Chemistry is considered a difficult subject by most students. Its difficulty lies in Chemistry's complex and abstract nature. This highly abstract nature requires constant interplay and coordination between the macroscopic, particulate, and symbolic representations. Experts can successfully navigate the various representations without overloading…

Inquiry-based science teaching and learning (IBSTL) has been recognized as a powerful learning approach to develop students' problem-solving abilities and higher-order thinking skills. Research has established cultural dimensions in determining successful implementation of IBSTL. Guided by the importance of context in inquiry, this qualitative…

Background: Although cutting-edge chemistry research can be an interesting and motivating context for students in pre-university education, few characteristics of supportive and effective learning materials based on such contexts are available. Purpose: In this study we investigated the design, implementation, and evaluation of context-based…

With many universities now admitting students into their science programs with little or no prior knowledge of the relevant field, significant challenges arise in the way these fields are introduced. Challenges mount with various preconceived ideas regarding the levels of difficulty, thus necessitating introductory concepts be presented in…

Student performance on open-response calculations involving acid and base solutions before and after instruction in general chemistry and analytical chemistry courses was compared with the output from the artificial intelligence chatbot ChatGPT. Applying a theoretical model of expertise for problem solving that includes problem conceptualization,…

Conceptions about the role of evaluation are crucial in what educators believe and do in assessing student learning; these conceptions influence their practices and should be consistent with the jurisdictional and political frameworks in which they work. While a great deal has been done regarding experienced teachers' conceptions about evaluation,…

This dissertation asks how to improve science education and science communication, and suggests that digital storytelling techniques can be used to better engage learners in the process of knowledge making. Digital storytelling refers to both the use of high-quality digital media content as learning materials, and also to the use of social…

In the laboratory, data acquisition systems are important, as they allow us to easily and precisely collect data. In this sense, Arduino emerges as an automatic data acquisition device with great potential, due to its low cost and high versatility. In this work, we describe the development of an experimental apparatus, with automatic data…

During the time of the COVID-19 pandemic, online teaching was implemented by teachers in almost all education areas, and various technological tools were also employed to improve teachers' online teaching effectiveness. Based on this, the current qualitative case study aims to explore chemistry teachers' experience during online teaching in…

Improving students' STEM competencies is important and relies on fine-grained assessments, however, assessing scientific inquiry in an authentic, automated way is challenging for a number of reasons. Here, we provide an overview of how the learning sciences and computational sciences were used in the design and development of Inq-ITS and its…

This research focuses on the evaluation of the impact on students' attitudes towards the environment, fostered by their involvement in an educational citizen science project related to the monitoring of physicochemical properties and the detection of (micro)plastics in Portuguese coastal waters. We developed an attitude scale, comprising four…

In this guided inquiry experiment, students extract catecholase enzyme from apples to catalyze the oxidation of catechol. They follow the reaction using the UV--vis absorbance of the "p"-benzophenone produced to determine the Michaelis-Menten kinetic parameters. Students make selected experimental choices within a structured framework…

Young children and science are a perfect fit, and now more than ever they need a strong foundation of science literacy. Early childhood science educator Cindy Hoisington makes a case for increasing quality science instruction in the early grades so that our next generation will become curious observers ready to tackle complex science issues and…

One of the diagnostic tests which is very valuable and used in education frequently is two-tier test. Two-tier tests are used for different purposes such as determining misconceptions, determining the comprehension level of students and etc.. Due to the wide and effective uses of two-tier tests, there are different studies in which two-tier tests…

Earthbound manifestations of gravity in falling objects are distorted by the large mass and size of the Earth. Movement is also affected by air resistance. This article questions whether an approach based on everyday observations is necessarily the best starting point for introducing the idea of Newtonian gravity. Instead, a theoretical approach…