Chemical reasoning, and in particular structure--property reasoning, is an important goal of chemistry education. Johnstone's triangle (1982, 1991) is often used to explicate this type of reasoning. This triangle describes the multilevel thought chemical reasoning requires and shows why students find chemistry so difficult. However, this model…

Global climate change (GCC) is one of the greatest challenges of our age and a highly significant socio-scientific issue (SSI). Developing secondary students' understanding about the Earth's climate and GCC is critical for empowering future citizens and a key focus of the "Next Generation Science Standards" (NGSS Lead States, 2013). In…

A didactic sequence is proposed using an infrared puzzle and a didactic questionnaire for the teaching-learning of infrared spectroscopy at the upper secondary level. The didactic sequence that was designed was implemented in person in the subject of Chemistry IV at the high school level, corresponding to the sixth semester of the curriculum of…

This exploratory multiple-case study investigated the belief systems (professed and enacted) of four secondary school biology teachers towards teaching through dialogic argumentation. The constant comparison method was used to iteratively assess the qualitative data, which included classroom observations, field notes, transcripts of the formal and…

Herein, we developed a mobile augmented reality (AR) application that can recognize chemical bonding by arranging markers on which atoms are augmented, in accordance with the specific characteristics of actual chemical bonding. From an educational affordance perspective, the development targets for AR application were selected to recognize…

When thinking about Olympic winter sports and watching events on television, people mostly focus on events where the chances of success are high for fellow-countrymen. For example, in the Netherlands speed skating is considered the main winter sports event. But with Kimberley Bos there is now also a Dutch medal candidate for the Winter Olympics…

In the context of the current COVID-19 pandemic, we deem of importance the identification of what content is privileged in secondary schools around health and disease. From our point of view, a relevant task is to accompany science teachers in their transit from teaching information to be evoked to teaching knowledge on that content that enables…

Instructional resources play an important role in conducting high quality education. This research assessed the availability and utilization of instructional resources in Moro Local Government Area (LGA) of Kwara State, Nigeria. Descriptive survey research was adopted for the study. A total of sixty (60) Biology teachers were randomly sampled from…

Circular motion changes the perception of up and down. For a skater, the need to lean in towards the centre of an arc constitutes an embodiment of centripetal acceleration. This paper presents a discussion between a physicist and a high-school science teacher without previous physics studies at university level. The discussions started as part of…

Physics problem-solving ability is among the crucial skills physics students require as it enhances their conceptual understanding and develops their abilities for real-world problem-solving. This study employed a descriptive design to investigate the physics problem-solving skills of Senior-Five physics students from Rwandan secondary schools.…

We investigated the effect of short-term teaching (3 weeks) using image analysis on gymnasium/secondary school students' (ISCED3A) skills (science process skills, SPS) and knowledge using Fiji (ImageJ) software. The theoretical teaching was combined with IT-based education (measurement of the area or signal intensity on photos from scientific…

CAEx (Computer-Assisted Experimentation) enables real-time experiments to be carried out using a computer; it includes data acquisition and sensor systems, as well as real-time measurement of numerous physical properties. The use of computer-assisted experimentation in the teaching of physics and chemistry in Moroccan secondary schools underwent…

Effective organic chemistry instruction necessitates an adaptable approach that accommodates varied learning styles and improves students' comprehension of concepts. To attain this goal, teachers may employ visualization, molecular modeling, and interactive software to explain three-dimensional structures and spatial interactions. Thus, the…

Teaching redox reactions requires careful investigation as learners often display a range of misconceptions, particularly in connecting the chemistry levels of representation: macroscopic, sub-microscopic, and symbolic. This study explores teachers' teaching strategies, opportunities, and challenges when developing conceptual understanding of…

A holistic education should nurture a range of skills that are essential for thriving in a fast-changing world, including higher-order thinking skills. These skills are deeply intertwined with knowledge and many in the assessment community agree they should not be assessed in isolation. Curricula structured around long-established subject…