Cell biology research methods and techniques is one of the training courses for graduate students before enter the laboratory in many universities. However, due to the limited time of experimental teaching while the teaching contents are increasing, choosing suitable teaching content has always been a challenge faced by experimental teaching.…

It is difficult for students to learn the concepts of chemical laboratory safety education from actual experiences because the traditional teaching model prohibits students from performing dangerous operations. Therefore, this study develops a novel mixed reality-based chemistry experiment learning system (MRCELS) to allow learners to conduct…

The goal of this study was to assess student's laboratory technique learning during online laboratories in response to the transition online caused by COVID-19. From Summer 2020 through Fall 2021 our General Chemistry 1 laboratories were completely online using at-home lab kits and 3 h weekly web conference sessions. Starting Spring 2021 select…

This paper describes our bench-scale student experiment with a continuous stirred tank reactor (CSTR). The conditions under which the CSTR approaches ideal mixing behavior are investigated using CaCl[subscript 2(aq)] as a tracer. The data are derived from transient solution conductivity measurements of the vessel effluent. Adjustable parameters…

Safety skills are recognized as essential lab skills for students, necessitating the incorporation of active learning of chemical safety education into undergraduate curricula. Meaningful engagement of students in training and education on principle-based lab safety skills, chemical information sources, and general safety instructions is crucial…

Research exploring the advantages and limitations of different laboratory modes on student learning is critical so that engineering instructors can design hybrid/blended laboratories to maximise student learning. However, limited research explores the impact of take-home laboratories on student learning. This article documents the impact that the…

Titration is an important experimental skill that every chemistry educator and learner must master. Titration is often the method of choice in the science laboratory courses in secondary and postsecondary schools. During acid-base titration, chemistry learners are always told about salt formation. However, a practical visualization of the salt…

During COVID-19 remote instruction, instructors were tasked with providing students with authentic laboratory experiences in an out-of-classroom environment. One solution developed for our introductory general chemistry laboratory involved students critiquing readily available technique videos to distinguish between correct and incorrect…

Occupations in science, technology, engineering, and math (STEM) are growing faster than all other fields in the United States. While this is exciting, there is concern that many of these positions will go unfilled, as students in STEM are leaving their educational pursuits at an alarming rate. The following two studies provide an in-depth…

This study aimed to determine the effect of using a virtual anatomy system (VAS) on student learning with regard to reproductive system with respect to the acquisition of misconceptions. This study used an experimental method by comparing the results of the class learning using virtual laboratory media with a control class. The result showed that…

We present a simple smartphone-based protocol for the estimation of the critical micelle concentration (CMC) of surfactants. The protocol is based on contact angle measurements from the smartphone-captured images of differently concentrated surfactant solution droplets mounted over a naturally existing or chemically synthesized superhydrophobic…

A laboratory experiment was designed to introduce the practical application of biocatalysis in Bachelor and Master courses in biotechnology and medicinal chemistry, respectively. To this aim, the lipase from "Candida rugosa" was characterized (protein concentration and activity), immobilized on a carrier (by hydrophobic adsorption), and…

Contribution: This article proposes a low-cost and mobile device-based learning support system for the stepper motor, which provides Web-based remote laboratory. This system allows young engineers to learn about rotational principles, control methods, and programming in stepper motors. Background: Familiarity with electrical machinery, such as…

The reaction between hydrochloric acid and calcium carbonate to produce carbon dioxide gas is a popular and engaging experiment to illustrate chemical reactions that result in the production of gases. It also provides a useful model for teaching concepts related to the effects of concentration on reaction rates. Although a prepared hydrochloric…

This article describes low-cost well plates that can be used as alternative kits for microscale experiments. Although ordinary well plates are useful and convenient for microscale experiments, they are not cheap. We have developed well plates composed of plastic bottle caps with approximately 3cm diameter and cardboard containers. Plastic bottle…