Chromatography is the most common analytical technique able to identify and quantify a wide gamut of substances in food, environmental, forensic, pharmaceutical, and many other kinds of real samples. We propose a simple drama science activity: students embody different compounds wearing emblems of different colors and dramatize their…

An approach to online laboratory exercises for analytical chemistry students with demonstrated practical exercises through the use of remote-controlled gas chromatography (GC) instrumentation is discussed. The approach allows for a practical-based learning activity to be carried out by students who are unable to attend in-person laboratory…

By organizing an extracurricular seminar, based on the analysis of the intermolecular dispersion action in normal alkanes, a new topological index (named "Intermolecular Interaction Index (IMI)") was proposed to express the intermolecular dispersion force. The IMI has an excellent linear relationship with the boiling point (T[subscript…

One of the greatest challenges in a student's ability to successfully complete reactions in organic chemistry is the ability to differentiate between reactions that have similar structures and proceed through similar reaction mechanisms. Featured in this article is an interleaved reaction review activity called a reaction web. Students are divided…

We present two simple classroom exercises designed to explain challenging concepts in conformation for students beginning organic chemistry. These macroscopic demonstrations serve as analogies to bridge students' understanding of flat two-dimensional drawings to real three-dimensional molecules. In the first demonstration, an apple is drawn from…

Stimulating interest in science at an early age is important for STEM education. This work details an educational activity utilizing the anthocyanins found in butterfly pea flowers ("Clitoria ternatea"). This activity was developed for use in official classroom settings, online, and/or at-home with parental or educator guidance. Primary…

The COVID-19 pandemic has introduced challenges to delivering laboratory-based STEM curricula. This study evaluates students' learning experience in a synchronous team design activity within the laboratory component of an undergraduate Computer Engineering course during the pandemic. Using the EduPad digital platform, students collaborated in…

The traditional treatment of the electric circuit in textbooks can be criticized in at least three respects: A) Knowledge of the global aspects of the electric circuit as a system is essential for a deeper understanding. However, this is not sufficiently emphasized. B) The presentation of the term "potential difference" or…

Science instruction is a critical aspect of early learning. Teachers can support young children's learning about scientific concepts through the use of the Universal Design for Learning (UDL) framework, which is a proactive approach to instructional planning that helps ensure success for all learners. This teaching techniques article offers…

The Wiggers diagram showing simultaneous events of the cardiac cycle in composite graphs is one of the most intimidating figures students encounter in their study of physiology. This paper describes a discovery learning activity that walks students through the construction of the Wiggers diagram by focusing on the core concepts of blood flow down…

Children offer a range of views when they begin to discuss healthy lifestyles, often connected to things they believe people should or should not do and foods to avoid. This article shares the author's reflection on recent conversations with six children who were asked to consider what people do and what they eat to have a healthy lifestyle.

Thermal cameras have shown to have utility in secondary school classrooms and undergraduate courses. In this paper, the author argues for their potential in the primary school classroom and presents a range of activities that can be undertaken with thermal cameras (or supplied images). With limited access in mind, the activities in this paper have…

The activity proposed in this study aims to investigate the equilibrium between the liquid and vapor phases in a mixture of water and acetic acid, both of which are volatile substances. High school students can easily determine the composition of the liquid phase and its corresponding vapor phase at equilibrium using a simple and conceptually…

A symmetry activity using student-built models was developed in line with faculty-developed pedagogical goals and a collaborative learning framework. The activity took place in a 3-h laboratory portion of an upper-division inorganic chemistry course. It required students to identify symmetry elements for seven molecules using common 2D…

Cyclopropane can be hydrogenated to produce propane under moderately high temperatures ([tilde]175 [degrees]C). Using a nanoparticle palladium catalyst, undergraduate students can explore the reaction and draw conclusions regarding the conditions for reaction. When deuterium is used, conclusions pertaining to the reaction mechanism are possible.…