whose objective is to allow students to determine the differences between a disk and a sphere using pure scientific criteria. Thereunto, we reproduce the Sun-Earth-Moon system with low-cost materials and compare the illumination effects on the Moon considering two possible shapes for it (a…

General relativity (GR) represents the most recent theory of gravity, on which all modern astrophysics is based, including some of the most astonishing results of physics research. Nevertheless, its study is limited to university courses, while being ignored at high-school level. To introduce GR in high school, one of the approaches that can be…

A suitable combined laboratory experiment can involve more chemical disciplines and form students' views on practical connections. A laboratory experiment has been prepared focusing on the adsorption of the dangerous Co(II) ion using natural adsorbents representing waste material of a polysaccharide and keratin nature. Efficiency of Co(II)…

As green chemistry and engineering are being integrated into chemical processes in academia and industry, it becomes equally important to equip students with the relevant tools in the fields of sustainable chemistry and processes. In this context, continuous flow technology has been identified as one of the promising strategies. Herein, we…

In a chemistry course for students not majoring in science, there is more to learn than some memorized facts: the student can find, in most non-major chemistry texts, the definition of atomic number, something about chemical bonding, and names of some classes of chemical compounds. Where facts come from and how accurately they are known are often…