Non-fungible token (NFT) products are important for industrial applications. In recent years, they have rapidly gained importance in the field of blockchain combined with metaverse. The concept of NFTs has developed gradually, as many industries have begun using NFTs creatively to raise new business innovation opportunities in entrepreneurship. However, few studies have been conducted analyzing critical features of NFTs for success, trends, and challenges in NFT products. In this study, group discussions, case analysis methods, and the OpenSea database were used to analyze fashion trends among NFT products. A mixed method was used in this study. Quantitative and qualitative data derived from the questionnaire and group discussions were analyzed using the case study method, and the actual historical trading data of NFT products obtained from the OpenSea platform were analyzed. This study analyzed NFT products, fashion characteristics, and trends in NFT artwork. The opportunities and challenges of NFT applications and sustainable NFTs are discussed in this study. Our research results show that the most attractive NFT product types are collectible digital works and creative artworks. The critical design characteristics are lovely (cute), beautiful, and interesting. We recommend that NFT makers use the above-mentioned characteristics to create NFT artworks with special design characteristics to increase NFT values. The advantage of NFTs is that makers can freely create their works through the NFT platform, which can decrease the limitations of traditional methods such as the need for venues, exhibition setup costs, and intermediaries’ commissions. The major challenges of current NFT applications include usability challenges, security and privacy issues, and governance considerations. We believe that our research results can provide useful directions and strategies for future researchers, makers, and ventures seeking to develop NFT applications. Our research results, such as identifying the critical design factors and current trends in NFTs, can provide guidelines for art design and innovation education. In addition, this study discusses the applications of NFTs in sustainable education, which can provide benefits for sustainable educational development to meet the goal of quality education in SDG4.

Abstract-This study developed teaching materials of life application simulation animations, and introduced the concept of trigonometric functions into actual stories to create animations. This study took the famous ancient Chinese mathematical measurement book, Hai Dao Suan Jing for example, and created 3D simulation animations, auxiliary lines, and graphics. It is expected to help students to understand the allusions and mathematical formulas of Hai Dao Suan Jing, and learn to use their height, change of location, and change of related projection to measure the height and distance of objects on the ground. By watching 3D simulation animations, students can better understand the mathematics questions through dynamic visualization, learn the principles of surveying, and learn the spatial conception of trigonometric functions. The use of teaching with computer animations to attract students' curiosity regarding the application of mathematics to life can improve their imagination about surveying and simulation of spatial concepts.

No abstract

Abstract-This study developed digital multimedia materials to enhance college students' number sense in statistics course. Sample students' attitudes were assessed before and after the formal statistics course. Significant effects were found for four attitude subscales (Affect, Value, Difficulty, and Cognitive Competence), and the scores in attitudes (posttest-pretest) increased when digital multimedia educational materials used as a supplement in teaching statistics.

The pre-service education systems and research papers about level games, which give automatic answers and instant evaluation, are scarce. The system developed in this study could timely judge whether the answers chosen by students are right or wrong when they try to pass game levels and automatically provide the correct answers. In this study, learning units, such as store management practice, circulation management, and mathematics, were comprehensively designed into an animated game for students to play as new employees before beginning employment. Furthermore, the students were allowed to experience the problems and situations that shop service staff may encounter in the workplace. In this way, the students could increase their knowledge and experience in-store operation and customer relationship management in the workplace in advance. Thereby, the students could give better spontaneous responses after entering the workplace in the future. By using the level game designed by this study, students could also improve their service efficiency and professionalism, including store management and operation, as well as the intuition and insight of estimation and number sense ability. This level game contributes to pre-service education.