Public trust in science and expertise remains a contentious issue. When public trust is analysed, it often simplifies a complex process of information retrieval and interpretation. Questionnaire surveys help us make sense of differences among actors and countries, but they fail to provide a comprehensive analysis of the reasons that lead citizens…

The use of technology in assessment continues to evolve the field of educational measurement. This article reports on development and use of new accessible, technology-enhanced assessments designed to measure the three-dimensional science abilities of middle school students. The assessments were piloted with over 70 teachers and 8,000 students…

Ever since Newton's groundbreaking work on the composed nature of light, additive colour mixing (and its laws) are subject to the interest of physicists as well as other sciences. In this paper, we present a setup for simple lab or home experiments on additive colour mixing and the laws of colour mixing. Students use the screen of a laptop or…

In this work, an alternative Experimental Didactic Kit for teaching resistors, capacitors and "RC" timing circuits was developed, using the Arduino platform technology, which is composed of a microcontroller and peripherals, due to the easy access to available teaching materials, enabling the reproduction of the prototype in the future…

Sixth-grade science students at Gauger-Cobbs Middle School in Newark, DE, had misconceptions about how heat energy moves in the hydrosphere through conduction, convection, and radiation. As a result, students struggled to develop and connect ideas that correctly and completely explained heat transfer in the hydrosphere at the end of the lesson…

This is a study of teachers transition after a professional development (PD). The purpose was to document and characterize the teachers' experiences as they transitioned toward use of the Next Generation Science Standards (NGSS) and more learner-centered teacher practices. The teachers participated in a PD workshop that provided information on the…

Determining how to increase practicing elementary teacher science instruction self-efficacy through ongoing professional development has been a problem in one urban Texas school district. Existing literature indicated science instruction self-efficacy could be built using professional development. However, there is a gap in the literature…

Using Constructivist Grounded Theory (CGT) and reflexive Thematic Analysis (TA) methods, the purpose of this case study was to construct theory about equity for students studying chemistry at public universities in Colorado. Interviews with students (N=12), chemistry instructors (N=9), and equity practitioners (N=9) as well as observations of…

Reading problems among students in Nigeria prompted the implementation of a literacy across the curriculum initiative in a cluster of schools within a district, where all teachers were required to integrate literacy strategies into their lessons. The problem investigated in this study was that the teachers' instruction of science at Beta Schools…

Chemistry outreach has an important role in building trust between scientists, scientific research, and the public. Ensuring that chemistry outreach is relevant and inclusive to diverse participants is necessary to achieve genuine inclusion of individuals from minoritized groups. We describe the design, delivery, and evaluation of an outreach…

This study reported the effects of a research-based laboratory module on students' scientific research, green chemistry, and research skills self-efficacy in a second-semester general chemistry laboratory course. The research-based laboratory module was designed based on the course-based research experience (CURE) model, which features materials…

Socio-scientific issues demonstrate the relationship between science, technology, and society by considering currently unresolved questions. The problem of plastics and their pollution is just one example with important implications for the planet. The aim of this paper is to revisit socio-scientific issues and see them as a way of developing…

This paper describes the design of an instrument to assess secondary school students' proficiency in structure-property reasoning (SPR). Design criteria for the instrument required that it should be based on a comprehensive model for structure-property reasoning, assess both reproductive and productive use of structure-property reasoning, be…

The ability of students to perform quantitative analysis is a fundamental aspect of analytical chemistry courses and laboratories. In this laboratory experiment, students quantitatively analyze both liquid and solid samples through the use of internal standard calibration and ATR-FTIR spectroscopy. Using a problem-based approach to selecting their…

As educational accountability pressures and science teacher attrition rates within American public-school systems continue to rise, so does the need for improved reform-based professional development (PD) opportunities that allow science educators to challenge their pedagogical beliefs and teaching practices. This qualitative case study explores…