Several researchers and scientific institutions argue that evolution should be explored from the first school years. However, few studies have analysed primary school students' understanding of evolutionary processes or evaluated the impact of educational activities on such knowledge. The available data: (1) suggest that primary school students…

Visual images are widely used in science textbooks to facilitate the understanding of abstract concept of light. This study aims to compare and analyze elementary school textbooks from Korea, the United States, and Japan, focusing on how visual images are utilized to effectively convey light-related content. The findings reveal that all three…

Australia-wide consensus was reached on seven core concepts of physiology. The "movement of substances" core concept with the descriptor "the movement of substances (ions or molecules) is a fundamental process that occurs at all levels of organization in the organism" was unpacked by a team of three Australian physiology…

Linking assessment and curriculum in science education, particularly within the topic of matter and its changes, is often taken for granted. Some of the fundamental elements of the assessment, such as the choice of wording and visual representations, as well as its relation to the curricular sequence, remain understudied. In addition, very few…

The goal of all reform documents in science education is to target scientific literacy. Toward that end, having students understand the nature of science (NOS) is a critical component. As it turns out, the development of NOS conceptions is a cognitive learning outcome. Therefore, an explicit approach needs to be promoted and emphasized in the…

Retrieval practice has generally been shown to be an effective study strategy. The benefits of retrieval practice, however, have largely been compared to restudying, a passive and ineffective study strategy. Here, I investigated the memory and metamemory effects of practicing retrieval versus generating mnemonics, an active and effective study…

Recent progress in elucidating chemical reactions allows to explain chemistry by the potential energy of the involved chemical structures. Nevertheless, from an educational point of view, empirical results indicate that students often do not connect the core idea of energy with other chemical concepts. From a resource-oriented perspective,…

Academic performance of students is global issue of great concern to educators. This study sought to ascertain the effect of STEM problem-based learning as an inquiry approach on secondary school student's performance in Biology at government-owned secondary schools in Kebbi State, Nigeria. The non-equivalent control group design was adopted. Two…

In the present study, text presentation in biology textbooks was analyzed with respect to misconception and elements of conceptual change towards the learning of "Cell Structure". Content analysis of the lesson "Cell Structure" in five biology textbooks of Grades 11 and 12 across selected educational boards in Asia like the…

Redox reactions and their balancing are one of the basic chemistry subjects in which students may experience remarkable learning difficulties at the beginning of their university career. This topic represents an evolution of stoichiometry concepts related to the balancing of chemical reactions and can be taught with different approaches as a…

The concept of co-amorphous systems is introduced in an integrated laboratory experiment, designed for advanced chemistry students, using solvent-free, environmentally friendly mechanochemistry. The dual-drug naproxen-cimetidine co-amorphous system (NPX-CIM) is investigated as an example of the emergent field of medicinal mechanochemistry.…

Materials science research has expanded significantly in recent years; a multidisciplinary field, home to an ever-growing number of chemists. However, our general chemistry degree courses have not changed to reflect the rise in interest in this topic. In this paper, we propose a laboratory experiment for the undergraduate chemistry practical…

Resonance is a foundational organic chemistry concept, but it is consistently misunderstood by undergraduate students. The development of a concept inventory--a multiple-choice assessment where the incorrect answer choices stem from commonly held alternate conceptions--on the concept of resonance could help organic chemistry instructors quickly…

Chemistry in water is an emerging field that fulfills the fifth principle of green chemistry: replacing toxic organic solvents with their benign counterparts. Although some pharmaceutical industries have developed and adopted chemistry in water, its implementation in teaching laboratories is still limited. Therefore, we have designed an experiment…

Chemistry is increasingly data centric and the undergraduate curriculum needs to adjust to keep up. To address this, we created the "Air Quality Activity," a new first-year undergraduate activity where students use Microsoft Excel to analyze a unique subset of atmospheric ozone (O[subscript 3]) and nitrogen dioxide (NO[subscript 2])…