教学背景分析在课程标准中,本课属于“地球与宇宙”领域中天空中的星体之太阳系、银河系及宇宙空间的内容,在教材中属于大象版《科学》五年级上册《制作宇宙》、《修改模型》的内容。本课教学是从两课的学习内容中提炼出来的内容,希望借助模型使学生建立太阳系的概念,进而为后面认识银河系和宇宙的浩瀚打下基础。对五年级的学生来说,在知识上,学生已经认识 Teaching background analysis In the course standard, this lesson belongs to the solar system, galaxy and space contents of the stars in the sky in the field of “Earth and Universe”. It belongs to the eleventh edition of “Science Year 5” “,” Modify the model "content. This course is based on the contents of the two classes of learning content, hoping to use the model to enable students to build the concept of the solar system, and thus lay the foundation for the future understanding of the vastness of the Milky Way and the universe. For fifth-graders, students are already familiar with knowledge