Syntheses of analogues of historical indigo and Maya blue pigments using an inquiry-based approach are presented. Derivatives of indigo were synthesized (in particular Tyrian purple) and used as vat dyes for dyeing cotton or wool fabrics or mixed with a sepiolite clay to create new hues or colors of Maya blues using a green chemistry hydrothermal…

Common over-the-counter medicines can be an exciting entry point for introducing students to the interesting chemistries that they encounter in their daily lives. In this inquiry-based activity, students are tasked with using a list of given supplies and information about four medications (Aspirin, Tums, Pepto-Bismol, and Tylenol) to design three…

Water electrolysis, a well-known and simple experiment, confirms that a water molecule comprises hydrogen and oxygen atoms. In this experiment, hydroxide or hydrogen ions generated from each electrode were identified using an indicator based on the assumption that electrodes, electrolytes, and indicators do not participate in the water…

At its simplest, paint pouring is the mixing of paints with lower density and viscosity liquids and then pouring them onto a surface for an aesthetic artifact. Using active art as a teaching tool, middle school students were engaged in a paint pouring activity to study the influence of the interdisciplinary combination of chemistry and art topics…

Since 2012, when triboelectric nanogenerators (TENGs) were first reported by Wang and co-workers, various applications have taken advantage of their ability to transform mechanical energy into electrical energy. TENG applications cover many fields, including electronics, physics, materials science, and engineering. The differences in the language…

This paper describes the creation of a theme-based first quarter, of a two quarter sequence, general chemistry laboratory course following an argument driven inquiry format and employing specifications grading. The course contains four, two-week projects investigating the chemistry of a popular sports drink. The sugar content, dye concentration,…

Over the past several decades, science education reform has emphasized moving from content driven courses to more interactive, inquiry-based methodologies. This change has been supported by research by Chi (2009) and represented as three-dimensional learning in the Next Generation Science Standards (NRC, 2013). The typical structure of many high…

In the context of inquiry-based learning, it is widely acknowledged that fostering teachers' skills in formative assessment is vital for enhancing student learning. This study examined the impact of a formative assessment-based inquiry model on science student understanding and explanations. A quasi-experimental approach that adopts the design of…

Atomic orbitals represent an essential construct used to develop chemical bonding models, upon which other more advanced chemistry topics are built. In this article, we share a series of active-learning activities and a gamified approach to develop students' representational competence about atomic orbitals and to engage students in learning the…

Students' expectations for their laboratory coursework are theorized to have an impact on their learning experiences and behaviors, such as engagement. Before students' expectations and engagement can be explored in different types of undergraduate chemistry laboratory courses, appropriate measures of these constructs must be identified, and…

The inquiry-based approach is a teaching strategy that facilitates students learning scientific concepts and about the nature of chemistry through experimental research, allowing them to participate in chemistry classes as researchers. The methodology employed in chemistry learning in Brazil is based on the traditional teaching approach, and…

This study developed a complexometric titration simulation program based on LabVIEW. With built-in approximation and rigorous algorithms, the program can easily simulate and plot a single or a group of complexometric titration curves. On the basis of this program, we developed and implemented an online course to guide undergraduates to (i) compare…

As the most widely used manufactured material on the planet, concrete provides an excellent and underused context for chemistry practical activities. Although concrete's importance as a building material cannot be overstated, the traditional preparation of concrete is associated with enormous greenhouse gas emissions as well as unsustainable use…

Scanning probe microscopy such as atomic force microscopy has become increasingly integrated and relevant in undergraduate laboratory investigations. As the "hands and eyes of the nanoworld", atomic force microscopes (AFMs) continue to be used to innovate the nanowriting process for data storage and in the exploration of novel materials…

Inquiry is one integral part of science learning. Understanding the underlining meaning and the complete procedures of inquiry-based laboratories would be beneficial to student teachers' future work. Therefore, it is necessary for student teachers to perform inquiry-based laboratories and know how to demonstrate them to school students. However,…