Machine learning (ML) is extensively applied in chemistry, particularly in vibrational spectroscopy. However, few teaching examples effectively demonstrate the capabilities of ML in classifying polymeric materials, exhibiting subtle spectral differences that elude visual discrimination. This study presents a teaching example specifically tailored…

An introductory experimental course to teach and assess basic organic synthesis and identification skills has been designed. The first work of this course, which is based on the well-known hydrazone formation reaction of benzaldehydes with Brady's reagent, is presented. The designed experiment has many advantages and perfectly matches the goal of…

There is a growing need for more effective interdisciplinary science instruction across undergraduate degree programs. In addition to supporting students' connections between disciplinary concepts, interdisciplinary learning can develop students' critical thinking skills and allow them to evaluate scientific investigations and claims between…

This study examined the effect of design-based science instruction (DBSI) on sixth grade students' science achievement, as well as their development in relation to science process skills. 213 sixth grade students from three public schools participated in the study. A pilot was conducted in the unit of Systems of the Human Body and the main study…

Previous studies have documented the promising results from student-constructed representations, including stop-motion animation (SMA), in supporting mechanistic reasoning (MR), which is considered an essential thinking skill in science education. Our current study presents theoretically and empirically how student-constructed SMA contributes to…

Laboratory skills assignments were developed as a novel approach to providing students with the opportunity to engage in hands-on laboratory skills development outside of the lab during the COVID-19 pandemic. Initially, the assignments were implemented within a second-year forensic chemistry course of 48 students and redesigned and modified to be…

This study used a case study, one of the qualitative research methods, with the aim of developing guidance materials based on the argumentation-based science learning (ABSL) approach for concepts in the 6th grade unit "Sound and Its Properties" and to examine students' argumentation levels and conceptual understanding. The activity…

This study investigates the role of environmental insight--defined as students' prior knowledge--and the use of a virtual reality laboratory in exploring celestial bodies and solar system content integrated with Qur'anic science, with a focus on their effects on students' argumentation abilities. The research employs a quasi-experimental design,…

Concerns have been raised about the employability of Science graduates, however undergraduate Science curricula rarely focus on building employability. Our goal is to harness existing Science-focused curricula to improve Science graduate employability. In this study we asked whether students could identify learning of employability literacies from…

Communication skills require students to be able to manage, understand, develop, and create orally and in writing. Teaching methods that generally use conventional models of learning activities that are not formed in groups cause students' science communication skills to be lacking, so learning activities are more teacher-centered. This learning…

The aim of the study is to explain the effect of portfolio use on the development of critical thinking strategies of pre-service teachers with different learning approaches. The study used a case study design. The sample consisted of 26 pre-service biology teachers. The Study Process Questionnaire developed by Biggs was used to determine the…

The development and application of a simulator designed with Excel spreadsheets to teach procedural skills in atomic absorption spectrometry and atomic emission spectrometry are proposed. For the development of the simulator, different analytical procedures were followed including analysis of pharmaceutical, forensic, and environmental samples.…

This study aims to develop a structured scaffolding-guided inquiry (SSGI) learning model that is oriented toward nurturing argumentation skills to solve complex problems. Test the effectiveness of the SSGI model in improving students' argumentation skills to solve complex problems. This research is development research that refers to Dick and…

Higher-order thinking skills (HOTS) is one of the skills needed for 21st century challenges, especially for students. The aim of this study was to describe HOTS in students, especially the cognitive domain of analyzing and evaluating. This is a descriptive quantitative study employing a Pretest-Posttest One Group research design. The experiment…

The study investigated the influence of a connected learning approach for explicit nature of science (NOS) instruction and explicit argumentation instruction, in comparison with a non-connected approach, on students' NOS conceptions and argumentation skills. Participants comprised 42 students enrolled in two sections of grade 10 that were randomly…