Background and Context: Based on issues arising around how to best prepare CS teachers and the constantly changing nature of the CS education content, curriculum, and instructional methods, it is crucial to examine the needs of secondary CS teachers. Objective: The primary purpose of this study was to identify secondary computer science (CS)…

In previous work, we described how three teachers differentially create opportunities for students to act as epistemic agents and to engage in collective knowledge-building work (Alzen et al., 2020). The descriptive nature of this previous research provided information about what variability can look like in classrooms attempting these…

Student participation in the science practices is more than following directions to conduct pre-determined experiments and analyze data with expected solutions. This requires classroom shifts that increase the epistemic agency of students: increase student involvement and authority in developing science knowledge and practices, rather than the…

Adopting new instructional materials is an important way to support reform in science education, but implementation can be challenging and complex. Therefore, we conducted a contrasting case study of two middle schools implementing new curricular materials. We conducted semi-structured interviews with teachers and leaders and collected…

The way high school chemistry curricula are structured has the potential to convey consequential messages about knowledge and knowing to students and teachers. If a curriculum is built around practicing skills and recalling facts to reach ''correct'' answers, it is unlikely class activities will be seen (by students or the teacher) as…

Increasing access to computational ideas and practices is one important reason to integrate computational thinking (CT) in science classrooms. While integrating CT into science classrooms broadens exposure to computing, it may not be enough to ensure equitable participation in the science classroom. Equitable participation is crucial because…

This article critically examines deficiencies in the final year high school programme, particularly in the Physics-Chemistry and Mathematics A and B specialties, focusing on the inadequate transition from classical to quantum mechanics. Based on teachers' perceptions, the study analyses the value of integrating artificial intelligence (AI) and…

The teaching and learning of chemistry can be challenging due to the complex and abstract nature of the subject matter. Traditional methods of instruction often struggle to engage students and facilitate an understanding of essential chemical concepts. To address this, an innovative card game, "Compound Chain", was developed and…

In the 21st century, post coronavirus disease 2019 (COVID-19) pandemic, virology has been, and continues to be, in the public eye. The impact of the COVID-19 pandemic globally has affected political, economic, social, policy, and health aspects. Transformative breakthroughs in the field of virology such as disease prevention, vaccines, drug…

Several properties of Earth's magnetic field (field vectors, time dependence) are measured in various locations using a smartphone/tablet magnetic sensor. To enable a proper use of the magnetic sensor as a classroom tool, the exact location of the sensor in the device and its resolution must be identified in a first step. Then, students may…

This paper presents a perspective of how the radiation and radioactivity themes have been discussed at the high school level in several locations around the world. In this context, scientific journals, academic journals, theses, dissertations, and media materials were analyzed. Recent research has shown that the concern with the discussion about…

This is a qualitative, descriptive, and multi-case study, in which the researcher investigated the perceptions of middle school teachers who were implementing three-dimensional learning aligned with the Next Generation Science Standards (NGSS) into their instructional practices. The participants were 10 middle school teachers who worked in three…

One reason for the widespread use of the energy concept across the sciences is that energy analysis can be used to interpret the behavior of systems even if one does not know the particular mechanisms that underlie the observed behavior. By providing an approach to interpreting unfamiliar phenomena, energy provides a lens on phenomena that can set…

K-12 science teachers in the United States are encouraged to teach their students engineering. When incorporating engineering into their science curricula, teachers commonly either focus on: (1) engineering and lace science throughout; or (2) science and lace engineering throughout. This study explores middle school students' nature of engineering…

Calls for engineering integration in pre-collegiate science courses are being made across the globe. The success of such efforts depends heavily on science teachers changing their instructional practices to include engineering. We conjecture when a science teacher chooses to make instructional change, including a change to integrate engineering…