This article describes how a class of year 9 (age 13-14) students engaged in a research-informed and negotiated action science project to address socio-scientific issues. The project was informed by the 'STEPWISE' curriculum framework. Evidence suggests that students benefited from collaborative problem-solving, developing confidence, motivation…

Polychlorinated biphenyls (PCBs) are a family of synthetic chemicals consisting of carbon, hydrogen, and chlorine atoms. PCBs have been produced commercially since 1929 in hundreds of industrial applications. Their continued production in the United States was phased out in the late 1970s, and strict disposal guidelines were regulated as adverse…

This paper examines the extent to which the level of technological equipment affects the integration of the Information and Communication Technologies (ICT) in Greek high school science teaching. The limited ICT infrastructure environment, with only one computer-projector system available and access to the internet ("PC-VP" environment),…

This research designed within the scope of a TUBITAK 4005 project aimed to give science teachers training on argumentation-based learning, to provide them with scientific inquiry experience, to ensure that they gain skills to develop argumentation-based experimental learning methods. Throughout the research, 100 science teachers were given a…

The provision of hands-on wet lab training for students to perform micro-organism proliferation experiments is useful for experiential skills development. However, the risk of laboratory-acquired infections arising from inadvertent ingestion, inhalation or skin penetration of these micro-organisms presents a safety concern. To obviate this risk,…

The study investigated the relative effects of two activity-based instructional strategies on students' attitude towards Physics practical in secondary schools. The study adopted the quasi-experimental design of pretest, post-test and control group. The sample for the study comprised 74 Senior Secondary two (SS II) Physics students who were…

In this communication paper we describe how a research-based approach was applied in Israel to support high-school chemistry teachers, who continued to teach using technology during the COVID-19 pandemic. Within the TPACK (technological pedagogical content knowledge) framework for teachers' knowledge in technological environments, we developed a…

The research was carried out through research and development to produce an innovative chemistry laboratory workbook (InoChemLaW) followed by the implementation of the learning package in the teaching of chemistry. The result showed that a standard InoChemLaW has successfully been developed on the topic of Colligative Properties of solutions. The…

Meaningful understanding of chemistry, among others, includes the ability of an individual to think simultaneously at macroscopic, submicroscopic and symbolic levels, and this presupposes the competence to translate between different types of chemical representations. In this study, we investigated 11th grade Greek students' and 3rd year…

The purpose of this mixed-methods study was to examine the relationship between science writing and student science achievement and how teachers implement the writing strategy claim, evidence, and reasoning (CER) in their science classrooms. Writing is a critical tool for scientific literacy and student achievement. We must teach our students to…

Newton's law of universal gravitation underpins our understanding of the dynamics of the Solar System and of a good portion of the observable universe. Generally, in the classroom or in textbooks, the law is presented initially in a qualitative way and at some point during the exposition its mathematical formulation is written on the blackboard…

We have developed a learning unit based on the Standard Model of particle physics, featuring novel typographic illustrations of elementary particles and particle systems. Since the unit includes antiparticles and systems of antiparticles, a visualization of anticolor charge was required. We propose an alternative to the commonly used…

Fall 2020 presented myriad challenges for teachers trying to plan curricula to meet students' social-emotional and learning needs following an unprecedented spring and summer of isolation and loss due to the pandemic caused by SARS-CoV-2 (Rivera and Wallace 2020). The result of creative planning and adjusting of curricula for remote instruction…

In this study, it was aimed to determine the astronomy literacy levels of secondary school 5th, 6th, 7th and 8th grade students and to examine the sub-dimensions of astronomy literacy in terms of some variables. In the research, descriptive scanning method was used. The study was carried out with secondary school students studying in a secondary…

The "Next Generation Science Standards" (NGSS) stress the need for all students to receive excellent science instruction--including those with disabilities--based upon disciplinary core ideas, crosscutting concepts, and science and engineering practices (NGSS Lead States 2013). Further, the NGSS emphasize reducing disparities in student…