This paper describes the application of an accessible, benchtop mass spectrometer using an Atmospheric Solids Analysis Probe (ASAP) for easy sample introduction, coupled with Atmospheric Pressure Chemical Ionization (APCI) as a soft ionization technique, to the inquiry-based identification of the metal composition of alloys, including coins.…

Recent advances in laboratory automation and digitization require a teaching strategy for undergraduate students that is inclusive of skills in these areas so that students can be prepared to work within the modern laboratory. Future scientists will need training in coding, microcontrollers, on-demand manufacturing, and robotics. With this in…

In-service teachers of science work with unique content and pedagogical experiences. Understanding teacher agency in these circumstances will help researchers understand the actions that these teachers take, actions that are consequential for shaping teaching patterns and supporting the development of students' scientific practices. The purpose of…

Sustainability has a molecular basis that suggests a central role for chemistry in addressing today's challenges to Earth and societal systems, and this role requires educators to see chemical reactions and processes as integral parts of dynamic and interconnected systems. Despite this prospect, few accessible resources are available for students…

Local implementation of science reform efforts in part relies on science teacher leaders (STLs) to improve science instruction in classrooms and beyond. The lack of science-specific professional learning resources drives STLs to act as boundary spanners to locate resources outside their local context to fill that gap. Museums and other informal…

Agentic engagement refers to students' proactive and constructive contribution to the flow of instruction. The literature on student agentic engagement is missing the voices and perspectives of teachers. Given that the field knows little about what agentic engagement means to teachers, the goal of this study was to describe agentic engagement from…

This study investigates if a force-based teaching approach, based on quantum mechanical principles and developed in a lesson study, would enhance the understanding of chemical bonding among upper secondary school students. The teaching approach was based on research on the teaching and learning of chemical bonding. The study included first-year…

Formative assessment is highly beneficial for student motivation and achievement, but in undergraduate courses, especially large introductory life sciences courses, it may be difficult for instructors to gather the evidence necessary for quality formative assessment. Undergraduate teaching and learning assistants (UTLAs) can help to implement…

Despite the intrinsic interdisciplinary nature of STEM, teaching interdisciplinarity in the classroom is difficult and students struggle to find the applicability of concepts and skills in different scientific disciplines. In this work we propose a micro-credential "badge" system called Demonstrated Understanding of Core Knowledge (DUCK)…

Socioscientific issues (SSI), important for developing scientific literacy, are controversial issues related to social and scientific information. This study investigated the effect of argumentation about SSI on middle school students' views, attitudes, knowledge about SSI, and their scientific literacy. The study uses a pre-test and post-test…

This article reports on the effect of textbook analysis as a tool of teacher professional development on nature of science (NOS) understanding of 10 science teachers in South Africa. The teacher professional development program (TPDP) was based on an explicit reflective methodology of textbook analysis and conducted online due to the Covid-induced…

This study investigates the predictive influences of expectancies and values that may sustain students' dropout intentions in physics as well as gender differences in students' motivation and intention. Eccles's expectancy-value model was used to frame the study. The academic self-concept (expectancy component) and value components focusing on…

Molecular Cell Biology (MCB) should be taught according to the scientific practices, avoiding cumulative and memory knowledge construction, but favoring scientific thinking. A way to achieve this goal is to apply activities involving scientific news, which construct knowledge through significant learning and the development of critical thinking.…

Neuroscience findings offer promising ways to enhance performance in educational settings. Adolescents often experience sleep deprivation, impacting memory processes crucial for learning. The synaptic homeostasis hypothesis (SHY) posits that non-rapid eye movement (NREM) sleep, particularly slow wave activity (0.5-4 Hz), downscales synapses…

In higher education, fostering scientific literacy stands essential, especially in understanding and responding to natural disasters. This research investigates the scientific literacy levels among Physics Education students at State University in Surabaya, Indonesia, focusing on earthquake disaster mitigation. This study uses a qualitative…