A dual-function student-crafted instrument is described as part of a laboratory activity aimed to teach both the principles and practical aspects of absorption spectroscopy to secondary and introductory undergraduate students. Using minimal changes in an arrangement that is based on interlocking bricks and low-cost components, both a fluorometer…

In the Spring 2021 Organic Chemistry Lab class at Penn State Schuylkill, COVID-19 restrictions and uncertainty required a flexible plan. The first 4 weeks of 15 were fully remote, and videos of standard organic techniques were used, followed by an exam. In the next 5 weeks, some students were in the lab and some were remote. A document camera was…

Engaging students in scientific practices has become an important pedagogical component in STEM education, although its implementation in laboratories is still emerging. This paper uses three types of guiding questions to facilitate scientific practices in introductory and analytical chemistry laboratories. What makes our instructional model…

This study aimed to study quality of theses of master education program in teaching science and mathematics, Mahasarakham University, Thailand which conducted and published during 2016-2019. A 37 theses were studied through systematic approach. Data were collected by 24 questionnaires of theses analysis anecdotal. Mean, standard deviation, and…

Access to quality science and math instruction remains a civil rights and social justice issue as the scientific and technological divide widens (Tate 2001; Moses and Cobb 2001). Students without access to rigorous science instruction have been and will continue to be left behind. This inequality is salient for students in marginalized communities…

In this information era, there is an urgent need for tighter integration of bioinformatics and experimental biology. The enormous amount of data generated by biological experiments calls for extensive computational analysis. Many bioinformatics textbooks at present mainly focus on theories, which hinders the vigorous development of scientific…

In this paper, we present a simulation of artificial selection of maize that can be used as a bridging case for the subsequent introduction of natural selection in school. The proposed simulation takes up essential biological elements but also has a cultural meaning for the inhabitants of some regions of Latin America. After implementing a test of…

Genetics is an area that is increasingly important in people's daily lives. Despite this, its teaching/learning is among the most challenging topics in biology. Several instruments were created over a number of years to ascertain the quality of teaching and learning genetics. In our study, we created a specific instrument to investigate Mendelian…

School closures in the wake of the COVID-19 pandemic led to kids asking pertinent questions about why they were not in school, especially some students suffering financial hardship. Virtual classrooms became the mundane venues for students to piece together the pandemic puzzle and unpack unseen inequities. This article examines disparities that…

In this paper, we propose and describe a new approach, named BarcodingGO, to teach environmental DNA and bioinformatics concepts to undergraduate or graduate students in molecular biology-related fields. The learning pipeline proposed here aims to solve a simulated environmental monitoring problem, in which a biodiversity survey of a particular…

A large body of research shows that using interactive engagement pedagogy in the introductory physics classroom consistently results in significant student learning gains; however, with a few exceptions, those learning gains tend not to be accompanied by more expert-like attitudes and beliefs about physics and learning physics. In fact, in both…

Many physics projects recently designed for high school teachers use Arduino as the main tool for managing sensors and data acquisition. This is a low-cost integrated development environment programmed with a simplified version of the C++ language. In comparison, the Raspberry Pi 3 platform, which also allows for the design of physics projects,…

This experiment combines analytical techniques of solid-phase extraction (SPE) and gas chromatography quadrupole time-of-flight mass spectrometry (GC-QTOF-MS) to determine organochlorine pesticides (OCPs) in river water as a means to develop and improve student understanding of the use of GC-QTOF-MS for qualitative and quantitative analysis. In…

This work aims to evaluate the evolution of chemical bonding concepts of high school students at public schools in southern Brazil. For this, we built the epistemological profile of each student who took part in a teaching-learning sequence (TLS) about this topic, based on the foundations of Bachelard's theory. Following the principles of the…

Organic electrosynthesis is an increasingly popular tool for driving and probing redox reactions. Recent advances in this field often employ an electrocatalyst to enhance the selectivity and efficiency of electrochemical reactions. A laboratory experiment was developed to introduce students to relevant mechanistic techniques in electrochemistry…