高中化学教学中如何体现新教材在内容编排上的螺旋式上升?如何以同一知识为载体在不同阶段分层级培养学生化学观念?以“元素化合物知识”为例,提出了高中学习元素化合物知识的四个阶段,每个阶段的认知层级不同,相应的教学策略也有差异,这不仅有助于学生建构学科知识体系,更有利于学生发展化学基本观念。 How to reflect the spiraling of new textbooks in content arrangement in high school chemistry teaching? How to cultivate students’ chemistry ideas in different stages in different stages with the same knowledge? Taking the “knowledge of elemental compounds” as an example, Compound knowledge of the four stages, each stage of the cognitive level is different, the corresponding teaching strategies are also different, which not only help students construct a system of knowledge of the subject, but also conducive to students to develop the basic concepts of chemistry.