In primary organic chemistry, students learn about the dehydration of ethanol to ethylene with concentrated sulfuric acid. Similar reactions(the dehydration of alcohols) exist in nature. For example, various alkenes with aromas are synthesized from linalool, a monoterpene tertiary alcohol. In this laboratory experiment, we report experiments…

In this second-semester organic chemistry lab experiment, students work collaboratively using a combination of chemical synthesis and NMR spectroscopy to investigate the diastereoselectivity associated with the Meerwein-Ponndorf-Verley (MPV) reduction of two ketone substrates having carbonyl groups flanked by an [alpha]-chiral carbon with…

Here, a relatively simple laboratory experiment of a physical pendulum, suitable for students of science and engineering in the first courses of university physics, is presented to illustrate its dynamic behavior and to determine its inertia moment. To this end, a long wooden rod of length L = 99.8 cm and cross-section radius R = 1.73 cm was used…

In this laboratory experiment, a guided inquiry exploring the physicochemical principles of the dissolution of Ca(OH)[subscript 2](s) in water is proposed for laboratory classes in university and high school. As part of students' inquiry, two experimental approaches are used. One is the change in solubility with temperature revealed by measuring…

Plastic waste is a growing concern in recent years due to the massive increase in single-use plastic applications. Despite the ever-increasing amount of waste, recycling plastics is not a simple process due to difficulties in sorting, which results in significantly downgraded material properties. This hands-on lab experiment showcases the…

Digital practical work (DPW) has emerged as a highly effective and indispensable component of science education, enhancing and extending traditional laboratory experiences. DPW aims to complement physical laboratory experiments, particularly those that teachers may find challenging to conduct or lack the confidence to perform. In this study, a…

In this paper, we investigate how cultural, historical, and emotional factors influence scientific concepts in Brazil's Scientific Vocation Program (Provoc) and Japan's Sakura Science Program. It analyzes how Western and Eastern views of science might shape program goals through high school students' reports. Science education, history and…

There is a growing need for chemistry students to be able to handle and manipulate large datasets and analyze them in an efficient and accessible way. This creates the need to develop course materials that introduce these topics early in the undergraduate curriculum. To address this growing need, this activity introduced RStudio to students…

Many educational institutions transitioned to digital distance-based learning and assessment formats in 2020 due to the severe acute respiratory syndrome--coronavirus 2 (SARS-CoV-2) pandemic. This shift has often been associated with concerns about increased student cheating and heightened stress. In this study, we compared the major course…

The paper reports how a teacher and her students use drawings as a resource for observations and how such observations are connected to different epistemic practices in science lessons. Interactional data in a 1st grade classroom were analyzed based on Ethnography in Education. Results show that the use of drawings materialized children's…

With the release of Framework for K-12 Science Education (National Research Council, 2012) and Next Generation Science Standards (2013) documents, engineering was integrated into science teaching. With that emphasis, teachers require to incorporate engineering practices and nature of engineering into their practice. Most of the attention has been…

The objectives of this research are: (1) to develop a flipped classroom learning plan using inquiry-based learning on the topic of substance separation for Grade 8 students, to achieve effectiveness according to the 75/75 criteria; (2) to compare science process skills and learning achievement before and after implementing the developed learning…

Procedural and conceptual e-scaffolding has been shown to be effective for assisting novice learners in understanding new concepts. Its integration with modelling instructions (E-MI) raises expectations for improving scientific reasoning (SR) in students whose level is still a concern in Indonesia. A quasi-experimental study was conducted to find…

In the face of accelerating climate change, effective education is paramount to fostering informed citizens and enacting meaningful action. Effective climate instruction contextualizes content so that students are engaged emotionally (affect) and can translate science into action. This paper describes six courses that use integrated approaches to…

The main purpose of this study is to determine what teachers and academicians think about the process of designing and implementing science activities in informal settings and make suggestions as to how to teach more effectively in them. This study is a cross-sectional survey study and divided the teachers constituting the sample group into…