Drawing upon interviews with key actors involved in the development of and support for the Next Generation Science Standards (NGSS) in the United States, this article shows how a potentially controversial reform came to be actively supported by senior educators. We utilize Kingdon's (2003, "Agendas, alternatives, and public policies,"…

A laboratory activity is described for senior high school or first year undergraduate level students that illustrates key concepts linked to extractive metallurgy. This experiment demonstrates preferential binding of a methoxyphenolic oxime ligand to Cu[superscript 2+] in the presence of other transition metal ions in aqueous solution. The…

Knowing the volume of evolved gases is helpful to select an optimal leavening agent for a particular application. The comparison of leavening agents, their reactions through the baking process in the modern and attractive way, is presented here. A gas pressure sensor probe was used to monitor the pressure change due to the carbon dioxide produced…

In the present study, an experimental teaching material using a soundcard oscilloscope developed for science, technology, engineering, and mathematics (STEM) education considering the engineering viewpoint was applied to address student's misconceptions in the alternating current (AC) circuit topic in high school physics. Four experiments were…

A study was conducted on how scientific laboratory lessons contribute to building arguments, both cognitively and socially. The population consisted of 12 second-year pre-service teachers at a college of education specializing in the teaching of biology and chemistry in middle school. The study examines the nature of the arguments students raise…

In 1919, Eddington and Dyson led two famous expeditions to measure the bending of light during a total solar eclipse. The results of this effort led to the first experimental confirmation of Einstein's General Relativity and contributed to create its unique and enduring fame. Since then, similar experiments have been carried out all around the…

Argumentation and modelling are core scientific practices, and studies suggest that incorporating the specific practices in the teaching of science can engage learners. This is a qualitative study of a classroom of 10-12-year-old students working collaboratively in argumentation and modelling. The aim of the study was to explore how primary school…

Over the past several years, we have contributed several articles to "TPT" that focused on a forensics-style reexamination of historical events. In each article, we presented a case study as a pedagogy for teaching topics from introductory-level physics courses. Recently, we assembled our prior work into a series of…

A simple one-dimensional [superscript 1]H NMR experiment that quantifies protein bound to gold nanoparticles has been developed for upper-division biochemistry and physical chemistry students. This laboratory experiment teaches the basics of NMR techniques, which is a highly effective tool in protein studies and supports students to understand the…

The non-major's two-semester organic chemistry course at UPR-RP aims at developing a more integrated and meaningful understanding of the fundamentals of Organic Chemistry. To achieve this goal, we have implemented a novel instructional design that focuses on nine terminal objectives. The nine terminal objectives describe what students should be…

A comprehensive experiment for third-year undergraduate students in pharmaceutical engineering is described. Students had previously completed courses in analytical chemistry, chemistry of natural products, and bioseparation engineering and had background knowledge in purification, quantitative analysis, packed column chromatography,…

Infrared (IR) thermography renders invisible infrared radiation with intuitive coloration in images and videos taken of objects, reactions, and processes. Educators can take advantage of this technology to extend students' sensory perception of chemical reactions or processes that absorb or release heat in rich detail. In theory, IR thermography…

The main purpose of this research is to determine the effect of the volume of concept on the level of understanding the relationship between concepts. The mixed method was used in the research. Volume of concept form, concept map form and puzzle scales were used to collect quantitative data. Qualitative data was collected through a fully…

This paper is about "augmented reality" (AR) and its potentials to support students in handling scientific representations. For this purpose, first representations are examined from a science educational and instructional psychology perspective. After giving a short overview of AR in general and how it can be delineated from…

Instructors expect students to read before class to engage them in using higher-order thinking skills that are critical to performing in group work and engaging in discussions. As many instructors are aware, however, for various reasons many students don't read the assigned textbook. In this study, science news articles were used as prereadings to…