STEM pedagogy is a popular area for research and discussion. The empirical literature on this topic supports a variety of approaches (e.g., inquiry-based) to help instructors spark student interest create an effective learning environment, and foster long-term retention and transfer of information related to STEM topics. One potential approach is…

By hosting a college students' laboratory skills contest, we provide an interesting activity for students to cultivate good laboratory practices and thereby improve their laboratory skills. The substance of this contest is the detection of the hardness of water, which involves numerous laboratory skills such as solution preparation, weight by…

This study explored how continuous diverse reflective exercises embedded in a Community Service Learning chemistry lab support science students' meaningful learning. The findings of this study are intended for those involved in teaching natural science in higher education, as well as those interested in Community Service Learning, self-directed…

A functionalized fiber (PAN[subscript ADMAP]F) was synthesized by immobilizing "N,N'"-dimethyl-"N"-(4-pyridinyl)-1,3-propanediamine (ADMAP, a DMAP analogue) onto the surface of polyacrylonitrile fibers (PANF). The structure and morphology of the functionalized fibers were characterized by Fourier transform infrared…

Chemistry experiments are challenging for people with vision impairment (VI) as results often rely on visual observations such as a color change. This puts pupils with VI at a disadvantage both in their scientific learning and in their development of broader life skills. In this paper, we describe a simple and low-cost experiment on the adsorption…

The application of the Study and Research Path (SRP) methodology for learning general chemistry, a fundamental course often found in the first-year curriculum of many technical degrees, is investigated. In recent years, SRPs have emerged as interesting inquiry and project-based teaching formats. In an SRP, the search for an answer to a generating…

The undergraduates in the major of Environmental Science and Environmental Engineering frequently ignored the importance of identifying pollution sources for water environment monitoring and knew little about the techniques of identifying pollution sources. Thus, a laboratory experiment which focused on pollution sources identification in a water…

This research explores the impact of integrating smart water monitoring with internet of things (IoT) into 7th-grade science education using the problem-based learning (PBL) model. A quasi-experimental research design with a post-test-only control group is employed to compare the effectiveness of two learning groups: one using the regular PBL…

In an effort to clean up the Chesapeake Bay, Chesapeake Bay Foundation (CBF) members use hands-on experiential learning opportunities to train teacher ambassadors throughout the bay's jurisdictions. Teacher ambassadors use the skills they learn to develop a Meaningful Watershed Educational Experience (MWEE) for their students to raise awareness of…

Nitrate is a crucial parameter for assessing water quality, owing to its dual function in ecological systems. These functions can be beneficial or detrimental depending on whether nitrate concentrations are low or high, respectively. The ultraviolet spectrophotometric method (standard as 4500-NO[subscript 3]--B) is a classic method for determining…

This article explores the possibilities of a cheap one-dollar microscope, the Foldscope, for enhancing out-of-school science education. Developed by Manu Prakash and Jim Cybulski from Stanford University, these origami-type paper microscopes make it possible to provide all students with their own microscopes, due to the low cost. This provides…

Nearly a decade ago, the "Framework for K-12 Science Education" argued for the need to intertwine science and engineering practices, disciplinary core ideas, and crosscutting concepts in performance expectations. However, there are few empirical examples for how intertwining three dimensions facilitates learning. In this study, we used a…

Faculty in the Chemistry and Environmental Science programs at St. Mary's University in San Antonio, Texas, collaborated to develop an undergraduate course in Field-Based Environmental Chemistry. The course was developed and implemented as a 2-semester, 1-semester, and online, synchronous course offered during the 2020/21 COVID-19 pandemic. As…

The active participation of citizens in scientific research, through citizen science, has been proven successful. However, knowledge on the potential of citizen science within formal chemistry learning, at the conceptual and procedural levels, remains insufficiently explored. We developed a citizen science project -- PVC: Perceiving the Value of…

Citizens show misunderstandigs about groundwater that hinder making informed decisions about problems like the deterioration of aquifers. Science education should address this, including modelling practices about the aquifer model. Physical models (PM) have been extensively used in geology teaching, but students rarely construct, evaluate or…