We describe a novel experiment for high school students that uses gas chromatography (GC) equipment to demonstrate the principles of chemical quantitation in the context of fragrant compounds. A highlight of the work is the use of inexpensive equipment and tools accessible to the usual high school laboratory. The students use control samples,…

A multifaceted experiment, accessible to students either in an introductory organic chemistry course or in a more advanced laboratory setting, is described for investigating the addition of dichlorocarbene to E- and Z-[beta]-methylstyrenes. The innovative exercise, which integrates elements of synthesis, mechanisms, instrumental analysis,…

An experiment for the synthesis of N-acyl derivatives of natural amino acids has been developed as part of the Distributed Drug Discovery (D3) program. Students use solid-phase synthesis techniques to complete a three-step, combinatorial synthesis of six products, which are analyzed using LC-MS and NMR spectroscopy. This protocol is suitable for…

The stated purpose of this paper is to provide a simple and quick method to assemble pH electrodes using readily available materials. The present assembled electrodes are comparable with commercial pH electrodes, with accuracy for pH determination in the range 2-12. Furthermore, the constructed simple pH electrodes exhibit a fast and stable…

In recent years, video-based lectures have been increasingly used in education as part of flipped classroom approaches, adult education, distance learning, and other applications. Though approaches in video-based lectures have been widely studied, less has been reported in the development of approaches to teach relevant technical skills, such as…

This study explored relationships between students' attitudes toward science and their preferred versus actual experience of cooperative, constructivist-oriented, or direct instruction. The sample consisted of 1334 Chinese middle school students in physics and chemistry classrooms. Results showed that students report experiencing more direct…

The Suzuki-Miyaura cross-coupling reaction, which is one of the most important methods for C-C bond formation in modern organic synthesis, exhibits broad functional group compatibility. A Suzuki-Miyaura cross-coupling protocol is reported that is suitable for demonstrating this compatibility in undergraduate laboratories. In this reaction, two…

The synthesis of substituted 1,4-benzoquinones, a biologically important class of compounds, was developed using [mu]-oxodi(phenyliodanyl) diacetate, a (diacetoxyiodo)benzene-based oxidizing reagent, in order to introduce second-year undergraduate organic laboratory students in their second semester or advanced organic students to increasingly…

Quantum dots (QDs) are considered useful for demonstrating quantum phenomena in undergraduate laboratories due to their monodisperse size and excellent optical properties. Although doping has an increasingly important role in QD fabrication in the semiconductor field, it has rarely been discussed in the context of the undergraduate laboratory. In…

Although fundamental chemistry acts as a prerequisite for fully comprehending imperative aspects of biology, Bielefeld University is one of three universities in North Rhine-Westphalia, Germany that does not require majors or minors in biology education to complete classes in general chemistry, before fulfilling graduation requirements. A study…

Systems thinking approaches underscore a holistic view of the components comprising a dynamic system, including their connections and interdependencies as well as their interactions with other systems. Compelling international calls have been made recently to infuse chemistry education with systems thinking so as to not only better illustrate…

Scientific argumentation is a key means by which students make sense of content and processes in inquiry-based instruction. In scientific argumentation students make a "claim" that they support with "evidence" and provide "reasoning" as to how the evidence supports the claim. Integrating the different aspects of…

A practical approach for synthesizing functional material from waste material is described. The work was carried out by chemistry undergraduate students as a group project. The concepts used mainly in inorganic quantitative approaches were applied to transform an iron-containing material to magnetic iron oxide nanoparticles. The magnetic…

In recent years, researchers have worked diligently to identify more effective means of facilitating student learning. Some promising pedagogical techniques that have emerged include the flipped-class model and test-enhanced learning. These pedagogical strategies have been incorporated into a multitouch book. A multitouch book is a dynamic…

A coherent curriculum that clearly defines sets of ideas that build upon one another to meet desired learning goals can successfully support the development of meaningful understanding across time. This study explores the influence of a coherent curriculum as a systematic approach to aligning and sequencing specific ideas to support students in…