An operationally straightforward, project-like laboratory experiment has been developed in which students directly compare the reactivity of two heterocycles, a cyclic "O,O"-acetal (standard C-O protecting group) and a cyclic "N,O"-acetal (oxazolidine), toward sodium borohydride and methylmagnesium iodide. Students synthesize a…

Many fruits and vegetables undergo browning when they are cut and the tissue is exposed to the air. This is due to the activity of the enzyme polyphenol oxidase (PPO, EC 1.14.18.1) with endogenous substrates. In this laboratory experiment, students prepare slices of different varieties of apples and assess the rate of browning. They make a simple…

The Tasks Inspired by Physics Education Research (TIPERS) workbooks pose questions in styles quite different from the end-of-chapter problems that those of us of a certain age were assigned back in the days before Netscape. My own spin on TIPERS is not just to do them on paper, but to have students set up the situations in the laboratory to…

A new program, ECEP2D, for simulating the one-dimensional (1D) and two-dimensional (2D) patterns of the gel electrophoresis of a protein after it has been digested by one or more enzymes is introduced. With ECEP2D, students can gain deeper insights into gel electrophoresis by performing hands-on simulations. For example, students can visualize how…

Experiential learning is, for the author, a preeminent means to accomplish goals that are fundamental to the entire educational enterprise. It is a set of strategies that structure acquisition of information, analysis of ideas, and self-reflection in order to pull people into active engagement with their world. Among these strategies are skills of…

The recent use of Arduino Uno microcontroller boards for automated data acquisition has revolutionized physics education. The Arduino-based physics labs have dramatically lowered the cost of the experimental equipment, while at the same time replacing the commercial apparatus with open hardware and software. Students benefit greatly from rigorous…

For students seeking careers not related to the computer sciences, the task of installation, configuration and maintenance of software on business class systems may be an essential skill. Dedicated computers are essential to these kinds of courses, but the constraints of university computer labs prohibit their use. Other solutions exist, but…

Thermochromic paint can be made in the laboratory and used for temperature sensing by observation of colour changes. This can be illustrated by an improved method of showing comparative conductivity of heat by different materials, and an amusing method of indicating approximate temperatures of liquids in drinking glasses. The fabric Lycra, used to…

Sociologists of science have noted that the institutional cultures and practices of research tend to de-emphasize the risks produced in the lab, resulting in injuries and deaths in recent lab accidents and increased dangers for surrounding communities. In response to these accidents, science ethics and policy increasingly focus on risk management.…

The introductory physics classroom has long educated students about the properties of the atom and the nucleus. But absent from these lessons has been an informed discussion of magnetic resonance imaging (MRI) and its parent science nuclear magnetic resonance (NMR). Physics teachers should not miss the opportunity to instruct upon this highly…

While some studies suggest that teachers' written comments help students transfer writing skills across contexts (Wardle, 2007), the literature on feedback's role in the transfer process has yet to be fully explored. Research has indicated that feedback that is intentional, specific, and reflective benefits students' writing growth and the…

This paper explores the integration of STEM activities in teaching and learning, emphasizing the importance of innovative pedagogical approaches in effectively introducing theoretical concepts, such as variables and functions, and merging them with practical applications. Drawing on existing literature, this study investigates the integration of…

The study aims to examine fourth-grade private and public-school students' images of the science learning environment using their drawings. The survey was conducted in the 2017-2018 academic year, and a descriptive survey model was used. Participant group of this study consist of 357 fourth-grade students. In this study, data were collected by…

Project-based (research-driven) laboratory courses stimulate student involvement, improve critical thinking and initiate cooperative learning. To this end, a 7-week laboratory project was designed for a sophomore cell biology course to reinforce the fundamental relationship between genotype and phenotype using yeast alcohol dehydrogenase I (ADH1).…

Science popularisation festivals attract more and more people every year, showing that there is a need to satisfy public curiosity. Such events are good occasions to disseminate knowledge to a large audience. The results of scientific research bring advances for mankind. Since research mostly depends on public funds, it is important to gain…