A simple hands-on model for illustrating the concept of isotope dilution analysis (IDA) has been devised. The model consists of two sets of beads of different sizes, with one set representing atoms of the analyte and the other set representing solvent water molecules. Phase separation is mimicked by sieving the beads, and the results are detected…

The goals of the study were as follows: i) to design an active science learning activity on stoichiometry for grade 10 students, ii) to evaluate the academic achievement of grade 10 students after receiving an active science learning activity on stoichiometry, and iii) to investigate the perspectives of grade 10 students regarding an active…

A flash purification system using prepacked cartridges containing different silica weights and particle sizes was employed to demonstrate the influence of column characteristics on chromatographic resolution. This chromatographic experiment was a helpful introduction to chromatographic courses where the influence of particle sizes was addressed…

The application of the Study and Research Path (SRP) methodology for learning general chemistry, a fundamental course often found in the first-year curriculum of many technical degrees, is investigated. In recent years, SRPs have emerged as interesting inquiry and project-based teaching formats. In an SRP, the search for an answer to a generating…

This study consists of a longitudinal research using an active methodology to teach the contents of the periodic table to high school students, based on project-based learning and WebQuest. The aim of this investigation is to study the relationship between learning the periodic table and the type of strategy that students choose to achieve the…

Artificial photosynthesis is a promising approach to generate commodity chemicals using abundant chemical feedstocks and renewable energy sources. Despite its importance, affordable and effective hands-on classroom activities that demonstrate artificial photosynthesis and teach key concepts, especially for primary school students, are lacking.…

Integrated science, technology, engineering, and mathematics (STEM) approach has been implemented all around the world. STEM approach highlights the integration of different STEM disciplines, the use of daily-life problems, and engineering design process, which provides a context for students to learn knowledge of STEM disciplines and apply the…

This article describes a laboratory course designed for nonmajors with a focus on food chemistry. The course can be delivered in a traditional format or in a fully remote, asynchronous format. The course is designed for students to develop an understanding of how chemists view the world and how chemists generate knowledge. Food chemistry was…

The Prospect Park Biodiversity Project was a SENCER collaboration project between the Departments of Biological Sciences, Chemistry, and Mathematics at the New York City College of Technology. The goal of this project was to enhance students' participation and learning in STEM disciplines through a civically engaged framework. The project utilized…

The main purpose of this study is to explore the epistemological problems underlying pre-service chemistry teachers' aims in using practical work, "i.e.," individual or small group object manipulation or observation, in school science. Twenty-two pre-service chemistry teachers participated in this study. Qualitative data collection tools…

Laboratory experiences are a key and integral part of the chemistry degree that are intended to provide the students the necessary training for laboratory work and improve their scientific reasoning/research abilities and their understanding of the uncertainty in experimental measurements. Despite the unquestionable capacity of hands-on laboratory…

The Flavor Perception Game was designed with the goals of developing an interactive and hands-on activity, providing a platform to review chemical senses of the five tastes, promoting student investment in the course material, and providing a basis for discussion on chemical senses of the five tastes. Knowledge of taste sensation is useful for…

Mass spectrometry is frequently introduced to undergraduate students as an instrument for both qualitative and quantitative chemical analysis. One of the most common uses of mass spectrometry (MS) is to deduce or confirm a compound's chemical formula, by relying on high-resolution accurate-mass measurements. However, like all forms of instrumental…

A hands-on design activity named "electrochemistry designette" that incorporates design thinking with the aims to strengthen electrochemistry concepts, introduce prototyping ideas, encourage student class participation, and foster creativity is presented. This active learning activity, which lies at the interface of design and…

Students entering into a quantitative analysis course often struggle with connecting theoretical aspects of concepts from lecture to hands-on applications in the laboratory setting. A one-semester quantitative analysis course was redesigned to integrate active learning with a project-based curriculum that incorporated structured review of…