Research article

The readiness of IR4.0: Morality and technology integration among mathematics teachers


  • Received: 18 November 2023 Revised: 27 December 2023 Accepted: 08 January 2024 Published: 11 January 2024
  • The rapid advancement of technology in the era of the Fourth Industrial Revolution presents both opportunities and challenges for education, particularly in the field of mathematics. As teachers incorporate technology into their instructional practices, it is crucial to examine the role of morality in shaping their approach and the subsequent impact on readiness to face the demands of this transformative era. This study investigates the effect of morality as a mediator between teachers' use of technology in mathematics education and readiness for the Fourth Industrial Revolution. The study adopted a quantitative research design, involving a sample of mathematics teachers from Malaysia and Indonesia. The findings found that the impact of technology use on the readiness for IR4.0 among mathematics teachers in Indonesia and Malaysia was found not statistically significant, but it significantly influences morality, suggesting that morality full mediates the relationship between technology use and readiness among mathematics teachers in Indonesia and Malaysia. This study contributes to understanding of how technology integration and moral values intersect in preparing mathematics teachers for the readiness of IR4.0. These insights can inform the development of effective strategies, policies, and interventions to equip teachers with the necessary skills and ethical frameworks to thrive in the digital age.

    Citation: Hutkemri Zulnaidi, Nofouz Mafarja, Enny Oktavika. The readiness of IR4.0: Morality and technology integration among mathematics teachers[J]. STEM Education, 2024, 4(1): 1-19. doi: 10.3934/steme.2024001

    Related Papers:

    [1] Ibrahim Khalil, Amirah AL Zahrani, Bakri Awaji, Mohammed Mohsen . Teachers' perceptions of teaching mathematics topics based on STEM educational philosophy: A sequential explanatory design. STEM Education, 2024, 4(4): 421-444. doi: 10.3934/steme.2024023
    [2] Rommel AlAli, Wardat Yousef . Enhancing student motivation and achievement in science classrooms through STEM education. STEM Education, 2024, 4(3): 183-198. doi: 10.3934/steme.2024012
    [3] Muzakkir, Rose Amnah Abd Rauf, Hutkemri Zulnaidi . Development and validation of the Quran – Science, Technology, Engineering, Art, And Mathematics (Q-STEAM) module. STEM Education, 2024, 4(4): 346-363. doi: 10.3934/steme.2024020
    [4] Jingwen He, Shirley Simon, Feng-Kuang Chiang . A comparative study of pre-service teachers' perceptions on STEAM education in UK and China. STEM Education, 2022, 2(4): 318-344. doi: 10.3934/steme.2022020
    [5] Ana Barbosa, Isabel Vale, Dina Alvarenga . The use of Tinkercad and 3D printing in interdisciplinary STEAM education: A focus on engineering design. STEM Education, 2024, 4(3): 222-246. doi: 10.3934/steme.2024014
    [6] Dragana Martinovic, Marina Milner-Bolotin . Examination of modelling in K-12 STEM teacher education: Connecting theory with practice. STEM Education, 2021, 1(4): 279-298. doi: 10.3934/steme.2021018
    [7] Adi Nur Cahyono, Riza Arifudin, Rozak Ilham Aditya, Bagus Surya Maulana, Zsolt Lavicza . An exploratory study on STEM education through math trails with digital technology to promote mathematical literacy. STEM Education, 2025, 5(1): 41-52. doi: 10.3934/steme.2025003
    [8] Gaifang Dong . Successes and lessons from a trial of the three-way university-enterprise cooperation program on data science and big data processing technology in China. STEM Education, 2022, 2(4): 293-302. doi: 10.3934/steme.2022018
    [9] William Guo . Solving word problems involving triangles and implications on training pre-service mathematics teachers. STEM Education, 2024, 4(3): 263-281. doi: 10.3934/steme.2024016
    [10] Tang Wee Teo, Aik Ling Tan, Ban Heng Choy . "It feels different when blindfolded": Developing social empathy through inclusive designs in STEM. STEM Education, 2024, 4(1): 20-34. doi: 10.3934/steme.2024002
  • The rapid advancement of technology in the era of the Fourth Industrial Revolution presents both opportunities and challenges for education, particularly in the field of mathematics. As teachers incorporate technology into their instructional practices, it is crucial to examine the role of morality in shaping their approach and the subsequent impact on readiness to face the demands of this transformative era. This study investigates the effect of morality as a mediator between teachers' use of technology in mathematics education and readiness for the Fourth Industrial Revolution. The study adopted a quantitative research design, involving a sample of mathematics teachers from Malaysia and Indonesia. The findings found that the impact of technology use on the readiness for IR4.0 among mathematics teachers in Indonesia and Malaysia was found not statistically significant, but it significantly influences morality, suggesting that morality full mediates the relationship between technology use and readiness among mathematics teachers in Indonesia and Malaysia. This study contributes to understanding of how technology integration and moral values intersect in preparing mathematics teachers for the readiness of IR4.0. These insights can inform the development of effective strategies, policies, and interventions to equip teachers with the necessary skills and ethical frameworks to thrive in the digital age.



    The Fourth Industrial Revolution, characterized by the rapid advancement of technology and its integration into various aspects of society, has brought about significant changes in the education landscape. In this era of transformative technological advancements, it is crucial to examine the role of technology in education, particularly in mathematics instruction. However, it is equally important to consider the ethical implications and moral factors associated with the use of technology in the classroom. The advent of the Industrial Revolution has brought forth a transformative wave of technological advancements, reshaping societies and industries across the globe. In the realm of education, the integration of technology in mathematics instruction has emerged as a pivotal aspect, promising enhanced learning experiences and preparing students for the demands of the digital age. However, amidst this technological revolution, the role of morality as a mediator in teachers' use of technology in mathematics and their readiness for this era warrants careful examination. By delving into the ethical considerations, equity implications, student autonomy, data privacy, and professional development, we can unravel the complex relationship between teachers' moral perspectives and their utilization of technology in mathematics education. This exploration not only sheds light on the moral compass guiding educators but also illuminates the path towards responsible and effective technology integration, ultimately shaping the educational landscape for the era of the Industrial Revolution.

    Previous studies have extensively investigated the impact of technology on educational outcomes, focusing on student achievement, engagement, and motivation [1,2]. However, limited research has explored the role of morality as a mediator between teachers' use of technology in mathematics instruction and students' readiness to face the challenges of the Industrial Revolution era [3]. Understanding the interplay between teachers' moral perspectives, the integration of technology, and students' preparedness becomes crucial in shaping effective educational practices for the future [3]. The integration of technology in mathematics instruction has the potential to enhance students' learning experiences, promote critical thinking, and develop problem-solving skills. However, the responsible use of technology requires careful consideration of ethical considerations, such as privacy, equity, data security, and digital citizenship. Teachers play a pivotal role in navigating the ethical dimensions of technology integration and guiding students towards responsible and ethical technology use [4].

    Equity and access are significant moral issues that arise in the context of technology use in mathematics education. While technology has the potential to enhance learning opportunities, it can also exacerbate existing inequalities if not implemented thoughtfully. Teachers with a strong moral compass recognize the importance of equitable access to technology, considering factors such as socioeconomic disparities, availability of resources, and the potential for creating a digital divide among students. They strive to bridge these gaps and ensure that all learners have fair opportunities to engage with technology and its benefits [5].

    Lastly, teachers' readiness for the era of the Industrial Revolution and their ethical use of technology in mathematics education necessitate ongoing professional development. Teachers with a moral perspective engage in reflective practices, seek training opportunities that incorporate ethical dimensions, and collaborate with colleagues to address ethical challenges related to technology use in the classroom. By continuously honing their ethical reasoning and professional growth, educators can navigate the ever-evolving landscape of technology integration with a sense of responsibility and purpose [6].

    This study aims to investigate the effect of morality as a mediator between teachers' use of technology in mathematics instruction and students' readiness to face the era of the Industrial Revolution. By examining the moral perspectives of teachers and their influence on the integration of technology, this research seeks to uncover the ethical considerations inherent in the adoption and implementation of educational technologies. Furthermore, the study aims to explore how teachers' moral beliefs shape their instructional practices and ultimately readiness for the evolving demands of the modern workforce. Meanwhile, this study seeks to bridge the gap between technology integration, morality, and students' readiness for the era of the Industrial Revolution. By examining the morality dimensions of technology use in mathematics instruction, educators can ensure that the integration of technology aligns with moral considerations and fosters students' preparedness for the dynamic and technology-driven future.

    Technology use in mathematics education has been a topic of increasing interest and research. Studies have explored how primary school mathematics teachers in South Africa and Germany utilize educational technology, finding that teachers in both countries use it as a presentation, reinforcement, supplement, and problem-solving tool, as well as to stimulate the learning environment [7]. A scoping review of the literature revealed that technology integration into mathematics education is a distinct research area, with various research topics showing different trends over time [8]. Additionally, the COVID-19 pandemic has led to the transformation of teaching and learning in higher education, including the incorporation of technology-based pedagogy in mathematics education [9]. The development of the metaverse has also introduced new possibilities for technology use in mathematics education, with the potential for innovative teaching methods and improved mathematical development [10].

    Technology use in mathematics education in Indonesia and Malaysia varies. In Indonesia, efforts are being made to improve students' mathematical abilities and skills through comparative studies with Singapore, Japan, and Malaysia. While Indonesia and Malaysia initially relied on algorithms and memorization, they are now focusing on strengthening students' mathematical comprehension and problem-solving ability, with Malaysia also emphasizing the use of technology in mathematics education [11]. In Malaysia, the concept of Industry 4.0, which includes cyber-physical systems, Big Data, artificial intelligence, and the industrial Internet of Things, is being applied to increase the autonomy and effectiveness of decision-making and production processes. This has implications for teaching and learning practices in Malaysia, particularly in mathematics education [12]. Additionally, research in Indonesia has shown that performance expectancy and social influence are significant factors influencing mathematics teachers' intentions to use digital textbooks, which in turn affects their actual usage [13].

    Previous research has investigated the effects of technology use in mathematics education. For instance, a study by Eseryel et al. [14] and Al-Abdullatif and Gameil [15] found that technology integration positively influenced students' engagement and problem-solving skills. Similarly, Young [16] reported that technology-enhanced mathematics instruction improved students' conceptual understanding and achievement. These studies highlight the potential benefits of technology use in mathematics education.

    Morality in the context of technology use is a complex and evolving topic. As technology becomes increasingly integrated into our lives, questions arise about how to morally program technology and allocate moral authority [17]. Technology's role in ethical decision-making processes is limited, as it cannot "do" ethics the way humans do. Therefore, programming alternatives such as consequentialism and deontology are considered, with deontic logic as a starting point [18]. Additionally, technology should incorporate elements of meta ethics to handle scenarios that lead to conflicts in moral programming [19]. The use of AI-generated synthetic context can be valuable in detecting and quantifying moral sentiment, as shown in studies that leverage pretrained generative language models [20]. Furthermore, the increasing presence of technological artifacts as active mediators in human action challenges conventional notions of moral responsibility distribution [21]. Overall, the intersection of morality and technology requires ongoing exploration and ethical considerations.

    Morality plays a crucial role in guiding teachers' decisions regarding technology use in the classroom. Research by Xia et al. [22] emphasized the importance of ethical considerations when integrating technology, such as ensuring equitable access and addressing ethical dilemmas related to data privacy and security. Additionally, Hiep et al. [23] and Maass et al. [24] highlighted the role of social responsibility in promoting responsible technology use in mathematics education. These studies emphasize the ethical dimensions of technology integration.

    The concept of morality, which is described as temperament, character, or manners, expresses the established character structure in humans and the behaviors of individuals that occur under their own will. Although moral perceptions vary by time, society, and culture, they also exhibit mandatory and unchanging rules of behavior [25]. Applying moral principles ensures that technology and mathematical solutions are designed with a focus on benefiting humanity, considering human welfare, safety, and dignity, integrating moral values fosters a sense of accountability among researchers, developers, and users, encouraging responsible behavior and ensuring that individuals take ownership of the ethical implications of their work [26]. Believing in conspiracy theories about COVID-19 reduces adoption of health-related behaviors and policy support for public health measures. This relationship is mediated by moral identity and morality-as-cooperation, indicating that conspiracy beliefs are morally infused and should be addressed accordingly [27]. Organizational culture has a direct effect on leadership morality, which in turn has a direct influence on the internal control system [28]. The feasibility appeal is more effective in enhancing social media engagement for individuals with higher moral traits, while no significant difference between message framing emerged for individuals with lower moral traits [29]. Perceived moral acceptability and positive outcome expectations partially mediate the effects of social norms on the willingness to engage in nonmedical use of prescription drugs to enhance cognitive performance [30]. These findings highlight the importance of considering morality as a mediating factor in various contexts, including public health, organizational behavior, and consumer engagement.

    Several studies have examined the mediating effect of morality in the relationship between technology use and student outcomes. For instance, a study by McPherson et al. [31] found that teachers' ethical considerations mediated the relationship between technology use and students' academic achievement in mathematics. Similarly, Panisoara, et al. [32] reported that teachers' ethical decision-making mediated the relationship between technology use and students' motivation. These studies highlight the important role of teachers' moral considerations in shaping the impact of technology use on student outcomes. According to Sarbini [33] students who are able to apply ethical and moral education in this technological age will be able to control technology as a learning medium. On the other hand, students who do not have sufficient ethical and moral education will be controlled by technology. moral engagement with professional and ethical basis associated with the instructional strategy and application in virtual interaction, reference model demonstrates how the human with all the potency they behave can become a significant contribution to the society at large to enhance the abilities to improve their capacities to operate the technological tools wisely and appropriately [34].

    Morality plays a mediating role between teachers' use of technology in mathematics and their readiness. Teachers' Technological Pedagogical Knowledge (TPK) level may not align with their readiness in implementing online learning [35]. Mathematics teachers' readiness towards Education 4.0 is uncertain, indicating a lack of preparedness and knowledge about Education 4.0 [36]. The implementation of online mathematics learning in Indonesia faces obstacles such as limited technology skills among teachers and reliance on traditional resources [37]. Filipino secondary school teachers show readiness in Mathematics flipped classroom, and there is a significant relationship between teachers' profile and their readiness in this context [38]. Mathematics teachers' pedagogy with technology, including tools like GeoGebra, has a positive impact on students' performance in mathematics [39].

    The readiness for the era of the Industrial Revolution 4.0 is a crucial aspect that needs to be addressed. Several studies have examined the preparedness of different groups, including students, graduates, and the church, for this new era. Colleges play a vital role in preparing teacher candidates for the Industrial Revolution 4.0 by enhancing education quality and relevance [40]. Vocational High School (SMK) graduates need to possess work readiness skills such as technology adoption, communication, collaboration, adaptability, and critical thinking to face global job competition [41]. Universities and lecturers also need to be ready to face the demands of work in this era [42]. The church, as a community, needs to improve its resources and technological capabilities to avoid becoming obsolete in the future [43]. Overall, the readiness for the Industrial Revolution 4.0 requires individuals and institutions to adapt to technological advancements and develop the necessary skills to thrive in this new era [44].

    Readiness for the era of the Industrial Revolution encompasses the knowledge, skills, and attitudes necessary for adapting to and thriving in a technologically advanced society. Although limited studies specifically focus on readiness in mathematics education, research by Maryanti et al. [45] discussed the importance of developing computational thinking skills and digital literacy to prepare students for the demands of the Fourth Industrial Revolution. These findings underscore the relevance of technology integration in fostering students' readiness [3,45].

    A survey was carried out to evaluate the readiness of mathematics teachers in confronting the challenges posed by the industrial revolution. The survey methodology, as outlined by Creswell and Creswell [46], employed a quantitative research approach utilizing questionnaires to gather information from a selected sample. Through an analysis of the sample's characteristics, the study findings can be applied to a larger population. To capture data for this specific study, questionnaires were administered to the mathematics teachers was selected from Malaysia and Indonesia. The study samples for each country were determined using a simple random sampling technique, guaranteeing the inclusion of an appropriate number of teachers from both nations.

    The study encompassed a total of 231 mathematics teachers from Indonesia and 384 mathematics teachers from Malaysia. The participants were selected randomly, ensuring an equal chance for each teacher to be included. In Indonesia, the sample consisted of 59 male teachers, accounting for 25.5% of the total, while 172 female teachers comprised 74.5% of the sample. In terms of teaching experience, 26 participants (11.3%) had less than 5 years of experience, 65 (28.1%) had 5 to 10 years of experience, 97 (42.0%) had 11 to 15 years of experience, 19 (8.2%) had 16 to 20 years of experience, and 24 (10.4%) had more than 20 years of experience. Primary schools had 65 teachers (28.1%), middle schools had 71 (30.7%), and senior high schools had 95 (41.1%) teachers. In Malaysia, the sample included 88 male teachers, representing 22.9% of the total, and 296 female teachers, comprising 77.1% of the sample. In terms of teaching experience, 27 participants (7.0%) had less than 5 years of experience, 66 (17.2%) had 5 to 10 years of experience, 104 (27.1%) had 11 to 15 years of experience, 85 (22.1%) had 16 to 20 years of experience, and 102 (26.6%) had more than 20 years of experience. Primary schools had 260 teachers (67.7%), middle schools had 41 (10.7%), and senior high schools had 83 (21.6%) teachers. These demographic details provide an overview of the study sample composition in both Indonesia and Malaysia. They offer insights into the gender distribution, teaching experience, and representation across different types of schools among mathematics teachers in each country.

    The study employed customized assessment tools developed by the author to evaluate the preparedness of mathematics teachers in adapting to the industrial revolution, with a specific focus on their utilization of technology in mathematics and their moral understanding. Participants' responses were measured on a 5-point Likert scale, ranging from 1 (strongly disagree) to 5 (strongly agree). The assessment encompassed three main aspects: the technology use based on teaching and learning, teachers' readiness of IR4.0 and morality. However, each aspect had 5 items (see Appendix A). Readiness for the industrial revolution era involved assessing teachers' knowledge and attitude towards this era as a whole. It encompassed understanding the concepts and requirements of the industrial revolution era, as well as the necessary attitudes and mindset to address its challenges. Technological readiness examined teachers' knowledge, skills, and attitudes towards technology. It evaluated their familiarity with technological tools and their ability to effectively incorporate technology into their teaching practices.

    The study also considered teachers' sense of Morality and responsibility in fulfilling their professional duties. This aspect focused on their commitment to their role and their dedication to carrying out their responsibilities. However, the morality was measured using survey as developed by the author and its followed Likert scale to find out if the morality mediating the effect between mathematics teachers' readiness and technology use in industrial revolution era (IR 4.0). The use of technology and information is currently important for teachers in an effort to prepare themselves to face various educational challenges. The development of information and technology in the era of industrial revolution 4.0 is increasingly rapid and has become an important part of the world of education.

    To ensure the validity and reliability of the research instruments, experts in the content and language areas were consulted. A pilot study involving 150 mathematics teachers was conducted to assess the reliability of the instruments. Exploratory factor analysis (EFA) was utilized to examine the validity of the items and constructs developed. Additionally, a confirmatory factor analysis (CFA) test was performed with a separate sample of 150 teachers to further confirm the compatibility of the items with the proposed model. These rigorous methods were employed to ensure the validity and reliability of the research instruments, providing a solid foundation for assessing the readiness of mathematics teachers in the era of the industrial revolution. The outcomes of the exploratory factor analysis (EFA) reveal a Kaiser-Meyer-Olkin (KMO) score of 0.884 and a significance level lower than 0.001. Communalities values span from 0.552 to 0.866, all exceeding the 0.5 threshold. Eigenvalues for technology, morality, and readiness are 7.265, 1.761, and 1.300, respectively, all surpassing the value of 1. Additionally, the cumulative variance is reported as 68.8%, satisfying the minimum requirement of 60%.

    Table 1.  Rotated component matrix.
    Component Eigen value Variance
    Technology Morality Readiness
    F1 .683 1.300 8.7%
    F2 .594
    F3 .694
    F4 .734
    F5 .735
    C1 .819 1.761 11.7%
    C2 .752
    C3 .719
    C4 .813
    C5 .696
    B1 .807 7.265 48.4%
    B2 .801
    B3 .809
    B4 .886
    B5 .834

     | Show Table
    DownLoad: CSV

    The results obtained from the Confirmation Factor Analysis indicate loading factors for each variable that range from 0.63 to 0.92. The Chi-square/degrees of freedom (df) ratio is documented as 2.691, with the Goodness-of-fit Index (GFI) at 0.852, the Comparative Fit Index (CFI) at 0.922, and the Root Mean Squared Error of Approximation (RMSEA) at 0.070. The relationships among variables exhibit variations ranging from 0.48 to 0.66. In summary, these findings collectively suggest that the constructed model exhibits a high level of quality [45,47,48].

    Table 2.  Confirmation Factor Analysis (CFA).
    Factor Item Loading Factor Cronbach alpha CR AVE
    Readiness F1 0.65 0.827 0.831 0.501
    F2 0.63
    F3 0.75
    F4 0.68
    F5 0.80
    Morality C1 0.80 0.938 0.939 0.755
    C2 0.88
    C3 0.89
    C4 0.88
    C5 0.80
    Technology B1 0.92 0.948 0.949 0.790
    B2 0.92
    B3 0.90
    B4 0.87
    B5 0.83

     | Show Table
    DownLoad: CSV

    The internal validity of each variable, assessed through Cronbach's alpha values, falls within the range of 0.827 to 0.948, all of which exceed the required threshold of ≥ 0.70. Similarly, Composite Reliability (CR) values span from 0.831 to 0.949, also surpassing the ≥ 0.70 criterion. Additionally, Average Variance Extracted (AVE) values range from 0.501 to 0.790, meeting the established ≥ 0.50 criterion [44]. In summary, the validation factor analysis adheres to the predetermined criteria, indicating that the tested instrument is suitable for application in real research scenarios.

    This study utilized AMOS software and employs structural equation modeling (SEM) analysis to investigate the model of teacher readiness in confronting the industrial revolution. The primary objective of the SEM analysis is to examine the direct effects of Teachers' Use of Technology in Mathematics and Readiness on teachers' preparedness to face the challenges of the industrial revolution. The analysis investigates how Teachers' Use of Technology in Mathematics and Readiness directly influence teachers' readiness in adapting to the industrial revolution. Technology readiness refers to the level of knowledge, skills, and attitudes that teachers possess regarding the incorporation of technology in their teaching practices. Teachers' Use of Technology in Mathematics, on the other hand, examines the extent to which teachers engage in collaborative activities, share ideas, and support one another in their professional endeavors.

    Furthermore, the study explores the mediating role of morality in the relationship between Teachers' Use of Technology in Mathematics and their readiness to face the industrial revolution. Morality, in this context, pertains to the ethical responsibilities and obligations that teachers have towards their students, parents, colleagues, and society at large. The analysis examines how morality mediate the connection between Use of Technology in Mathematics and Readiness and their readiness to confront the challenges presented by the industrial revolution. By utilizing SEM analysis with the AMOS software, this study aims to provide a comprehensive understanding of the factors influencing teacher readiness in the era of the industrial revolution. It allows for the examination of both direct effects and the mediating role of morality, shedding light on the intricate relationships among Teachers' Use of Technology in Mathematics and Readiness, and overall preparedness to address the challenges and opportunities brought about by the industrial revolution. Do not add a full stop at the end of the table title.

    Figure 1.  Moral mediator effect in the contribution between technology and IR4.0 readiness of mathematics teachers in Indonesia.

    The impact of technology use on the readiness for IR4.0 among mathematics teachers in Indonesia was found to be statistically insignificant (β = 0.01, p > 0.05). Conversely, technology use was found to have a significant effect on moral (β = 0.88, p < 0.001). Moral was identified as a significant mediator in the relationship between technology use and IR4.0 readiness among mathematics teachers in Indonesia (β = 0.63, p < 0.001). This suggests that moral fully mediates the relationship between technology use and IR4.0 readiness. The statistical analysis also revealed a good model fit, as evidenced by the values of Chi Square/df = 1.920, GFI = 0.925, CFI = 0.963, and RMSEA = 0.063, supporting the indirect effect of technology use on IR4.0 readiness mediated by moral.

    Figure 2.  Moral mediator effects in the contribution between technology and IR4.0 readiness of mathematics teachers in Malaysia.

    The impact of technology on the readiness of IR4.0 is found to be statistically insignificant (β = 0.12, p > 0.05). However, there is a significant direct effect of technology on morality (β = 0.84, p < 0.001). Among mathematics teachers in Malaysia, moral plays a significant mediating role in the relationship between technology use and IR4.0 readiness (β = 0.46, p < 0.001). This suggests that moral acts as a mediator between technology use and IR4.0 readiness. The findings also indicate a good model fit, as evidenced by the values of Chi Square/df = 2.453, GFI = 0.932, CFI = 0.970, and RMSEA = 0.062, which support the indirect effect.

    The first key finding of this study is that the direct impact of technology use on IR4.0 readiness among mathematics teachers was not significant. This suggests that simply increasing the use of technology in classrooms may not directly translate into improved readiness for the Fourth Industrial Revolution. This finding aligns with previous research highlighting the complex and multifaceted nature of technology integration in education. It suggests that a more nuanced approach is needed to leverage technology effectively for enhancing IR4.0 readiness. However, the study did reveal a significant effect of technology use on teachers' moral. This finding underscores the importance of considering teachers' emotional well-being and motivation in the context of technology integration. It suggests that when teachers perceive technology as valuable and supportive, it can positively influence their moral levels. This finding resonates with previous research emphasizing the role of teacher attitudes and beliefs in technology adoption and implementation [26]. Furthermore, the study identified moral as a significant mediator in the relationship between technology use and IR4.0 readiness. This indicates that moral plays a crucial role in explaining how technology use influences teachers' preparedness for the Fourth Industrial Revolution. Higher moral levels were associated with a greater impact of technology use on IR4.0 readiness, suggesting that positive moral acts as a catalyst for teachers to effectively leverage technology in their instructional practices [34].

    The full mediation effect observed in this study implies that the influence of technology use on IR4.0 readiness is entirely explained by teachers' moral levels. This highlights the importance of fostering a supportive and positive work environment that nurtures teachers' moral. Strategies such as professional development programs, mentoring, and collaborative networks can help cultivate positive moral among teachers, enabling them to embrace technology and enhance their readiness for the Fourth Industrial Revolution. Verbeek [49] analyses of technological mediation, which have been elaborated and philosophy of technology, have major implications for the ethics of engineering design. The insight that technologies inevitably play a mediating role in the actions of users makes the work of designers an inherently moral activity. The overall results indicate that teachers are still not fully prepared and lack knowledge about Education 4.0 [35]. In terms of integrating technology in education, there is a gap between teachers' self-assessment of their Technological Pedagogical Knowledge (TPK) and their actual readiness in organizing online learning [36]. In Indonesia, mathematics teachers' ability to use technology during online learning is still limited, with most teachers relying on WhatsApp and Google Meet or Zoom for online teaching [37]. Filipino secondary school teachers were found to be ready in implementing Mathematics flipped classroom, and there was a significant relationship between teachers' profile and their readiness in this approach [38]. The idea that mathematics is an essential part of the core curriculum is relatively new, but studying mathematics and ethics together can expand cognitive capacities and promote mathematical literacy [50].

    The findings of this study provide important insights into the relationship between technology use, moral, and the readiness for IR4.0 among mathematics teachers in Indonesia. These results have implications for educational policymakers, administrators, and practitioners seeking to enhance teachers' preparedness for the Fourth Industrial Revolution. While this study offers valuable insights. Firstly, the findings are based on a specific context of mathematics teachers in Indonesia, limiting the generalizability of the results. Future research should explore the relationship between technology use, moral, and IR4.0 readiness in diverse educational settings and with different subject areas. Moreover, this study focused on the mediating role of moral, but there may be other factors at play. Future research could consider additional variables, such as teacher beliefs, self-efficacy, or organizational support, to provide a more comprehensive understanding of the complex dynamics influencing teachers' readiness for the Fourth Industrial Revolution. Teachers' readiness towards Education 4.0 and their attitude towards the use of technology in teaching mathematics were investigated in several studies

    In conclusion, this study examined the relationship between technology use, moral, and the readiness for IR4.0 among mathematics teachers in Indonesia. The results indicated that while the direct impact of technology use on IR4.0 readiness was not significant, technology use did have a significant effect on teachers' moral. Furthermore, moral was found to fully mediate the relationship between technology use and IR4.0 readiness, indicating that the influence of technology use on teachers' preparedness for the Fourth Industrial Revolution was entirely explained by their moral levels. These findings highlight the importance of considering teachers' moral as a crucial factor in shaping their readiness for IR4.0. It suggests that enhancing teachers' moral, such as through professional development programs or support systems, can positively impact their preparedness for the challenges and opportunities brought about by the Fourth Industrial Revolution. These insights have practical implications for education policymakers and administrators. By recognizing the significant role of moral in mediating the impact of technology use on IR4.0 readiness, efforts can be directed towards fostering a supportive and conducive environment that promotes positive moral among teachers. This can involve providing adequate resources, training, and support systems to enhance teachers' moral and, subsequently, their readiness for the Fourth Industrial Revolution. Further research could explore additional factors that may influence the relationship between technology use, moral, and IR4.0 readiness. Understanding these complex dynamics will contribute to the development of effective strategies and interventions to prepare teachers for the demands of the Fourth Industrial Revolution. Overall, this study sheds light on the interplay between technology use, moral, and readiness for IR4.0 among mathematics teachers in Indonesia, emphasizing the importance of considering teachers' moral as a crucial factor in shaping their preparedness for the future.

    The authors declare they have not used Artificial Intelligence (AI) tools in the creation of this article.

    The authors would like to acknowledge the financial support provided by PT Sawit Rohul Indonesia through Research Grant Scheme (IF02-2020).

    The authors state that they have no personal relationship(s) that might have inappropriately influenced them in writing the current paper.

    Research ethics approval was obtained by the Institutional Review Board On behalf of the University of Malaya Research Ethics Committee.

    Questionnaire

    The Readiness Model of Mathematics Teachers in Indonesia and Malaysia in Facing Industrial Revolution 4.0.

    Part A: Teacher's Background

    Instructions: Please mark [/] next to the answer that matches your situation and fill in the blanks in the space provided.

    1. Email : _______________________________

    2. Gender

    ⃞ Male ⃞ Female

    3. Teaching experience

    ⃞ 0-5 years

    ⃞ 6-10 years

    ⃞ 11-20 years

    ⃞ More than 20 years

    4. Education level

    ⃞ Degree

    ⃞ Master

    ⃞ Ph.D

    ⃞ Other

    5. Employment sector

    ⃞ Government

    ⃞ Private

    6. Type of Instition

    ⃞ Elementary School

    ⃞ Junior Highschool

    ⃞ Senior Highschool

    Part B: Teachers Readiness

    GUIDELINES: In this section are the items provided related to your readiness for industrial revolution 4.0.

    Please indicate your honest and sincere level of agreement with the statements below by circling any number based on the given scale; from a scale of 1 to 5; A score of 1 indicates a level of agreement that strongly disagrees, while a score of 5 indicates a level of agreement that strongly agrees. Please mark [/] on the answer options that have been provided.

    1 = Strongly Disagree (SD), 2 = Disagree (D), 3 = Slightly Agree (SA), 4 = Agree (A) and 5 = Strongly Agree (SA)

    No Readiness SD D SA A SA
    1 Confident to implement teaching and learning based on industrial revolution 4.0 1 2 3 4 5
    2 The courses and training provided by the ministry related to industrial revolution 4.0 are sufficient 1 2 3 4 5
    3 Willing to attend any course related to industrial revolution 4.0 outside the polytechnic 1 2 3 4 5
    4 Willing to pay his own expenses to attend courses related to industrial revolution 4.0 1 2 3 4 5
    5 Confident that the concept of industrial revolution 4.0 such as the automation of the "internet of things and big data analytics" provides many benefits to the career development of teachers and students. 1 2 3 4 5

    Part C: Moral

    Please indicate your honest and sincere level of agreement with the statements below by circling any number based on the given scale; from a scale of 1 to 5; A score of 1 indicates a level of agreement that strongly disagrees, while a score of 5 indicates a level of agreement that strongly agrees. Please mark [/] on the answer options that have been provided.

    1 = Strongly Disagree (SD), 2 = Disagree (D), 3 = Slightly Agree (SA), 4 = Agree (A) and 5 = Strongly Agree (SA)

    No Moral SD D SA A SA
    1 Telling the truth 1 2 3 4 5
    2 Prohibiting students from copying during the exam 1 2 3 4 5
    3 Active involvement in school activities 1 2 3 4 5
    4 Forgive students who make mistakes 1 2 3 4 5
    5 Always take the time to help students 1 2 3 4 5

    Part D: Technology Use

    Please indicate your honest and sincere level of agreement with the statements below by circling any number based on the given scale; from a scale of 1 to 5; A score of 1 indicates a level of agreement that strongly disagrees, while a score of 5 indicates a level of agreement that strongly agrees. Please mark [/] on the answer options that have been provided.

    1 = Strongly Disagree (SD), 2 = Disagree (D), 3 = Slightly Agree (SA), 4 = Agree (A) and 5 = Strongly Agree (SA)

    No Technology use SD D SA A SA
    1 The use of technology helps to plan the teaching process in the classroom 1 2 3 4 5
    2 The use of technology helps integrate the curriculum and the teaching and learning process 1 2 3 4 5
    3 The use of technology in the teaching-learning process makes students more motivated 1 2 3 4 5
    4 By using technology, students can apply real life in the teaching and learning process 1 2 3 4 5
    5 Consider technology as a valuable tool in student learning in the classroom 1 2 3 4 5



    [1] Higgins, K., Huscroft-D'Angelo, J. and Crawford, L., Effects of Technology in Mathematics on Achievement, Motivation, and Attitude: A Meta-Analysis. Journal of Educational Computing Research, 2019, 57(2): 283–319. https://doi.org/10.1177/0735633117748416 doi: 10.1177/0735633117748416
    [2] Bai H., Pan W., Hirumi A., and Kebritchi M., Assessing the effectiveness of a 3-D instructional game on improving mathematics achievement and motivation of middle school students. British Journal of Educational Technology, 2012, 43: 993–1003. https://doi:10.1111/j.1467-8535.2011.01269.x. doi: 10.1111/j.1467-8535.2011.01269.x
    [3] Mertala, P., Teachers' beliefs about technology integration in early childhood education: A meta-ethnographical synthesis of qualitative research. Computers in Human Behavior, 2019,101: 334–349. https://doi.org/10.1016/j.chb.2019.08.003 doi: 10.1016/j.chb.2019.08.003
    [4] Timotheou, S., Miliou, O., Dimitriadis, Y., Sobrino, S.V., Giannoutsou, N., Cachia, R., et al., Impacts of digital technologies on education and factors influencing schools' digital capacity and transformation: A literature review. Education and information technologies, 2023, 28(6): 6695–6726. https://doi.org/10.1007/s10639-022-11431-8
    [5] Hennessy, S. and Dunham, P., Equity Issues Affecting Mathematics Learning Using ICT. Research in Mathematics Education, 2002, 4(1): 145–165. https://doi:10.1080/14794800008520107. doi: 10.1080/14794800008520107
    [6] Layco, E.P., Mathematics Education 4.0: Teachers' Competence and Skills' Readiness in Facing the Impact of Industry 4.0 on Education. Journal of Positive School Psychology, 2022, 6(2): 1233-1259.
    [7] Saal, P.E. and Graham, M.A., Comparing the Use of Educational Technology in Mathematics Education between South African and German Schools. Sustainability, 2023, 15(6): 4798-4798. https://doi.org/10.3390/su15064798 doi: 10.3390/su15064798
    [8] Hwang, S., Flavin, E. and Lee, J.E., Exploring research trends of technology use in mathematics education: A scoping review using topic modeling. Educ Inf Technol, 2023, 28: 10753–10780. https://doi.org/10.1007/s10639-023-11603-0 doi: 10.1007/s10639-023-11603-0
    [9] Cullen, C.J. and Hertel, J.T., Improving our Criticism of Technology in Mathematics Education. Mathematics Teacher: Learning and Teaching PK–12, 2023,116(5): 314-321. https://doi.org/10.5951/MTLT.2023.0004 doi: 10.5951/MTLT.2023.0004
    [10] Naidoo, J., Technology-Based Pedagogy for Mathematics Education in South Africa: Sustainable Development of Mathematics Education Post COVID-19. Sustainability, 2022, 14(17): 10735-10735. https://doi.org/10.3390/su141710735 doi: 10.3390/su141710735
    [11] Nurlaili, D.A., Ananda, A., Wahyuni, Y., Gistituati, N. and Rusdinal, Comparison of Mathematics Learning Curriculum in Singapore, Japan, Malaysia, and Indonesia. International journal of research publications, 2022,103(1): 168-178. https://doi:10.47119/IJRP1001031620223398" target="_blank">10.47119/IJRP1001031620223398">https://doi:10.47119/IJRP1001031620223398
    [12] Jin, S.J., Abdullah, A.H., Mokhtar, M. and Abdul Kohar, U.H., The Potential of Big Data Application in Mathematics Education in Malaysia. Sustainability, 2022, 14 (21): 13725-13725. https://doi.org/10.3390/su142113725 doi: 10.3390/su142113725
    [13] Prabowo, A., Suparman, S., Li, C.S., Janan, D. and Damayanti, T.D., The effect of reading literacy to mathematics comprehension of elementary school students in Indonesia and Malaysia. International Journal of Evaluation and Research in Education (IJERE), 2023, 12(1): 546-554. http://doi.org/10.11591/ijere.v12i1.25714 doi: 10.11591/ijere.v12i1.25714
    [14] Eseryel, D., Law, V., Ifenthaler, D., Ge, X. and Miller, R., An investigation of the interrelationships between motivation, engagement, and complex problem solving in game-based learning. Journal of Educational Technology & Society, 2014, 17(1): 42–53.
    [15] Al-Abdullatif, A.M. and Gameil, A.A., The Effect of Digital Technology Integration on Students' Academic Performance through Project-Based Learning in an E-learning Environment. International Journal of Emerging Technologies in Learning (iJET), 2021, 16(11): 189–210. https://doi.org/10.3991/ijet.v16i11.19421 doi: 10.3991/ijet.v16i11.19421
    [16] Young, J., Technology-enhanced mathematics instruction: A second-order meta-analysis of 30 years of research. Educational Research Review, 2017, 22: 19–33. https://doi.org/10.1016/j.edurev.2017.07.001 doi: 10.1016/j.edurev.2017.07.001
    [17] Roy, S., Nakshatri, N.S. and Goldwasser, D., Towards Few-Shot Identification of Morality Frames using In-Context Learnin. arXiv preprint arXiv: 2302.02029, 2023.
    [18] Wernaart, B., Developing a roadmap for the moral programming of smart technology. Technology in Society, 2021, 64: 101466. https://doi:10.1016/j.techsoc.2020.101466 doi: 10.1016/j.techsoc.2020.101466
    [19] Qian, M., Laguardia, J. and Qian, D., Morality Beyond the Lines: Detecting Moral Sentiment Using AI-Generated Synthetic Context. In: Degen, H., Ntoa, S. (eds) Artificial Intelligence in HCI. HCII 2021. Lecture Notes in Computer Science, 2021, 12797: 84-94. Springer, Cham. https://doi.org/10.1007/978-3-030-77772-2_6
    [20] Inutsuka, Y., A Moral Ground for Technology: Heidegger, Postphenomenology, and Watsuji. In: Lennerfors, T., Murata, K. (eds) Tetsugaku Companion to Japanese Ethics and Technology. Tetsugaku Companions to Japanese Philosophy, 2019, 1. Springer, Cham. https://doi.org/10.1007/978-3-319-59027-1_3
    [21] Noorman, M., Computing and moral responsibility. Stanford Encyclopedia of Philosophy, 2018.
    [22] Xia, L., Semirumi, D.T. and Rezaei, R., A thorough examination of smart city applications: Exploring challenges and solutions throughout the life cycle with emphasis on safeguarding citizen privacy. Sustainable Cities and Society, 2023, 98: 104771.
    [23] Hiep, P.M., Tien, N.H., Dana, L.P., Kuc, B.R., Van Tien, N. and Ha, V.X., Enhancing social responsibility and sustainability in real estate industry. Turkish Journal of Computer and Mathematics Education (TURCOMAT), 2021, 12(14): 4999–5013.
    [24] Maass, K., Geiger, V., Ariza, M.R. and Goos, M., The role of mathematics in interdisciplinary STEM education. Zdm, 2019, 51: 869–884.
    [25] Kılıç, P., Ahlakındinitemeli. (The religious basis of morality) (7th Edition), Ankara: Türkiye Diyanet Vakfı Yayınları, 2012.
    [26] Forlini, S., Technology and Morality: The Stuff of Steampunk. Neo-Victorian Studies, 2010, 3(1): 72–98.
    [27] Kim, S., Baek, T. and Childs, M.L., Green Message Framing Effects on Social Media Engagement: Moderating Role of Morality Traits. International Textile and Apparel Association Annual Conference Proceedings, 2022, 78(1). https://doi.org/10.31274/itaa.13389 doi: 10.31274/itaa.13389
    [28] Lim, G.W., Mediating Role of Perceived Critical Selection and Moderating Role of Perceived Performance in the Relationship between Perceived Morality and Spectating Intention in the Future: National Team Selection of School Violence Perpetrator. Han'gug seu'pocheu san'eob gyeong'yeong haghoeji, 2022, 27 (6): 37–54.
    [29] Huber, S., Sattler, S. and Guido, M., Mechanisms of Perceived Social Norms: The Mediating and Moderating Role of Morality and Outcome Expectations on Prescription Drug Misuse in the Working Population. Deviant Behavior, 2023, 44(3): 359–380. https://doi.org/10.1080/01639625.2022.2046981 doi: 10.1080/01639625.2022.2046981
    [30] Marlina, L., Maifizar, A., Rahmadani, I., Maulina, R., Rahmazaniati, L., Husen, T.I., et al., The Role of Mediating Leadership Morality on the Influence of Organizational Culture on the Internal Control System. Proceedings of the First International Conference on Science, Technology, Engineering and Industrial Revolution (ICSTEIR 2020), 2021,293–299. https://doi/10.2991/assehr.k.210312.047
    [31] McPherson, A., Mackay, L., Kunkel, J. and Duncan, S., Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children. BMC public health, 2018, 18: 1–9.
    [32] Panisoara, I.O., Lazar, I., Panisoara, G., Chirca, R. and Ursu, A.S., Motivation and continuance intention towards online instruction among teachers during the COVID-19 pandemic: The mediating effect of burnout and technostress. International Journal of Environmental Research and Public Health, 2020, 17(21): 8002.
    [33] Sarbini, Challenging Ethics and Moral Education in The Age of Technology Among Student in Bandung. Edukasi Islami: Jurnal Pendidikan Islam, 2023, 12(3): 1837–1850. https://doi/10.30868/ei.v12i03.4215
    [34] Huda, M., Siregar, M., Ramlan, K.S.M., Teh, H.S., Jamsari, E.A., Rahman, S.K.A., et al., From live interaction to virtual interaction: Addressing moral engagement in the digital era. Journal of Theoretical and Applied Information Technology, 2017, 95(19): 4964–4972.
    [35] Fakhrunisa, F., Comparing mathematics teachers' technological pedagogical knowledge (TPK) and their readiness in organizing online learning. Journal of Physics: Conference Series, 2021, 1806(1): 012074. https://doi/10.1088/1742-6596/1806/1/012074 doi: 10.1088/1742-6596/1806/1/012074
    [36] Zulkipli, N.H. and Musa, M., Education 4.0: An Analysis of Teachers‟ Attitude towards the Use of Technology in Teaching Mathematics. International Journal of Information and Education Technology, 2022, 12(7): 609–614. https://doi/10.18178/ijiet.2022.12.7.1660 doi: 10.18178/ijiet.2022.12.7.1660
    [37] Faizah, H. and Sugandi, E., Analysis of The Elementary School Teachers' Ability to Use Technology on The Mathematics Online Learning. Indonesian journal of science and mathematics education, 2022, 5(1): 86–95. https://doi.org/10.24042/ijsme.v5i1.11021 doi: 10.24042/ijsme.v5i1.11021
    [38] Juarez, M.J.A., Marasigan, N.V., Natanauan, S.A.P. and Trinidad, G.M., Readiness in Mathematics Flipped Classroom of Filipino Secondary School Teachers. International Economic Review, 2018, 1(2): 95–103. https://doi.org/10.30560/ier.v1n2p95 doi: 10.30560/ier.v1n2p95
    [39] Aliyu, J., Osman, S., Daud, M.F. and Kumar, J.A., Mathematics Teachers' Pedagogy through Technology: A Systematic Literature Review. International Journal of Learning, Teaching and Educational Research, 2021, 20(1): 323–341. https://doi.org/10.26803/ijlter.20.1.18
    [40] Rosmiati, R., Sembiring, B., Rahim, A., Pudjaningsih, W. and Hutabarat, Z.S., How is the Readiness of Students to Become Teachers in the Industrial Revolution Era 4.0? Jurnal kependidikan, 2022, 8(4): 831–831. https://doi.org/10.33394/jk.v8i4.6248
    [41] Nurjanah, I., Ana, A. and Masek, A., Systematic Literature Review: Work readiness of vocational high school graduates in facing the industrial 4.0 era. Jurnal Pendidikan Teknologi dan Kejuruan, 2022, 28(2): 139–153. https://doi.org/10.21831/jptk.v28i2.48552 doi: 10.21831/jptk.v28i2.48552
    [42] Tanjung, B.N. and Elfrianto, The Effects of Academic Experience, Organizational Commitment and Motivation on Work Readiness in the Era of the Industrial Revolution 4.0. Webology, 2022, 19(1): 2695–2707. https://doi/10.14704/WEB/V19I1/WEB19179
    [43] Sumiwi, A.R.E., Prabowo, Y.S., Sembodo, J., Putri, A.S. and Prasetyo, E., The Church's Readiness for the Industrial Revolution 4.0. Proceedings of the International Conference on Theology, Humanities, and Christian Education (ICONTHCE 2021), 2022,699: 160–163. https://doi/10.2991/assehr.k.220702.037
    [44] Octavia, V., The Levels of Student Readiness in Facing the World of Work in the 4.0 Industrial Revolution Era. Jurnal Pembangunan Sosial, 2022, 5(1): 87–98. https://doi.org/10.15575/jt.v5i1.16074 doi: 10.15575/jt.v5i1.16074
    [45] Maryanti, N., Rohana, R. and Kristiawan, M., The principal's strategy in preparing students ready to face the industrial revolution 4.0. International Journal of Educational Review, 2020, 2(1): 54–69.
    [46] Creswell, J.W. and Creswell, J.D., Research Design: Qualitative, Quantitative, and Mixed Methods Approaches, Sage, Los Angeles, 2018.
    [47] Kline, R.B., Principles and practice of structural equation modeling (2nd ed.), Guilford Press, 2005.
    [48] Awang, Z., A Handbook on SEM Structural Equation Modelling: SEM Using AMOS Graphic (5th ed.), Kota Baru: Universiti Teknologi Mara Kelantan, 2012.
    [49] Verbeek, P.P., Materializing Morality: Design Ethics and Technological Mediation. Science, Technology, & Human Values, 2006, 31(3): 361–380. https://doi.org/10.1177/0162243905285847
    [50] Muntersbjorn, M., Morality and Mathematics. In: Larvor, B. (eds) Mathematical Cultures: The London Meeting 2012-2014, 2016,387-108. https://doi.org/10.1007/978-3-319-28582-5_22
  • Author's biography Assoc. Prof. Dr. Hutkemri Zulnaidi is an Associate Professor at the Department of Mathematics and Science Education, Faculty of Education, University of Malaya. He is specializing in mathematics education, technology in education, problem solving, assessment and measurement, statistics and quantitative research method. He is presently involved in several research projects on industrial revolution 4.0, lifelong learning, teaching innovation, learning support, burnout, soft skill, and teaching practices. He is also actively involved in research workshops statistical data analysis (SPSS, AMOS and Smart-PLS) and Research Methodology. He can be contacted at email: hutkemri@um.edu.my; Dr. Nofouz Mafarja is a Post Doctoral Follow at the Faculty of Technical and Vocational Education, Universiti Tun Hussein Onn Malaysia. She specializing in Physics education, technology in education, problem solving, academic self-concept, attitude learning physics and reading comprehension in science, assessment and measurement, statistics and quantitative research method. Her research focuses on STEM education, scaffolding in education, collaborative learning, word problem solving in physics, critical thinking skills. She can be contacted at email: nofouz@uthm.edu.my; Enny Oktavika is a seasoned educator with a rich background in mathematics education. With a distinguished career spanning over 16 years, Enny has established herself as a dedicated and passionate teacher. Her journey in education has been defined by a commitment to fostering a love for mathematics among students and creating innovative teaching approaches to inspire learning. She can be contacted at email: ennyoktavika1984@gmail.com
    Reader Comments
  • © 2024 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Metrics

Article views(1364) PDF downloads(85) Cited by(0)

Other Articles By Authors

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return

Catalog