Determination of enzymatic activity is a relevant experiment in teaching chemistry and biochemistry to high school and college students. A method for measuring the kinetic parameters of lactose cleavage by the enzyme lactase is described. This enzyme catalyzes the hydrolysis of lactose to galactose and glucose. The kinetic parameters can be…

Providing students with one-on-one interaction with instructors is a big challenge in large courses. One solution is to have students interact with their peers during class. Reciprocal peer tutoring (RPT) is a more involved interaction that requires peers to alternate the roles of "teacher" and "student." Theoretically,…

This study aimed to discern sociocultural processes through which students learn in field excursions. To achieve this aim, short-term ethnographic techniques were employed to examine how undergraduate students work and enact knowledge (or knowing) during a specific field excursion in biology. The students participated in a working practice that…

In chemistry curricula, both the role of the laboratory program and the method of assessment used are subject to scrutiny and debate. The ability to identify clearly defined competencies for the chemistry laboratory program is crucial, given the numerous other disciplines that rely on foundation-level chemistry knowledge and practical skills. In…

Manipulative environments play a fundamental role in inquiry-based science learning, yet how they impact learning is not fully understood. In a series of two studies, we develop the argument that manipulative environments (MEs) influence the kind of inquiry behaviors students engage in, and that this influence realizes through the affordances of…

Sustainability is emerging as a prominent curricular initiative at the undergraduate level, and as a result, involving students in real-world problems in the classroom and laboratory is an important goal. The specific problem of a dwindling supply of clean and safe drinking water is also of utmost importance and relevance. This general chemistry…

Students at the university level spend more and more time in learning management systems (LMSs), which support current teaching by offering online tutorials or units. These LMSs allow individual preparation for the students, especially in large classes. However, students' learning in these online systems is often not supported by detailed…

Although physics teachers often seek to help their students make sense of physics concepts, our field has yet to thoroughly explore how and why students engage in sensemaking. In this study we use the epistemic games framework to propose a model for students' sensemaking processes. Our analysis of a series of clinical interviews with introductory…

The test of understanding of vectors (TUV) is a multiple-choice test that was recently developed to assess student understanding of vector concepts required in introductory physics courses at the university level. In this study, the TUV was administered to 889 first-year students at the University of Zagreb. The Rasch model was used to evaluate…

In the last decade, a powerful tool has been given to physics teachers to visualize thermodynamic phenomena. Thermal imaging cameras are fascinating devices opening the world of (even small) temperature changes and being able to uncover hidden manifestations of many processes around us. This paper describes a few qualitative thermal imaging…

This study investigates a novel approach to training first-year science faculty students in laboratory safety and ethical awareness. Students were exposed to videos of laboratory incidents via their smartphones. They had to respond to the scenarios by scanning QR codes transfixed on certain equipment or taking photos of the laboratory's…

Undergraduate lab sessions play a crucial role in building and reinforcing conceptual understanding in STEM education. In third and fourth year higher education, lab sessions can be challenging to incorporate into the curriculum due to cost, safety, or difficulty in realizing abstract concepts. Mixed reality (MR) systems provide a novel solution…

Introduction to Research is a 4-credit elective course designed for first-year undergraduate students who have a strong interest in the chemical sciences and scientific research. The rich yet accessible field of gold nanoparticles was the theme connecting a multifaceted teaching/learning experience. In the first unit, students were introduced to…

Undergraduate physics programs are increasingly facing pressure from university and college administration, industry, and funding agencies to improve training of our undergraduates. Increasingly, tertiary institutions have redefined their graduate profiles and mission statements to encompass more than just content knowledge, including skills that…

Seventeen degree programmes of Biomedical Laboratory Science (BLS) in all Nordic countries collaborate in BioNord under NordPlus. For some years, BioNord focused on the use of information and communication technology (ICT) in the biomedical laboratory science education. The purpose of the study was to explore the use of ICT among teachers and…