A Self-Made Demonstration Instrument for the Relationship between the Sun and Shadows Based on STEAM Education Principles

基于STEAM教育理念对“太阳钟”一课的教具进行改进，通过分析发现该教具存在实验操作耗时长、实验器材零散等不足，采用发明技巧中的“珠联璧合”“一应俱全”对教具进行改进。该教具利用生活中常见材料制作完成，帮助学生构建起科学与生活之间的联系，改进后的教具实现了一体化，测量和记录数据也更加便利。利用该教具在提高实验效率的同时还能让学生掌握一年四季太阳变化的规律，为培养学生的核心素养奠定了基础。Based on the principles of STEAM education, this study improves the teaching instrument for the “Sun Clock” lesson. Through analysis, it was found that the original instrument had shortcomings such as time-consuming experimental procedures and scattered equipment. The improvements were made using inventive techniques such as “combining elements into a harmonious whole” and “incorporating all necessary features”. The instrument is constructed using common materials from daily life, helping students establish a connection between science and real-world applications. The upgraded instrument achieves an integrated design, making measurement and data recording more convenient. By using this instrument, experimental efficiency is enhanced, and students can better understand the patterns of solar changes throughout the four seasons. This lays a foundation for cultivating students’ core competencies.