In this laboratory exercise, students have an opportunity to evaluate the potential endocrine disrupting abilities of environmental chemicals of their choice using human cell culture. Over the course of 9 weeks, students learn how to aseptically handle and manipulate cells, perform and analyze a cytotoxicity assay and an enzyme-linked…

Lab activities in primary and secondary education are essential to promote students' scientific skills. In this article, we propose a lab activity where different antimicrobial agents are used to the microorganisms' susceptibility to them. Moreover, we produce a rubric, a scoring tool, to quantify students' replies and evaluate the whole activity.…

The purpose of this quantitative pretest-posttest quasi-experimental study was to examine the effect on student success rates in biology courses with laboratory components taken via distance education at a California community college. This study examined success rates for nine different courses, including 98 sections (2,299 students) taught only…

This communication describes our initial experience modifying traditional (written and calculation-based) assignments in the surface and colloid chemistry course given as a part of the chemical engineering program. The new exercises contain a more relatable context that is easier to understand and remember in terms of future challenges in…

To promote student involvement in the reduction of chemical waste generated by teaching laboratories, a method published by Flinn Scientific for the treatment of waste sodium molybdate has been modified for use in treating waste generated by the popular molybdenum blue method for the analysis of phosphate in natural water samples. In this teaching…

A version of the classic rotationally resolved infrared (IR) spectrum of a diatomic molecule experiment has been developed using the POGIL framework to more fully engage students in the collection, modeling, analysis, and interpretation of the data. An analysis of the experimental protocol reveals that the POGIL approach actively engages students…

Course-based undergraduate research experiences (CUREs) are becoming more prevalent throughout chemistry curricula as a mechanism to lower barriers to participation, improve retention, and decrease success gaps for historically minoritized populations. Given the evidence that long-duration and early entry experiences are more impactful, herein we…

Innovative approaches to teaching genetics are essential for improving student engagement and comprehension in this challenging field. Laboratory-based instruction enhances engagement with the subject while fostering the development of practical competencies and deepening comprehension of theoretical concepts. However, constraints on time and…

Recent advancements in large language models (LLMs) hold significant promise for improving physics education research that uses machine learning. In this study, we compare the application of various models for conducting a large-scale analysis of written text grounded in a physics education research classification problem: identifying skills in…

The objective of the study is to assess the effectiveness of laboratory activities employing the Predict-Explain-Observe-Discuss-Explain (PEODE) approach in promoting gifted students' interpretation of everyday problems related to fundamental science concepts. This quasi-experimental study involved 54 gifted students enrolled in the Science and…

There is increasing interest in the use of artificial intelligence technologies, which have become a transformative force in the field of education, in educational fields that include subject areas that support lifelong learning, such as science and chemistry education. In this study, a systematic review was conducted on the use and effects of…

Cell biology research methods and techniques is one of the training courses for graduate students before enter the laboratory in many universities. However, due to the limited time of experimental teaching while the teaching contents are increasing, choosing suitable teaching content has always been a challenge faced by experimental teaching.…

In order to introduce students to the fascinating field of femtochemistry, we propose here a practical laboratory training course conceived for second-year master's students in chemistry. We describe the use of a broadband femtosecond transient absorption (pump-probe) experiment for monitoring a fast light-triggered chemical reaction in solution.…

Safe and high-quality water is essential from both the health and environmental perspectives. Water quality is so important that the United Nations has included water in the 17 Sustainable Development Goals of the 2030 Agenda for Sustainable Development. Thus, the adequate control and treatment of water are necessities. These tasks must be…

A modular experiment for upper-level undergraduate students is presented, featuring the product cycle and process evaluating the quality and quantity of biodiesel obtained from a microalgae feedstock grown under carbon-supplemented and nutrient-deprived conditions. Batch reactors are used to cultivate and harvest microalgae, which undergo…