Cognitive diagnostic models can uncover students' mastery of multiple fine-grained skill attributes or problem-solving processes. A number of studies have applied cognitive diagnostic models to detect students' knowledge mastery in mathematics and language testing. However, few studies focus on cognitive diagnostic assessment in K-12 science…

There is a contradiction in the literature about the effect of REACT strategy on science achievement. This study aims to resolve this contradiction by determining the effect of REACT strategy on student science achievement and the factors affecting this strategy by integrating findings obtained from both qualitative and quantitative studies. The…

This paper calls for a critical reimagination of science epistemology and praxis by advocating for a move toward Black liberation in and through K-12 science education. This call is driven by our desires as authors to foster a future of K-12 science teaching and learning that centers, embraces, and promotes historical and contemporary Black…

The processes of educational planning and program development at the local and national levels differ in centralized and decentralized educational systems. In Türkiye, there is a centralized education system, and curricula are created centrally to include all students. In the United States of America, there is a nationally disseminated curriculum…

Inquiry-based teaching is the most widespread approach in science education worldwide. However, in Peru, this model became better known since the latest curriculum reform in 2016, which proposed implementing that teaching approach at all levels of schooling. Since then, no literature review has been conducted on the status quo of implementing…

In 2012, engineering was adopted as a content area in K-12 science education. Yet few science teachers have engineering content or pedagogical content knowledge. Teachers learn how to teach engineering through professional development experiences, for which Darling-Hammond et al. (2017) outline seven characteristics of effectiveness. This…

Communicating the flow of genetic information (DNA ? RNA ? protein) is not only a basis of biochemical education, but also is the essential foundation for understanding the complexity of biological processes. The described laboratory exercise demonstrates that the information encoded into different DNA sequences can be transformed into various…

Inquiry-based science education (IBSE) has been a key element in science education for the past decade and should therefore be a key element of pre-service teacher (PST) education as well. This study aims to explore how IBSE is implemented in teacher education for primary and lower secondary levels (years 1-10) to prepare PSTs for their…

In this study, in line with TIMSS 2019 data, 8th grade students' school engagement in the Turkish education system and various variables in the field of science and mathematics, which are thought to be related to school engagement, were examined with the Random Forest method, a method amongst data mining methods. This research focuses on student…

In Türkiye, Science and Art Centers (SACs) are the institutions where gifted students receive the most education. The aim of this research is to gather opinions and experiences related to various aspects of SAC, including identification, educational programs, problems, advantages and disadvantages, teachers, family approach, and benefits of being…

In 2013, a new set of science standards was introduced for K-12 science education, called the Next Generation Science Standards (NGSS), which focused on three dimensions of science learning that work together: disciplinary core ideas, crosscutting concepts, and science and engineering practices. These standards are novel in their emphasis on…

Fostering experiential learning experiences that allow students to apply their design thinking skills is important for developing technological and engineering (T&E) literacy. However, K-12 schools must ensure that educators providing these experiential T&E experiences are adequately prepared and supported to maintain a safer teaching and…

The Periodic Table of Elements is a valuable resource for chemists and all kinds of STEM professionals. However, it can be initially overwhelming and intimidating to some students. This hands-on lesson introduces abstract concepts in the periodic table through a tangible experience with simple toys and household objects. Students collaborate and…

Nebraska is committed to pursuing a new vision for science education based on "A Framework for K-12 Science Education" (NRC, 2012), that advocates for rigorous, high-quality science education for all students. Following an ambitious four year timeline, Nebraska is working to develop new assessments aligned to and designed for these…

This article reports on a new device, called a geyser guide, that allows for quantitative measurements of both bubble sizes and kinetics of foam production in the so-called Diet Coke and Mentos experiment. The device is easily constructed, is made using readily available materials, and allows the experiment to be carried out indoors with no mess.…