In this study, students' conceptual difficulties about some basic concepts in quantum mechanics like one-dimensional potential well problems and probability density of tunneling particles were identified. For this aim, a multiple choice instrument named Quantum Mechanics Conceptual Test has been developed by one of the researchers of this study…

Lessons and homework problems involving a pendulum are often a big part of introductory physics classes and laboratory courses from high school to undergraduate levels. Although laboratory equipment for pendulum experiments is commercially available, it is often expensive and may not be affordable for teachers on fixed budgets, particularly in…

Many undergraduate institutions are dealing with less-than-prepared students entering the biology major. When the biology department at College of Notre Dame of Maryland analyzed data from five past cohorts of prospective biology majors, it was evident that there was a significant correlation between their success in the introductory course in the…

In this paper, a simple MATLAB-based PC program that enables the computer to function as a replacement for the electronic scalar-counter system associated with a Geiger-Muller (GM) tube is described. The program utilizes the ability of MATLAB to acquire data directly from the computer sound card. The signal from the GM tube is applied to the…

The physics laboratory has long been a distinctive feature of physics education. It has been given a central role in the teaching and learning of physics at school and undergraduate levels in universities. The literature indicates that science educators have suggested that there are academically rich benefits in the learning and understanding of…

School physics rarely stands still for long. Environmental physics is now an option in some post-16 courses in England. The physics of environments, and in particular the built environment, offers a recognizable context in which to see the applications of physics at work. This article considers how a model doll's house might be used to help…

As a newcomer to the Department of Natural Sciences at University of Maryland-Eastern Shore (UMES) in fall 2007, assistant biochemistry professor Jennifer L. Hearne concluded from teaching "Principles of Chemistry I" that the introductory general education course needed a makeover. In addition to alleviating teaching inefficiencies,…

What impact can Web 2.0 technologies, specifically social networking sites, have inside and outside the classroom? While participation within the Facebook community has grown exponentially across college campuses, participation in course-specific WebCT discussion forums has not necessarily followed suit. In response to this disparity, Jacob…

Recent emphasis on the science of food and cooking has been observed in our popular literature and media. As a result of this, a new non-science majors course, The Science of Food and Cooking, is being taught at our institution. We cover basic scientific concepts, which would normally be discussed in a typical introductory chemistry course, in the…

The formation constant of iron(III) complex with glycine (Gly) ligand in aqueous acidic medium (0.2 M HNO[subscript 3], I = 0.2 M at 28 plus or minus 1 degree C) was determined spectrophotometrically in which a competing color reaction between Fe(III) and SCN[superscript -] was used as an indicator reaction. Under the specified conditions Fe(III)…

The technology of podcasting, or creating audio or video files that can be subscribed to over the Internet, has grown in popularity over the past few years. Many educators have already begun realizing the potential of delivering such customized content, but most efforts have focused on lecture-style humanities courses or multimedia arts courses.…

Lactose intolerance is a condition suffered by an estimated 50 million Americans. Certain ethnic and racial populations are more widely affected than others. As many as 75 percent of all African-American, Jewish, Native American, and Mexican-American adults, and 90 percent of Asian-American adults are lactose intolerant. Some populations in Africa…

The experiment described here for advanced inorganic chemistry undergraduate students includes a solvolysis reaction of [CoCl(NH[subscript 3])[subscript 5]][superscript 2+] in nonaqueous (H[subscript 3]PO[subscript 4]) medium, followed by an alternative way of using ion-exchange chromatography based on the capability of changing the charges of the…

Cartoons are part of a much larger effort by chemical educators to introduce activities to enhance learning and student participation. There are a variety of cartoon types used in teaching that have been evaluated and discussed within the chemical education community including caricatures, comics, and concept cartoons. This article focuses on the…

The electrochemical synthesis of transition-metal acetylacetonates described here can form the basis of assisting in the transformation of an entry-level laboratory course into a research-like environment where all members of a class are working on the same problem, but where each member has a personal responsibility for the synthesis and…