The Fourth Industrial Revolution (4IR) is transforming the way we live and work, and education is no exception. To cope with the challenges of 4IR, there is a need for innovative and sustainable teaching and learning tools. AI and block chain technologies hold great promise in this regard, with potential benefits such as personalized learning, secure credentialing, and decentralized learning networks. This paper presents a review of existing research on AI and block chain in education, analyzing case studies and exploring the potential benefits and challenges of these technologies. The paper also suggests a unique model for integrating AI and block chain into sustainable teaching and learning practices. Future research directions are discussed, including the need for more empirical studies and the exploration of ethical and social implications. The key summary of this discussion is that, by enhancing accessibility, efficacy, and security in education, AI and blockchain have the potential to revolutionise the field. In order to ensure that students can benefit from these potentially game-changing technologies as technology develops, it will be crucial to find ways to harness its power while minimising hazards. Overall, this paper highlights the potential of AI and block chain as sustainable tools for teaching and learning in the 4IR era and their respective advantages, issues and future prospects have been discussed in this writing.

翻译：第四次工业革命正在改变我们的生活和工作方式，教育也不例外。为了应对第四次工业革命的挑战，我们需要创新且可持续的教学工具。人工智能和区块链技术在这方面展现出巨大潜力，其优势包括个性化学习、安全认证以及去中心化学习网络等。本文综述了人工智能与区块链在教育领域的现有研究，通过分析案例探讨了这些技术的潜在优势与挑战。同时，本文提出了一种将人工智能与区块链整合到可持续教学实践中的独特模型，并讨论了未来研究方向，包括加强实证研究以及探索伦理与社会影响的需求。本文的核心观点是：通过提升教育的可及性、有效性和安全性，人工智能与区块链有望彻底改变教育领域。随着技术发展，为了确保学生能够受益于这些具有变革潜力的技术，如何在发挥其力量的同时最大限度地降低风险将成为关键。总体而言，本文强调了人工智能与区块链作为第四次工业革命时代可持续教学工具的潜力，并分别阐述了其优势、问题及未来前景。