In this paper, we report an experiment intended as a tool to introduce chemistry and materials science students to several chemical concepts through the determination of the best experimental conditions for the formation of calcium oxide (lime) from a source of high content of calcium carbonate (eggshells). Thermal gravimetric analysis (TGA),…

An experiment involving a moisture-sensitive synthesis and spectroscopic characterization suitable for the advanced inorganic laboratory course is presented. The acid-base complex ammonia borane (AB) is synthesized from the heterogeneous reaction between sodium borohydride and finely ground ammonium sulfate in tetrahydrofuran solvent. AB is…

Clustered regularly interspaced short palindromic repeats (CRISPR) are a revolutionary tool based on a bacterial acquired immune response system. CRISPR has gained widespread use for gene editing in a variety of organisms and is an increasingly valuable tool for basic genetic research, with far-reaching implications for medicine, agriculture, and…

The Enhanced Virtual Laboratory (EVL) is the product of a Department of Defense grant to enhance outreach, research, and education for cyber security. Through web-based laboratories, EVL allows users to remotely experience interactive content with virtual machines inside a modern web browser providing constructivism-based, student-centered,…

Although the teaching of mechanics at advanced K12 levels often starts with a brief introduction to physical quantities and units, the nature and function of measurements in physics and their inherent uncertainty are hardly ever discussed. The laboratory is mainly used to illustrate the theoretical principles taught in class. This paper presents a…

Teaching assistants (TAs) are crucial components of laboratory teaching and learning processes and much research has been devoted to developing their teaching capabilities. However, much of this research has involved transmitting information about what good teaching is to TAs. This research study sought to employ an alternative way of catalysing…

This study demonstrated that the constant average speed of a dynamic car could be measured and calculated using the smartphone magnetometer. The apparatus setup was built using a dynamic car, a linear track up to 1.50 m, a bunch of magnets, and a smartphone magnetometer application. The smartphone magnetometer application, 'Physics Toolbox Suite',…

This work describes the development and evaluation of a two-session laboratory class based on Tet-on technology and sex determination in the fruit fly "Drosophila melanogaster." The Tet-on system allows conditional control of gene expression, when doxycycline is applied. A laboratory exercise has been developed to illustrate how the…

Imagine you are an instructor in a STEM education lab or makerspace. It is early in the day, and students are working on an engineering design challenge using hand and power tools. You are circulating around the classroom supervising and assisting students. Suddenly a student yells that a classmate is bleeding. You rush over to find the student's…

The case study approach provides students with a better appreciation of how scientists solve problems and conduct themselves in the "real world". When applied to the undergraduate chemistry laboratory, this approach also challenges critical thinking skills and creativity in ways "cook book" experiments very often do not. This…

Ongoing changes to medical education curricula in the United States require continued evaluation of best practices for maintaining and enhancing anatomical education in medical schools. The purpose of this study was to identify the impacts of incorporating an alternating dissection schedule, peer teaching, and self-directed learning (SDL) in the…

Students use causal reasoning in their everyday lives to generate hypotheses as to why an event occurred, or to create predictions about future events. Also, causal reasoning skills are critical in the laboratory setting and are needed to (1) look for patterns in collected data, (2) determine if relationships exist between variables, and (3)…

The study focused on the effect of teams-games-tournament (TGT) on mathematics performance, behavioral engagement, cognitive engagement, and motivation to learn mathematics of Grade 8 students. Experimental and descriptive methods of research were utilized. Findings revealed that there was no significant difference in the pre-test results of the…

Student writing center use has been associated with positive academic outcomes, yet less attention has been paid to what, exactly, influences their participation. The researcher surveyed 434 community college students on a range of demographic and academic variables, as well as their level of self-efficacy in writing, to predict their writing…

Enhancing student employability is a key aspect of any chemistry-based degree; however, embedding such activities in the curriculum is often challenging. Placements (internships in the USA) or experiential visits are the most widely used approach, but these are not always inclusive. Work-integrated learning (WIL), the practice of combining…