Rock and mineral labs are fundamental in traditional introductory geology courses. Successful implementation of these lab activities provides students opportunities to apply content knowledge. Inquiry-based instruction may be one way to increase student success. Prior examination of published STEM labs indicates that geology labs, particularly…

The possibility of conducting laboratory experiments at home without using commercially available kits, which might also be overly expensive, seems to be a suitable approach for a distance chemistry laboratory. Thus, several hands-on experiments with household supplies have been developed aiming at fostering students' laboratory competencies, as…

Introductory biology courses at most colleges and universities have two components: a lecture and a lab. However, for students who are not majoring in biology and taking the introductory course as part of their general education requirements, the distinct role of the lab has not been clearly articulated. We performed an online modified-Delphi…

Food safety science is an important field due to its practical applications in maintaining public safety and confidence in consumer goods. A significant component of food safety science is the detection and regulation of heavy metals in food. Heavy metals such as mercury (Hg) are of particular concern because of their potential to damage the…

Transparency in learning and teaching (TILT) is a framework designed to enhance student engagement, learning, and overall success. The efficacy of TILT has been demonstrated through positive data, making it a promising method for higher education institutions to implement and adapt. In addition to increasing traditional students' mastery of…

This paper describes a comprehensive review of 31 quasi or experimental research studies from the past decade on the effect of PhET simulations on students' conceptual understanding of physics. Two questions guided the review: (i) To what extent do PhET simulations enhance students' conceptual understanding of physics? (ii) What are the best ways…

Disrupting a gene to determine its effect on an organism's phenotype is an indispensable tool in molecular biology. Such techniques are critical for understanding how a gene product contributes to the development and cellular identity of organisms. The explosion of genomic sequencing technologies combined with recent advances in genome-editing…

A general analysis of reaction mass efficiency and raw material cost is developed using an Excel spread sheet format which can be applied to any chemical transformation. These new methods can be easily incorporated into standard laboratory exercises.

On equilibrium properties of aqueous solutions of sulfuric acid, Julius Thomsen has marked that the heat evolved on diluting liquid sulfuric acid with water is a continuous function of the water used, and excluded absolutely the acceptance of definite hydrates as existing in the solution. Information about thermochemical measurement, a discussion…

In a 2003 issue of the "Journal of Chemical Education," Kniesel and Bellamy describe a timely and pedagogically effective experiment involving breath-alcohol analysis using an FTIR (Fourier Transform Infrared Spectroscopy) spectrometer. The present article clarifies some of the information presented in the 2003 article.

Presents the results of an analysis of science-classroom lab talk which focuses on topics and manner of talk as an approach to understanding the social context of undergraduate lab work. Argues that lab instructors should pay attention to how "scientific" the lab talk is, and to sociability among students. Contains 32 references.…

Reviews the work of the Commission on Undergraduate Education in the Biological Sciences (CUEBS) from 1964 to 1972. Suggests that now is the appropriate time to reassess their efforts, to build on their successes, and to use their experience to attack some of the continuing problems facing biology education. (21 references) (KR)

Presents examples of chemical education research that illustrate changes in focus, method, and direction over the past 50 years. Contains more than 50 references. (WRM)

Summarizes several articles on safety in the science laboratory, an article on the science and history of chocolate, and an article on teaching nuclear physics from an historical perspective. (WRM)

Develops a taxonomy of styles for teaching general chemistry laboratory courses. Differentiates between expository instruction, inquiry instruction, discovery instruction, and problem-based instruction in the laboratory. Reviews research on the effectiveness of the various types of instruction. Contains 68 references. (WRM)