A multiday laboratory exercise is described that is suitable for first-year undergraduate chemistry, biochemistry, or biotechnology students. Students gain experience in performing chromatographic separations of biomolecules, in both a column and thin layer chromatography (TLC) format. Students chromatographically separate amino acids (AA) in an…

Ion exchange chromatography is an important technique in the separation of charged species, particularly in biological, inorganic, and environmental samples. In this experiment, students are supplied with a mixture of two substitution-inert complex ions. They separate the complexes by ion exchange chromatography using a "flash"…

The determination of the solid-liquid phase diagram of a binary system is always used as an experiment in the undergraduate physical chemistry laboratory courses. However, most phase diagrams investigated in the lab are simple eutectic ones, despite the fact that complex binary solid-liquid phase diagrams are more common. In this article, the…

Instrumentation for real-time PCR is used primarily for amplification and quantitation of nucleic acids. The capability to measure fluorescence while controlling temperature in multiple samples can also be applied to the analysis of proteins. Conformational stability and changes in stability due to ligand binding are easily assessed. Protein…

We present a lab that enables students to test the role of genes involved in the regulation of lateral roots growth in the model plant "Arabidopsis thaliana." Here, students design an experiment that follows the effects of the hormone auxin on the stimulation of genes involved in the formation of lateral root initials. These genes, known…

An instructional laboratory curriculum for a first-semester introductory organic chemistry course has been developed using microwave-assisted organic synthesis (MAOS). Taking advantage of short reaction times, materials were developed to facilitate collaborative experimental design, analysis, and debriefing of results during the normal laboratory…

Engineering ethics education typically focuses on decisions by individual engineers and case studies of disasters. This does not reflect the everyday decisions that practicing engineers must make, and neglects the fact that most engineers work on teams rather than alone. The focus on safety and disaster prevention leaves little time for discussing…

The XXVth Anniversary of CercleS brings back memories not only of the CercleS Association and its development, but also of the role of Language Centres in European universities. This article presents the Centre of Languages and Communication (CLC) at Poznan University of Technology (PUT) in Poland. It focuses on the main challenges the CLC has…

Augmented reality (AR) sandboxes are useful tools in helping students develop a three-dimensional understanding of topographic maps and landforms. Research on the AR sandbox indicates that students enjoy it, but evidence about student learning gains is inconclusive. This study aims to understand how students engage with these tools as a precedent…

Without any major changes, a pilot version of a physical science lab course was able to continue when the COVID-19 crisis necessitated the abrupt suspension of on-campus education. The 'Maker Lab' course, in which students conceive and set up their own experiments using affordable microcontrollers, required students to follow the entire arc of the…

The present study aimed to determine the impact of argument-based laboratory method on the scientific process skills of pre-service primary school teachers and their views on the nature of science. The study was designed based on the pretest-posttest quasi-experimental method and conducted with 64 sophomore pre-service primary school teachers (37…

STEM-related educational outreach offers students enriching opportunities to become more familiar with science, in terms of how it relates to their daily lives and with respect to possible career paths that they might want to follow. At the same time, graduate student trainees providing that outreach act as important resources for elementary and…

The science learning environment is an important factor in students' attitudes toward their science experiences in school, as well as toward science courses. This study compares how learning in different laboratory environments (hands-on or virtual) influences these attitudes for middle school (7th grade) students. Participants were 143…

This paper reflects on the process followed in the Swanson School of Engineering at the University of Pittsburgh to cultivate an innovative and entrepreneurial culture among students and faculty. As a member of the first cohort of the Pathways program, a strategic process was initiated to unlock the innovation capabilities of students and to feed…

An interactive, field-based course on the environmental aspects of natural water was developed as part of STEM initiatives at a comprehensive university in the United States. The project is funded by the National Science Foundation. The course is focused on two fundamental student skills, such as hydrologic field procedures and analytical methods.…