Understanding the general ideas and methods of detecting molecular structures is essential in high school chemistry. However, there is a need for more practical activities in teaching. A hands-on activity was designed in this study, which uses flexible foam balls and long sticks such as knitting needles to imitate how scientists construct the 3D…

This study examines the impact of hands-on chemistry laboratories in shaping secondary students' chemistry self-concepts. Utilizing a mixed methods approach, the research sought to address how students' chemistry self-concept varied during the first semester of an introductory chemistry course and give voice to students' understanding of the role…

Aim/Purpose: This paper highlights an innovative and impactful online operating system algorithms e-learning tool in engineering education. Background: Common teaching methodologies make it difficult to teach complex algorithms of operating systems. This paper presents a solution to this problem by providing simulations of different complex…

The lateral flow immunoassay (LFIA) is a simple and cost-effective rapid diagnostic test designed for the on-site detection of disease biomarkers. In the context of introducing this technique to undergraduate biotechnology students, we propose a comprehensive 5 h laboratory experiment. This experiment covers various aspects, including the…

Triterpenic acids (TA), a class of triterpenoids, are widely distributed as secondary metabolites in plants. They have a pentacyclic structure and show high structural diversity. In this work, a simple but efficient method for extraction and detection of TA derivatives from apple peels is described. The method is technically straightforward and…

The study examined preservice teachers' development in conceptions of NOS and their argumentation components using an explicit approach that targets NOS and argumentation. Participants were 20 preservice elementary teachers enrolled in a science methods course emphasizing explicit instruction of NOS and argumentation through various hands-on…

Intergenerational science education programs provide many opportunities to enhance content connection-making, foster classroom community, and cultivate science identity for participants. The Early Adventures Program (EAP) at the American Museum of Natural History (AMNH) serves as a model for adult-child co-learning programs for children (ages…

Background/purpose: One of the skills that students had to master in science learning was science process skills. However, there has not been much research examining these skills in elementary schools, especially those related to practicum guides integrated with local wisdom. Therefore, this study aimed to analyze the effectiveness of a science…

The adoption of STEM hands-on activities in classrooms should not only focus on artefact building but also aim at helping students construct conceptual knowledge. For achieving such goal through teachers' professional development, this study proposed a practice-based design. The design provided a dual-focused STEM hands-on activity which aimed at…

The importance of environmental literacy in early childhood education lies in its inclusion of the requisite knowledge, skills and attitudes for understanding the environment and making well-informed decisions. In preschool settings, promoting environmental literacy helps children develop foundational knowledge about natural systems, cultivates…

Although ultrasound (US) appears to complement traditional anatomy teaching, limited objective data exist on its efficacy. Existing literature often relies on student perceptions rather than performance-based outcomes. Additionally, the role of spatial understanding (SU)--the ability to mentally manipulate and interpret 3D anatomical…

This study aimed to determine the effect of the implementation of the STEM content "insect hotel" activity in out-of-school learning environments on the scientific creativity of middle school students. In the study, a quasi-experimental model with a pre-test post-test control group was used, which is one of the quantitative research…

Understanding potentiometry is a difficult task when students in initial courses of Analytical Chemistry are first introduced to instrumental techniques. The closest instrument to them is a pH meter, which is frequently used as a "black box", without a real understanding of how it works. Here we present the assembly of jelly modules that…

A model kit consisting of magnetic rods and steel balls, which is generally sold as a desktop toy, has been utilized to construct physical models for teaching packing arrangements of metallic crystal. All four basic metallic crystal structure models are easily constructed layer by layer, and corresponding unit cells can be naturally derived from…

There is an increasing need for fundamental electrochemistry concepts to be taught in the undergraduate curriculum, given the broad applicability of electrochemical technologies in addressing a wide range of global issues from critical energy shortages to real-time medical diagnostics. However, many electrochemical concepts are often taught in…