Traditional Hands-on Laboratories Research Articles

Teachers’ Experiences with the Use of Virtual Laboratories in the Teaching of Physics in Rwandan Secondary Schools: A Survey Design

Laboratory experimentation providing students with hands-on experiences can greatly enhance the teaching and learning of physics. However, traditional hands-on laboratories are very expensive, limiting the possibilities for practical activities. In addition, limited time for laboratory practices prevents teachers and students from conducting laboratory activities properly. A possible solution to these limitations could be the use of virtual laboratories (VLs). The present study was conducted to explore the availability of teaching resources to support experimental work, the use of these resources including VLs and the challenges teachers face in using VLs. An online survey with 107 secondary school physics teachers was used to collect data. The study is framed by the Concerns-Based Adoption Model for teacher use of curriculum innovations. Regarding VLs, a mere 6% of teachers reported regular use, revealing a significant gap in adoption. Challenges identified included a lack of awareness, limited information and communications technology tools and insufficient supporting resources. Cross-item analysis revealed that only 25% of 107 teachers reported having a well-equiped physics laboratory, 45% work without a physics laboratory but with science kits or improvised materials, while 30% have no access to a physics laboratory, science kits or improvised local materials. Thus, for teachers without access to a physics laboratory, science kits or improvised local materials, VLs represent a crucial opportunity to provide learners with a complete laboratory experience. The study recommends tailoring continuing professional development support to address teachers’ concerns regarding the use of VLs. This includes enhancing awareness and providing information for teachers without access to well-equipped physics laboratories, while addressing management concerns for those with or without such resources.

Modeling novel physics in virtual reality labs: An affective analysis of student learning

[This paper is part of the Focused Collection on Instructional labs: Improving traditions and new directions.] We report on a study of the effects of laboratory activities that model fictitious laws of physics in a virtual reality environment on (i) students’ epistemology about the role of experimental physics in class and in the world; (ii) students’ self-efficacy; and (iii) the quality of student engagement with the lab activities. We create opportunities for students to practice physics as a means of creating and validating new knowledge by simulating real and fictitious physics in virtual reality (VR). This approach seeks to steer students away from a confirmation mindset in labs by eliminating any form of prior or outside models to confirm. We refer to the activities using this approach as Novel Observations in Mixed Reality (NOMR) labs. We examined NOMR’s effects in 100-level and 200-level undergraduate courses. Using pre-post measurements, we find that after NOMR labs, students in both populations were more expertlike in their epistemology about experimental physics and held stronger self-efficacy about their abilities to do the kinds of things experimental physicists do. Through the lens of the psychological theory of flow, we found that students engage as productively with NOMR labs as with traditional hands-on labs. This engagement persisted after the novelty of VR in the classroom wore off, suggesting that these effects were due to the pedagogical design rather than the medium of the intervention. We conclude that these NOMR labs offer an approach to physics laboratory instruction that centers the development of students’ understanding of and comfort with the authentic practice of science. Published by the American Physical Society 2024

Investigating the Higher Education Students’ Perception of an Interactive DC Motor Simulator

This study investigates the perceptions of higher education students regarding an interactive DC (Direct Current) motor simulator, shedding light on the evolving landscape of virtual education. By utilizing five aspects of learning dimension, visual elements, software functionality, usability, and portability of a four-point Likert scale questionnaire, the research uncovers a generally positive reception of the simulator among students, who view it as a valuable complement to traditional hands-on laboratories, enabling self-paced learning and offering repeatable experiments in a safe environment. Nevertheless, our research highlights notable concerns, such as challenges related to user interface design and pre-installation software. These findings offer crucial insights into the strengths and limitations of a DC motor simulator in higher education, providing guidance for educators and instructional designers striving to optimize digital learning experiences.

Design and Structure of an Electronic Switching System for Remote Circuits Structuring and Online Measurements

this paper presents design and structure of an electronic switching system for remote circuits structuring through internet, where the possibility of building circuits from scratch while conducting electrical measurements at any point of built circuits by online experimenters. This switching system enables to interconnect between electrical and electronic components in different combinations of circuits while providing an online environment highly approximated to physical environments of traditional hands-on laboratories in terms of manipulating measurement instruments and building experimental circuits. This paper also presents results of deployed topology for remote exploit of this switching system along with results of its deployed online engineering experiments.

ReImagine Lab: Bridging the Gap Between Hands-On, Virtual and Remote Control Engineering Laboratories Using Digital Twins and Extended Reality

Practical work is one of the most important instructional tools in control engineering. To address concerns linked to the cost and space requirements of traditional hands-on laboratories, technology-enabled laboratory modes, such as virtual, remote, and take-home laboratory modes are proposed. Each of these alliterative laboratory modes has its own set of benefits and emphasizes a distinct learning goal. Furthermore, due to lockdown and physical proximity restrictions imposed by policies in response to the COVID-19 pandemic, the employment of these alliterative laboratory modes has been quickly increasing. The laboratories’ development, operation, and maintenance become more fragmented as a result of these many possibilities. In this study, we propose “ReImagine Lab” as a framework for leveraging digital twins and extended reality technologies to streamline the development and operation of hands-on, virtual, and distant laboratories. By increasing the level of interaction, immersion, and collaboration in technology-enabled laboratory forms, this framework intends to boost student engagement. The benefits of this framework are demonstrated by examining several use cases, and a 37-person “system usability study” is conducted to assess the usability of virtual laboratories employing desktop computers and immersive virtual reality.

Student Perceptions of Remote Chemistry Laboratory Delivery Models

The COVID-19 pandemic of Spring 2020 saw chemistry instructors across the globe working to deliver traditional hands-on laboratory learning within a remote learning environment. This study focused on the student perspective on remote laboratory delivery models across 13 Fall 2020 chemistry courses with students from all four years of undergraduate study and varying declared majors. For those students who were able to experience in-person laboratory experiments, the majority indicated that they were of high value to their overall learning experience. Specifically, the students noted that the value of the in-person experiential laboratory learning was tied to their ability to learn and practice their technical skills while putting the theory learned in class into practical context and application. Remote laboratory alternatives in the form of video-recorded experiments and online simulations were seen to be less valuable to the overall student learning experience. While students indicated that they highly valued in-person laboratory experiences and would like to see them continually implemented within their learning experiences, careful design and implementation of remote alternatives may provide meaningful alternatives when in-person laboratory instruction is not possible or perhaps enhance already existing laboratory curricula.

A comparison of non-traditional online and traditional wet-lab experiences in human anatomy and physiology: An innovative approach for pre-licensure nursing education

BackgroundThe contributions of student laboratory experiences to student learning in pre-licensure science classes are not well understood. Despite the generally accepted premise that traditional hands-on laboratory experiences are essential to knowledge construction and superior to non-traditional online experiences, the literature suggests that both experiences promote equal levels of student learning. ObjectivesWe compared academic performance of students enrolled in a Human Anatomy and Physiology II course with hands-on laboratory to that of students enrolled in the same course but with online laboratory by examining several measures of student learning. Design and participantsThis was a quasi-experimental study of undergraduate students aged 18–22 years enrolled in equivalent human anatomy and physiology courses on two separate campuses of a private research university in the United States. One course was associated with hands-on laboratory while the other course was associated with online laboratory. MethodsThe Human Anatomy and Physiology Society standardized exam was administered as a pre-test/post-test assessment at the beginning and end of the academic year. Lecture exam scores, laboratory exam scores, and overall course grades served as measures of student learning. Comparisons of student performance between hands-on and online laboratory groups were made using t-tests. ResultsStudent performance on the pre-test and overall course grades from Human Anatomy and Physiology (part I) were not different between groups. While students in the online lab group did earn significantly higher Human Anatomy and Physiology (part II) course grades, their performance on lecture exams, laboratory exams, and the post-test assessment was not different. ConclusionsStudents in a pre-licensure prerequisite course with online laboratory demonstrated mastery of basic science concepts equal to or better than students in the same course with traditional hands-on laboratory. Online laboratory experiences may represent an appropriate, accessible and cost-effective teaching modality for pre-licensure coursework.

Guideline to Safety and Security in Federated Remote Labs

The interest of the educational community in the laboratory- (lab) based education has grown steadily. As remote labs have started to be a reliable alternative to traditional hands-on labs, security and safety issues are becoming increasingly important, as their interconnected nature raises new and challenging issues. The complexity increases when multiple institutions are involved in a federated lab infrastructure. This paper provides a guideline for assessing safety and security in federated labs following the VDI/VDE 2182 guideline and verifies the concept based on remote labs in three different academic institutions.

Assessing Affective Differences between a Virtual General Chemistry Experiment and a Similar Hands-On Experiment

To date, few general chemistry laboratory studies have included affective measures despite calls for more research on aspects of this domain. This shortage of studies may be partially due to the scarcity of affective measures that have been designed for, or tested in, the college laboratory setting. To provide measures for use in this environment, several existing affective scales were adapted for this new context. Before data from the scales were utilized to study the environment, evidence was provided for the validity and reliability of the data generated from them. Once sufficient evidence was provided, it was possible to determine affective differences between students completing a Beer’s law experiment in the traditional hands-on laboratory (control group) and a similar experiment in a virtual environment (treatment group). To assess expected differences between environments, scales for anxiety, emotional satisfaction, intellectual accessibility, usefulness of lab, equipment usability, and open-endedness of lab were selected. To account for potential between-student differences, scales for feeling-related initial interest and value-related initial interest were selected. Overall, students who completed the virtual experiment scored significantly lower on the emotional satisfaction, intellectual accessibility, usefulness of lab, and equipment usability scales. However, it was noted that student responses in the virtual environment varied significantly by which teaching assistant (TA) instructed the section. To test for a possible instructor effect, data from the virtual sections were grouped by TA as “Virtual Group A” and “Virtual Group B”. Group A contained the TAs who had sections with lower averages on the emotional satisfaction scale as compared to group B. After controlling for instructor, differences between student responses in the “Hands-On” sections and “Virtual Group A” sections were no longer significant while significant differences remained between the responses in the “Hands-On” and “Virtual Group B” sections. This outcome indicated that the TA instructing the course may have been more influential on students’ affective outcomes than the environment in which the experiment was performed.

Enhancing Digital Simulated Laboratory Assessments: a Test of Pre-Laboratory Activities with the Learning Error and Formative Feedback Model

Digitally simulated laboratory assessments (DSLAs) may be used to measure competencies such as problem solving and scientific inquiry because they provide an environment that allows the process of learning to be captured. These assessments provide many benefits that are superior to traditional hands-on laboratory tasks; as such, it is important to investigate different ways to maximize the potential of DSLAs in increasing student learning. This study investigated two enhancements—a pre-laboratory activity (PLA) and a learning error intervention (LEI)—that are hypothesized to enhance the use of DSLAs as an educational tool. The results indicate students who were administered the PLA reported statistically lower levels of test anxiety when compared to their peers who did not receive the activity. Furthermore, students who received the LEI scored statistically higher scores on the more difficult problems administered during and after the DSLA. These findings provide preliminary evidence that both a PLA and LEI may be beneficial in improving students’ performance on a DSLA. Understanding the benefits of these enhancements may help educators better utilize DSLAs in the classroom to improve student science achievement.

Effectiveness of using virtual chemistry laboratory integrated hybrid learning to students’ learning achievement

This research was conducted to analyze the effect of using virtual chemistry laboratory integrated hybrid learning toward students’ learning achievement on the subject of thermochemistry. Thus, the research was set as a quasi-experiment research using posttest and non-equivalent control group design. By purpossive sampling technique, the samples from 3 classes composed of 1 public senior high school were selected. The classes were divided into experiment class (EG) using both virtual chemistry laboratory integrated hybrid learning and traditional hands-on laboratory, control class 1 (CG-1) using virtual chemistry laboratory integrated hybrid learning only, and control class 2 (CG-2) using traditional hands-on laboratory only. The corresponding data were collected on the basis of a multiple choice test of chemistry learning achievement. The data were then tested by Anova. The results show that there is a significantly different in students’ learning achievement among the three classes EG, CG-1 and CG-2.

Comparing the influence of visualization type in an electrochemistry laboratory on the student discourse: who do they talk to and what do they say?

A laboratory is a large investment of time and money for departments of chemistry yet discussions continue about its purpose in the educational process. Helping students navigate the three levels of representation; macroscopic, particulate and symbolic is a potential use of this time. This study looked at two different types of visualization for an electrochemistry laboratory in second semester general chemistry and the impact that the visualization type had on the student discourse. Macroscopic visualization (MV) was accomplished through a traditional hands-on laboratory and particulate visualization (PV) was achieved using a computer simulation featuring animated electrons and ions. The type of visualization impacted how much the students talked, who they talked to, and what they talked about. The MV students engaged in less peer-to-peer discussion than the PV students. The MV students expressed more excitement about their observations and were more focused on getting the data quickly. The MV spent most of their time physically doing the laboratory work while spending little time discussing the concepts. The PV students spent more time talking about concepts with their peers especially at the particulate level even answering macroscopic questions with particulate explanations. The type of visualization influenced all aspects of the student discourse.

Use of case-based or hands-on laboratory exercises with physiology lectures improves knowledge retention, but veterinary medicine students prefer case-based activities.

Didactic lectures are prevalent in physiology courses within veterinary medicine programs, but more active learning methods have also been utilized. Our goal was to identify the most appropriate learning method to augment the lecture component of our physiology course. We hypothesized that case-based learning would be well received by students and would be more effective at helping them learn physiological concepts compared with more traditional laboratory exercises. In this study, approximately one-half of the laboratory sessions for the two-semester course were dedicated to traditional hands-on laboratory exercises, whereas the remaining one-half of the sessions were dedicated to case-based exercises. The lecture portion of the course was not altered. Student attitudes were evaluated after each session and at the end of each semester via quantitative and qualitative survey questions. Student performance was evaluated using section exams and end-of-semester posttests. The vast majority of survey responses received were positive for both cased-based activities and traditional hands-on laboratories. In addition, participation in both types of active learning activities, but not lecture, was associated with retention of conceptual knowledge based on student performance between the section exams and posttests ( P < 0.002). These results indicate that both case-based learning and laboratory exercises are beneficial learning activities to incorporate into a lecture-based physiology course. However, positive survey responses were significantly greater following case-based activities vs. traditional hands-on laboratories, and only participation in case-based activities resulted in greater student performance on the posttest ( P < 0.04). Therefore, case-based activities may be the preferred supplemental learning activity for veterinary medical physiology.

A virtual lab as a complement to traditional hands-on labs: Characterization of an alkaline electrolyzer for hydrogen production

Laboratories are commonly included as part of university courses as a way to relate theoretical lectures with experimental processes. In this sense, an excellent tool widely employed in academic teaching is the use of simulation software as a link between theory and traditional hands-on practice. This work is focused on the use of a virtual lab, i.e., a simulation, to study the electrolysis of water for hydrogen production, as a complement to traditional hands-on labs to help students comprehend the basics of this industrial process. At Complutense University of Madrid, students perform this laboratory as part of an engineering course included in the program of the chemical engineering bachelor’s degree during their junior year. First, in this work, the hands-on lab is described as one of the cases proposed. Three more cases involving the virtual lab are also included as part of the laboratory experience. The last proposed case is focused on the theoretical background that students should have acquired during the hands-on and virtual lab sessions: three questions have to be addressed by the students. This work also includes a section where the opinions of students, their feedback after performing the labs, and the opinions of their professors (the authors) are incorporated to finally report some ideas for future work and conclusions about the ongoing teaching experience. A peculiarity of the use of virtual labs is that, in this case, they are performed after the hands-on labs, and therefore, they do not aim to prepare students for the laboratory by presenting the necessary theory for the experiment. The motivation of this virtual lab is to provide students with knowledge of the physical/chemical phenomena that govern the electrolysis process through the use of a theoretical model in order to reduce the limitations of the hands-on labs, such as the operating conditions, i.e., time, temperature, and number of cells, and to provide them with values for the parameters of a real system that can help with a critical discussion of the measured results.

The experiment editor: supporting inquiry-based learning with virtual labs

Inquiry-based learning is a pedagogical approach where students are motivated to pose their own questions when facing problems or scenarios. In physics learning, students are turned into scientists who carry out experiments, collect and analyze data, formulate and evaluate hypotheses, and so on. Lab experimentation is essential for inquiry-based learning, yet there is a drawback with traditional hands-on labs in the high costs associated with equipment, space, and maintenance staff. Virtual laboratories are helpful to reduce these costs. This paper enriches the virtual lab ecosystem by providing an integrated environment to automate experimentation tasks. In particular, our environment supports: (i) scripting and running experiments on virtual labs, and (ii) collecting and analyzing data from the experiments. The current implementation of our environment supports virtual labs created with the authoring tool Easy Java/Javascript Simulations. Since there are public repositories with hundreds of freely available labs created with this tool, the potential applicability to our environment is considerable.

Mixed-reality learning environments: Integrating mobile interfaces with laboratory test-beds

Even as mobile devices have become increasingly powerful and popular among learners and instructors alike, research involving their comprehensive integration into educational laboratory activities remains largely unexplored. This paper discusses efforts to integrate vision-based measurement and control, augmented reality (AR), and multi-touch interaction on mobile devices in the development of Mixed-Reality Learning Environments (MRLE) that enhance interactions with laboratory test-beds for science and engineering education. A learner points her device at a laboratory test-bed fitted with visual markers while a mobile application supplies a live view of the experiment augmented with interactive media that aid in the visualization of concepts and promote learner engagement. As the learner manipulates the augmented media, her gestures are mapped to commands that alter the behavior of the test-bed on the fly. Running in the background of the mobile application are algorithms performing vision-based estimation and wireless control of the test-bed. In this way, the sensing, storage, computation, and communication (SSCC) capabilities of mobile devices are leveraged to relieve the need for laboratory-grade equipment, improving the cost-effectiveness and portability of platforms to conduct hands-on laboratories. We hypothesize that students using the MRLE platform demonstrate improvement in their knowledge of dynamic systems and control concepts and have generally favorable experiences using the platform. To validate the hypotheses concerning the educational effectiveness and user experience of the MRLEs, an evaluation was conducted with two classes of undergraduate students using an illustrative platform incorporating a tablet computer and motor test-bed to teach concepts of dynamic systems and control. Results of the evaluation validate the hypotheses. The benefits and drawbacks of the MRLEs observed throughout the study are discussed with respect to the traditional hands-on, virtual, and remote laboratory formats.

Assessing the Remote Engineering Lab VISIR at Al-Quds University in Palestine

Engineering labs play a vital role in engineering education, make science come alive, and supply students with better understanding of theories. As a result, they contribute to the improvement of their knowledge and skills. Remote labs not enable sharing of teaching resources such as devices, equipment and instrumentation between universities, but also relax time and space constraints; yet they are considered as a complementary asset to the traditional hands-on labs. This paper is concerned with a two-stage assessment of the engineering remote lab VISIR. In the first stage, the assessment investigated if the students accept to use VISIR in their future lab courses at the Faculty of Engineering at Al-Quds University in Palestine. In the second stage, a deeper analysis will be performed to compare VISIR to hands-on and simulators based on the evaluation criteria: performance, students’ retention rate and satisfaction survey.

Are Virtual Labs as Effective as Hands-on Labs for Undergraduate Physics? A Comparative Study at Two Major Universities

Most physics professors would agree that the lab experiences students have in introductory physics are central to the learning of the concepts in the course. It is also true that these physics labs require time and money for upkeep, not to mention the hours spent setting up and taking down labs. Virtual physics lab experiences can provide an alternative or supplement to these traditional hands-on labs. However, physics professors may be very hesitant to give up the hands-on labs, which have been such a central part of their courses, for a more cost and time-saving virtual alternative. Thus, it is important to investigate how the learning from these virtual experiences compares to that acquired through a hands-on experience. This study evaluated a comprehensive set of virtual labs for introductory level college physics courses and compared them to a hands-on physics lab experience. Each of the virtual labs contains everything a student needs to conduct a physics laboratory experiment, including: objectives, background theory, 3D simulation, brief video, data collection tools, pre- and postlab questions, and postlab quiz. This research was conducted with 224 students from two large universities and investigated the learning that occurred with students using the virtual labs either in a lab setting or as a supplement to hands-on labs versus a control group of students using the traditional hands-on labs only. Findings from both university settings showed the virtual labs to be as effective as the traditional hands-on physics labs.

How Remote Labs Impact on Course Outcomes: Various Practices Using VISIR

As technology is increasingly being seen as a facilitator to learning, open remote laboratories are increasingly available and in widespread use around the world. They provide some advantages over traditional hands-on labs or simulations. This paper presents the results of integrating the open remote laboratory VISIR into several courses, in various contexts and using various methodologies. These integrations, all related to higher education engineering, were designed by teachers with different perspectives to achieve a range of learning outcomes. The degree to which these VISIR-related outcomes were accomplished is discussed. The results reflect the levels of student engagement and learning and of teacher involvement. From the analysis, a connection between these two aspects was traced, although only related to the user profiles. VISIR is shown to be always of benefit for more motivated students, but this benefit can be maximized under particular conditions and characteristics.

Designing and Implementing an Assessment Plan for a Virtual Engineering Lab

This article describes the process of creating, implementing, and assessing an innovative learning tool. The game based laboratory simulation, “Gaming for Applied Materials Engineering” (GAME), incorporated into the Engineering curriculum at a large public university, is intended to facilitate the same learning previously taught in a traditional hands-on laboratory. Through this technological tool, researchers hope to extend an integral learning opportunity to students currently unable to access physical labs, as well as, to augment and reinforce the material taught to those currently enrolled in physical lab courses. Throughout the article, the research team discusses the assessment methodology, describes several challenges overcome, and offers recommendations for others interested in utilizing game-based technology in educational settings.