本研究针对浙教版初中科学教材中“日地月的相对运动”教学难点，为解决学生空间认知存在误区与现有教具不足等问题，设计一体化日地月相对运动演示仪。该装置采用模块化集成设计，融合球形灯、月球模型和摄像头投屏等组件，通过配重、双视角观测等创新，可同步演示潮汐锁定、月相、日食及月食现象。该实验装置可通过对比、动态演示破除认知误区，帮助学生构建日地月系统运动逻辑，提升其空间想象与探究能力。

This study addresses the teaching challenges of the topic“Relative Motion of the Sun, Earth, and Moon”in the Zhejiang Education Edition junior high school science textbook, targeting students’misconceptions in spatial cognition and the insuffi ciency of existing teaching aids. An integrated demonstration apparatus for Sun-Earth-Moon relative motion was designed. This device adopts a modular integrated design, incorporating components such as a spherical lamp, a Moon model, and a camera projection system. Through innovations including counterweight balancing and dualperspective observation, it can simultaneously demonstrate tidal locking, lunar phases, solar eclipses, and lunar eclipses. The experimental apparatus helps dispel cognitive misconceptions through comparison and dynamic visualization, assists students in constructing the logical framework of the SunEarthMoon system’s motion, and enhances their spatial imagination and inquiry abilities.