Abstract
This study explores the use of blockchain in the course design and evaluation in Chinese universities, and explores the value of teachers’ views and experiences on blockchain in the course design. Previous studies have shown that blockchain has a positive effect on the improvement of online teaching management and evaluation quality. Most of the current research focuses on the management of online teaching by using blockchain, and this qualitative case study investigates the design and evaluation of online course based on blockchain by five teachers of different specialties. Semi-structured interviews and course materials were collected from five teachers for a TPACK framework analysis. The result of the survey emphasizes that the redesign of online courses based on blockchain can improve the matching between blockchain and courses, the quality of teaching and the trust of various parties in online education. The block chain-based the online course of both theory and practice design and evaluation, which is oriented by the index method of capability evaluation, is an appropriate idea and has achieved good results. The experimental course focuses on the integration of blockchain and experimental platform. The immersive and interactive course presentation and the personalized examination based on machine learning are effective. But follow-up should pay attention to the different requirements of course design of different disciplines, using a variety of data sources for analysis, to take measures to enhance the enthusiasm of teachers to adopt new technologies.
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1 Introduction
With the development of digitization, network and global learning environment, online teaching, which integrates the Internet, intelligence, technology and transcends the limitation of time and space, has become the new normal of university teaching (Wu, 2020). However, with the spread of online teaching during the epidemic, the content of online teaching is complicated and difficult to supervise, and there are also serious problems such as the loss of privacy and lack of trust in students’ learning. Traditional offline instructional design and evaluation methods cannot win students’ attention and the recognition of education stakeholders, which seriously restricts the credibility and acceptance of online instruction. The exploration of online teaching has become an urgent problem in the development of pedagogy (Kong et al., 2021). Among them, the use of new technology to reform the teaching of courses has been the focus of educational research (Petersen & Hossein, 2016). Pierson (2001) took the lead in introducing technical knowledge into the domain of teaching professional knowledge, and initially formed the TPACK framework which integrates the content knowledge of integrated technology (TCK), the pedagogical content knowledge of integrated technology (TPK) and the teaching knowledge of integrated technology (PCK)(Cox & Graham, 2009). With the popularization of information technology, the application of technology in teaching has become more and more important. From the early production of professional video, the use of drawing software, the live course(Koehler & Mishra, 2009), to the recent flipped classroom, massive open online course, etc., more and more researches focus on the improvement of teaching level and teaching quality brought by technology (Long et al., 2019; Downes, 2019).
Blockchain is a distributed record or distributed public ledger database. The decentralization, intelligent contract, machine learning and encryption of blockchain can effectively date back to the data, validate the data and encourage each node to perfect the data, and enhance the multi-party trust (Xu 2017). Previous research has shown that blockchain has a positive effect on the improvement of online teaching management and evaluation quality (Don and Alex 2016; Raimundo & Rosário, 2021). The blockchain carries on the massive research in the university management (Li and Zhang 2017). However, there are few researches on the concrete course design and evaluation. This research takes the online course as the research object, discusses the design and implementation method of the online course adapted to the blockchain, and the influence of the teachers’ opinions and viewpoints on the online course design and evaluation, in order to get better online teaching effect.
2 Literature review
2.1 Technological pedagogical content knowledge (TPACK)
Teachers are the basic force of education development. The knowledge structure of teachers has a direct impact on teaching quality (King et al., 2019; Li et al. 2017). The teaching knowledge of traditional teacher mainly includes the content knowledge (CK) and the pedagogy knowledge (PK). Shulman (1986) introduced the concept of PCK (Pedagogical Content Knowledge) when he analyzed the knowledge structure that teachers should have. He believes that PCK is the intersection of content knowledge and pedagogy knowledge and is independent of them. PCK is based on the condition that teachers choose appropriate teaching methods to enable students to better grasp the knowledge according to different course content. This idea of teaching for students’ learning is also supported by the National Science Teachers Association and the National Council for Accreditation of Educator Preparation. With the advent of the information age, the way of teaching and learning has changed, and technology, especially information technology, is playing a more and more important role in teaching. Pierson (2001) pioneered the introduction of technical knowledge into the teaching profession. In 2005, Niess (2011) introduced technology into PCK model and considered technology as an integral part of teaching. In 2006, Koehler and Mishra defined the pedagogical content of the TPCK. In 2007, Thompson and Mishra officially renamed TPCK to TPACK. The American Association of Colleges for Teacher Education publishes Handbook of Technological Pedagogical Contet Knowledge for Educators.
Studies have shown that, teachers’ working ability, working attitude, provided learning resources and teaching methods were significantly correlated with students’ online teaching satisfaction (Wang et al. 2020). Teachers’ experience and perception of technological innovation in the classroom is an important factor in determining whether they use or continue to use technology (Spotts, 1999). In addition, teachers’ perspectives may have a direct impact on students’ behavior and learning outcomes when using innovative technologies in the classroom (Churchill and Churchill, 2008). Understanding Teachers’ experiences and perceptions related to technological innovation is therefore critical to increasing the use of such innovation (Churchill and Churchill, 2008). Therefore, this research takes TPACK as the research frame, through investigating the higher education teachers’ experience and view to blockchain, analyzes the influence of teachers’ attitude to technology on the course design and evaluation based on technology to accumulate some experience for the blockchain and other technologies based on the course design and evaluation.
Figure 1 summarizes the four sources of teaching knowledge structure: the technological content knowledge (TCK), the technological pedagogy knowledge (TPK), the pedagogical content knowledge (PCK) and the technological pedagogical content knowledge (TPACK)(Graham, 2011) Fig. 2 .
2.2 Research on blockchain in higher education
In recent years, the blockchain-based online teaching of higher education has exploded (Chen et al., 2018). The design and evaluation of online teaching in higher education based on blockchain is a mechanism to rebuild trust, which helps to build trust among education stakeholders, and its improvement on the service supply model of digital educational resources, such as blockchain transcripts (Huang 2021), resource management of learners (Pablo and Carles, 2019), and learning books (Merija and Janis, 2018) also helps to improve the complexity of online content, which is not easy to monitor, the difficulty to record, analyze and evaluate students’ learning, state and ability to achieve the degree of deficiency of the traditional education model (Mentzer et al., 2020), thus enhancing the credibility and sustainability of online teaching (Lizcano et al., 2020).
The research and practice of blockchain in the field of higher education mainly focus on three aspects.
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a
Technical development of blockchain
The first is the education of blockchain technology. Since 2016, the University of California, Berkeley, has launched a blockchain undergraduate program, while Stanford and the Massachusetts Institute of Technology have all launched blockchain courses. The University of Nicosia in Cyprus has taken a bold step towards a master's degree programme in blockchain technology. Draper University, the University of Cumbria, the University of Nicosia and others accept digital currency tuition (Fedorova & Skobleva, 2020). In 2016, China’s Tsinghua University began a blockchain-related course, named Cognitive Foundation beyond Disciplines. In May 2018, Tsinghua University established the national university blockchain education alliance-the Ivy League, and released the first innovation experimental platform based on blockchain -Ivy Chain, with the aim of training talents of blockchain for the university.
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b
Application of blockchain in education
The second is the convergence of blockchain and other technologies. In the process of development, blockchain and other technologies continue to integrate, trying to find a suitable research method for the course design such as the integration of blockchain and machine learning (Wang and Qiao, 2020), the combination of blockchain and genetic algorithm to build an English test platform (Wu 2020) and the combination of blockchain and Business Model Canvas to build an intelligent blockchain courses (Oganda 2020).
Blockchain promotes the course design
In the existing research, bioinformatics database (Chen, 2019), English teaching (Wang and Qiao, 2020), engineering education and other courses have been combined with blockchain technology. The Bioinformatics Database Course emphasizes the rights of data and the ability of machine learning at the age of big data, and emphasizes the ontologies as the core of the course. English teaching emphasizes the combination of blockchain and the virtual platform to enable students to gain immersive learning experience and enhance learning effect. The curriculum of engineering education uses the capacity-output-oriented idea in the Washington Accord to design the curriculum by using the blockchain. The EU funded research project QualiChain aims to strengthen the link between education and the labour market through new technologies. The project combines blockchain with data analysis and decision support techniques to design and optimize the course flow for students in the School of Electrical and Computer Engineering at the National Technical University of Athens, and enhances students’ ability to acquire the skills needed by the market (Kontzinos et al. 2020). Blockchain provides a new perspective and method for the curriculum design.
Blockchain expands service supply mode of digital educational resources
The existing research mainly includes the blockchain design of course learning, the construction of classroom ecosystem, the blockchain report card, the learner resource management, the study account book and so on (**a and Xu, 2020; Milovich et al., 2020; King et al., 2019). Distributed course certification authorities add certificate data to the blockchain as a permanent and immutable public record, and Sony Global Education has announced the development of a new blockchain for storing learning and award-winning certificate records (Downes, 2019). In 2016 MIT and a company launched Blockcerts, a digital certificate system based on the blockchain. The system was later used to issue digital certificates for the participants in MIT global entrepreneurship training camp in Seoul, South Korea, and to create digital certificates recorded on the blockchain for some undergraduates, master and doctoral graduates. China’s Central University of Finance and Economics and Microsoft have teamed up to create a program named Campus Blockchain that will lower the cost of schooling, job hunting and hiring by creating a convenient and trusted certification system, thereby promoting open education and credibility.
Blockchain enhances management capabilities to higher education
In March 2018, Oxford University academics launched the first blockchain-based university, Woolf University, using apps to build courses and teach, allowing students to earn full credits and earn a department for the education degree. Tuition is paid in digital currency, the proceeds go mainly to teachers, administrative costs are very low, and the student learning process, agreement management, tuition collection and payment management, as well as a student academic performance are all recorded by blockchain (** Ethereum Blockchain-Based Document Verification Smart Contract for Moodle Learning Management System. Online Submission International Journal of Informatics Technologies, 04, 399–406. https://doi.org/10.17671/gazibtd.452686 " href="/article/10.1007/s10639-022-10889-w#ref-CR15" id="ref-link-section-d105847754e644">2018),open education resources (OER) new ecological construction(Li & Yang, 2018).Learning process, evaluation and achievements in the platform are objective and traceable, which ensures the reliability of learning process to a great extent, and enhancing society’s trust in online learning.
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c
Reflecting on the application of blockchain
Firstly, How to ensure the security of blockchain as a technology?(Moubarak et al. 2018) The blockchain gains the trust of the system by ensuring the security of data, such as decentralization, openness and autonomy. However, there are still some deficiencies in the basic technology of blockchain, such as the adoption of international cryptographic algorithms, intelligent contracts and so on, which is not completely autonomous and increase the risk of being attacked. More than 51% of the computing power can rewrite the blockchain data. Although the possibility is small, the education data is huge, detailed, important, and it still should be cautious. Secondly, Blockchain is in the location between traditional centralized information governance and decentralized information governance. (Lemieux et al. 2020)While managers are aware of the significant opportunities for distributed, decentralized education in terms of efficiency and new ways of teaching, blockchain technology cannot be applied to all aspects of education, and some scholars put forward a new analysis framework of strategic information governance, and think that the hybrid system, that is, the partial decentralization system, will be more suitable to the challenges of the transition period.
As can be seen from the above, Although there are many researches on education and curriculum design of blockchain, the research on applying blockchain to curriculum design is limited, and the research on different types of curriculum design based on blockchain is even less. This study is based on the analysis of the experiences and opinions of five college teachers who use blockchain in the course design and evaluation, and provides some explorations for the future use of blockchain-based online teaching course design and evaluation.
3 Research design
This research uses the method of qualitative case study to record the situation of online course design and evaluation of five university teachers based on blockchain. The qualitative case study approach enables researchers to conduct in-depth analyses to gain a comprehensive understanding of all aspects of the study and to gain a holistic and comprehensive understanding of the study (Punch, 2005). The study analyzed teachers’ responses to blockchain-based online course design and evaluation and mainly solves two problems:
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1. 1
their teaching design based on blockchain and implementation
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1. 2
successful completion of the online course teaching based on blockchain
3.1 Contexts and participants
Purposeful sampling was used in this study. This study uses targeted sampling to fully engage teachers who are able and willing to share their experiences and perspectives on the exploratory use of blockchain-based online course design and evaluation(Patton, 2002).
The study was conducted online for juniors at key universities in a central Chinese province. Five teachers participated in the study. The two researchers, who are also teachers at the uniersity, have a better understanding of the teaching process and facilitate communication, but are not affiliated with the participants. All five teachers conducted blockchain-based courses during the outbreak. The five teachers had different classes. Teacher 1 teaches Telecommunications Engineering in the College of Physics, teacher 2 teaches Human Resource Management in the College of Management, and teacher 3 teaches Chinese language and literature. Teacher 4 teaches Natural Resources and teacher 5 teaches Experimental Psychology.The five teachers were recruited for the study for two reasons. First, they were active, communicative and sharing teachers.This helps researchers to obtain sufficient information of curriculum design, to explore and analyze more in-depth. Second, the courses they teach cover the traditional combination of engineering, science, liberal arts, and experimental courses. Among them, Communication Engineering belongs to engineering, Natural Resources and Experimental Psychology to science, Chinese language and literature to arts, while Human Resource Management belongs to both arts and sciences. The five courses participate in the blockchain of online course design and evaluation of the study with a strong representation and a wide range. Third, all five teachers have a technical background. The 36-year-old teacher who teaches telecommunications engineering with a background in science and engineering has some knowledge of blockchain and information technology; the 43-year-old management teacher who won a bid for a national blockchain project; and the 56-year-old Chinese language and literature teacher, who is willing to explore new technology, has volunteered to participate in the school’s blockchain training. The professor of natural resources, 41, Ph. D., has strong computer skills and participates in the blockchain training program; the teacher of experimental psychology, 54, Ph. D., professor, was a visiting scholar at Harvard for a year, concerned with advanced technology, and participated in blockchain training program. They also have more than 10 years of teaching experience. The personal data of the five participants is provided in Table 1.
These five teachers have participated in the school blockchain training, and the blockchain training is divided into two parts. The first part is the course or the lecture form carries on the instruction of theory. The second part is a discussion among teachers on how to improve the practical application of blockchain.
3.2 Data collection
Data collection mainly comes from two aspects: one is the semi-structured interview between the researcher and the interviewees. The interview is divided into two stages. The first stage is the beginning of the semester before the start of the course. The average interview time with each interviewee is about 40 min. The interview included: What do you know about blockchain? Do you think blockchain application in online course design can improve teaching quality? If you think you can improve the quality of your online education, what can you do to improve it? What are the main difficulties in designing blockchain-based online courses? (See Appendix 1 for detailed questions). The second stage is the end of the semester after the course. The average interview time with each interviewee is about 80 min. The interview included: How do you design and evaluate online courses based on blockchain? What adjustments have you made? What do you think are the main advantages of blockchain-based online course design and evaluation? Do you think the learning and application of blockchain has improved your blockchain level and helped your teaching ability?What are your suggestions for future research on blockchain-based course design? (See Appendix 2 for detailed questions). Interview data are recorded and transcribed, and reviewed by members to improve effectiveness (Merriam, 2009; Punch, 2005).
The other is the course materials shared by teachers voluntarily. These materials include the syllabus, courseware, and course evaluation materials. The researchers used these course materials to learn more about online course design and evaluation based on blockchain and to check for consistency with what was reported in the interviews. The approach of qualitative case studies deals with multiple evidence to converge in a triangulated manner. Courses are used to measure in a triangulated manner and provide information (Merriam, 2009).
3.3 Data analysis
The data were analyzed for two interviews and course materials before and after the course began. The interview data were analyzed before the beginning of the course and after the course to establish the relationship between the two. The course material is rich and corroborates the interview information. When trigonometry is used to measure the course materials, it is also necessary to judge whether the interview content and the course materials support each other. The interviews were conducted in an undisturbed environment. In order to prevent mutual influence and pollution, the samples were interviewed one teacher at a time. The interviews were recorded after obtaining the consent of the participants, and then transcribed into six interview transcripts. Using NVivo software to make initial code identification (Merriam, 2009). As new concepts emerge, new code is added, new coding categories are generalized, and an existing list of coding categories is added. Axial coding was performed to block coding and establish a common theme (Merriam, 2009). A constant method of comparison is used in each subject to look for similarities and differences to reduce repetition and optimize data. Discussions were then conducted by the three masters in education to ensure that the data were interpreted accurately and that appropriate changes were made.
5 Discussion
5.1 Review of research questions
As far as research question 1 is concerned, the research shows that the method of course evaluation based on competency-oriented indicators can be considered.by using blockchain to design and evaluate online courses, while designing online courses based on blockchain is aimed at the discipline with strong theoretical and practical operability. For the experimental course, we can consider the integration of blockchain and platform, the explanation of immersive and interactive content, and the examination design of machine learning pertinence.We should pay attention to the combination of qualitative and quantitative data, process and result data, and set the weight and proportion reasonably. In the aspect of integrating the pedagogy content knowledge of blockchain technology, teachers have all done the work before, during and after class, and adopted different teaching and evaluation methods according to the characteristics and reality of the subject.
For research question 2, the results of the study provide the following suggestions for teachers who plan to use blockchain in the course design and evaluation: a. The adoption of the technology should be supported by senior leadership. b. To design and evaluate the course from the perspective of competence evaluation, and to record the process and result of the course from multiple angles by using blockchain is helpful to win the trust of many parties and obtain better effect. c. Support each other in a model of research group.
5.2 Advantages of online course design based on blockchain
Blockchain helps to build system trust. All five teachers agree that the biggest benefit of blockchain to online course teaching is to improve multi-party trust and build up systematic trust. Teacher 1 said: “since the blockchain can trace the data and ensure the accuracy and comprehensiveness of the data, both students and employers accept the results of the course evaluation.” Teacher 2 said: “In the past, students have always come to check the results after the final results, but this year no one check points, and students also trust to support the course results.” Teacher 3 shared: “In the past, schools and management have repeatedly stressed the need for teachers to be accurate and fair in their assessment of students. With the use of the blockchain, this requirement is reduced and it is felt to be more objective and accurate.” Teacher 4 said, “The blockchain records the learning process of the students, the learning status of the course, the answers and the interactive display. Some data are input by the teachers and some data are directly generated after the standard has been set. The evaluation results are objective and fair and the dispute on the results has been significantly reduced.” Teacher 5 said, “There has always been a problem of unclear evaluation criteria for experimental courses. After using blockchain, it has a good evaluation, because all the processes during the experiment is recorded, whether it is instrumental operation record or the video record. Blockchain can also generate experimental report according to students’ experimental situation, and everyone was fine with it.” It is clear that,the blockchain has increased trust in the quality of the course and evaluation of students’ learning.(Amiraullt, 2019; Vu et al., 2019).
After the teaching reform of the online course based on blockchain, the content is more abundant, and the teaching forms are more diverse. The records of the learning process are more detailed. The students’ learning interest and attitude have been promoted, and their learning ability has been improved. Teacher 1 points out that she has made adjustments to the teaching methods of the telecommunication engineering course, adding online experiments, videos, flipped classroom and other forms, and that students’ learning initiative and effort have increased significantly, “I used to have very few students asked me questions after class, but now I often have students contacted me to ask questions after class.” Teacher 2 said, “The understanding and application skills of human resource management are important, but students don’t value them because it is difficult to assess. But now students know they have to go through a number of tests, each weighted to represent a different competency point, and these results will be seen in the blockchain by future graduate tutors or employers, so students value the learning of various competencies.” Teacher 3 shared that the micro certificates of blockchain and the incentives that follow the messages also reinforce students’ motivation to learn. Teacher 4 shared that students attach great importance to interactive presentations, which is carefully designed to show teachers and students that their ability to use professional knowledge and language has been greatly improved. Teacher 5 thought that students know that the experiment is well documented and that weak points may be the focus of future exams, so they prepare more carefully and perform better than before. From the above we know the comprehensive ability of the students was improved.
5.3 Practice of online course design and evaluation based on blockchain
This study shows that the research of course design and practice is not enough only for teachers, but also for leaders’ support. Although teachers are the main users of the blockchain, the support of senior leaders is crucial. Three key factors may influence a leader’s support: requirements of the country, the leader’s own skill level and the level of communication with the leader. But pay attention to the fact that the leader is supporting, not directing.
It can be seen from the interview results that the division of the labor and mutual support among the members of the research group are very helpful to the successful completion of the research and the teaching reform of the course with the new technology. The effect of group cooperation in complex work is much better than that of individual (Aboramadan et al., 2020). Teachers can get emotional support, technical support and a sense of value and trust from the work of these teams (Lizcano et al., 2020). These complex and creative tasks are difficult for individuals to accomplish, and even then they are limited by their thoughts and abilities to achieve the effect of working together as a team (Spotts, 1999).
This study not only explored the blockchain-based course design and evaluation methods. According to the TPACK research framework, it can be found that it enhances the professional and technical capacity of teachers, and it is of great significance for teachers to apply new technology to improve the teaching quality of professional courses. In this study, the technology development of blockchain is mainly through training and mutual discussion, and after a certain theoretical basis, it is gradually familiar with and uses the technology tools through the practice. In the technical and professional content of knowledge, it is mainly through seminars, lectures to achieve progress, and uses the course design ideas of competency assessment indicators-oriented. However, the support in the teaching method is limited, mainly for micro-video, case discussion, experiment and so on, and mainly relying on teachers’ own experience and ability. From the TPACK research framework and research practice, professional and technical training on the one hand depends on the form of speaking to obtain theoretical knowledge, but more importantly through the members of each other to discuss, practice, combine with the teaching model, and links between subject matter and pedagogy to solve practical problems.
5.4 The deficiency of this research and the prospect of the future research
The limitations of this study are twofold: The first limitation is that the study is involved only one school, five courses, and teachers from the same university, all interacting with each other in the course study, therefore many feelings and perceptions are similar, and the homology error is inevitable. Another limitation is that only interviews and course materials are used for data collection. Future research will be complemented by more data sources that can be triangulated, such as classroom observations and in-depth interviews with students and administrators.
5.4.1 Future research will be oriented in two directions
First, it has to do with the characteristics of the subject. This study shows that the blockchain has a good effect on the course design by adopting the method of competence-oriented index evaluation in the discipline that pays equal attention to both theory and practice. Experimental courses based on platform construction, interactive and immersive curriculum design have a good effect. However, it is not clear whether blockchain will have different requirements on the course design in other professional courses. Fedorova and Skobleva (2020) consider that blockchain cannot fully reflect the differences and advantages between blockchain and traditional course management for courses with less data, the single mode of class and evaluation based mainly on final results. Therefore, whether blockchain technology is suitable for all disciplines, and how to choose different teaching design and evaluation methods of online courses adapted to blockchain according to the characteristics of disciplines, is worth studying and discussing.
The second relates to the research promotion. It is found that the teachers are not active in the research and practice of course reform, and the process of course reform is time-consuming, slow and difficult to obtain support (Spotts, 1999). Therefore, if we want to advance the teaching reform, the leaders must provide the opportunity and the support to the teachers, to carry on the course research by the research team. Future research will also focus on how the reward system should be designed and how it affects teachers’ motivation, initiative and mutual assistance.
6 Conclusion
This research shows that blockchain-based online course design is suitable to use a variety of teaching methods to obtain qualitative and quantitative process-based and outcome-based data, win the trust of multiple parties and enhance students’ learning effectiveness. Specifically, for the discipline with strong theory and practice, we can take the index-oriented method of competence evaluation into consideration, adopt the form of research group, obtain the leadership support, and get better online course design and evaluation effect.
Finally, we also address several deficiencies: the first is the limited source of data and sample size. Secondly, although it is considered that the ability-oriented index method is more effective in the course design, there are great differences in different subjects and course requirements. Perhaps not all disciplines are suitable for this approach. The experimental course mainly stays at the technical level, such as improving the platform and adopting some techniques, but how to unify the teaching content, course design and course evaluation in one frame has not been well tried.The future scholars pay attention to different disciplines for different blockchain-based online course design and evaluation methods.
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Acknowledgements
The authors want to thank to the teachers and students enrolled in this study. And thank the Business School of Henan University for administrative support.
Funding
This research was funded by the National Social Science Fund of China, grant number 20BJY215 ‘Research on Early Warning and Classified Governance of Local Government Hidden Debt Based on Blockchain’. The views expressed in this paper are not necessarily the views of that organization.
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Min, L., Bin, G. Online teaching research in universities based on blockchain. Educ Inf Technol 27, 6459–6482 (2022). https://doi.org/10.1007/s10639-022-10889-w
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DOI: https://doi.org/10.1007/s10639-022-10889-w