Despite the efforts from the International Union of Pure and Applied Chemistry (IUPAC) and from chemistry educators, misconceptions in the classroom and among professionals arise from the inherent complexity of chemical language and the remaining traces of the historical development of chemistry as a science. In order to improve the learning and…

Keto-enol tautomerization is paramount to understanding the mechanisms involved in many organic reactions and biochemical transformations. Isomerization of an enol to a carbonyl compound is typically introduced during the discussion of the acid-catalyzed electrophilic addition of water to alkynes. The tautomerization of carbonyl compounds to enol…

A simple, safe, and easy demonstration of the reaction of sodium peroxide with water is presented. The reaction is performed in a plastic bottle by adding water to sodium peroxide supported in a rubber "thimble"; oxygen is detected by the reignition of a glowing splint, while the generation of sodium hydroxide is indicated by…

The emerging field of genomic medicine offers an opportunity for biology and anatomy teachers to bring the topics of DNA, genetics, molecular processes, and evolution together into one experience. Through the genomic medicine paradigm, students see the unbroken connection between small biological topics such as mutations and their potential…

Interest in the gender gap in the physical sciences has been ongoing for a number of years. This study aimed to explore differences in gender based on self-perception. The use of a post-examination survey was used to examine the role of gender in grade perception in chemistry courses over a several-year period. This included courses for…

Entropy and the second law of thermodynamics have long been identified as difficult concepts to teach in the physical chemistry curriculum. Their highly abstract nature, mathematical complexity and emergent nature underscore the necessity to better link classical thermodynamics and statistical thermodynamics. The objectives of this systematic…

Design activities are increasingly used in science, technology, engineering and mathematics (STEM) education. Guiding students during these activities can be challenging for STEM teachers, who may be inexperienced in the field of design. In this study, we focused on a case of three chemistry teachers who implemented design projects in their…

Genetics is a fundamental topic in Biology, yet its abstract nature presents challenges in the learning process. Effective teaching of genetics concepts requires appropriate instructional approaches to facilitate student understanding. The success of learning outcomes depends on various components, including teachers, students, learning…

To effectively demonstrate the transformation of ethanol into acetaldehyde, a simple, low-cost, and eco-friendly reaction demonstration was designed, in which a Y-shaped tube served as the reactor, condenser, and detector with the help of specific reagents. The ethanol was added via a transparent elephant nose spray bottle fixed to the top of the…

Undergraduate learning assistant (ULA) programs are widely recognized for their positive impact on student engagement, academic performance, and classroom inclusion in large-enrollment STEM courses. However, far less attention has been given to the professional development of the ULAs themselves. This perspective paper accompanies the article…

In the Next Generation Science Standards, energy is considered a "crosscutting concept" that bridges disciplinary boundaries and unites scientific disciplines. I examine how energy is represented in physics, biology, and chemistry contexts, using the reaction of molecular oxygen with sugar as an exemplar, and argue that disciplines…

To science instructors, it may seem obvious that understanding cell theory is essential for understanding how some diseases spread and can be treated. For students, these connections are often unclear at best. For some students, this knowledge might help propel their interest in life science and keep them motivated to engage and persist even when…

This systematic literature review examines how experimental design is taught in chemistry education by using the PRISMA 2020 methodology. The review aims to identify research trends, analyze pedagogical approaches, and examine the pedagogical strategies and methods employed in this process, particularly concerning the preparation of future…

Laboratory experience is vital to undergraduate science education. It allows students to observe and conduct engaging experiments to enhance their skills and literacy, helps them retain knowledge, and deepens their understanding of related content covered in lectures. This paper reports a 4-week undergraduate laboratory exercise on…

This study is part of a larger project on culturally and linguistically responsive instruction for multilingual learners (MLs) in biology (CLIMB), aimed at enhancing MLs' engagement in science practices, biology content, and language development. We developed the CLIMB observation protocol to capture how teachers implement responsive instruction,…