现代认知心理学认为:学生学习的过程就是新旧观念的联系和同化过程,不受学习者原有认知结构影响的学习是不存在的,如果没有旧知作基础,学生学习新知就无从谈起。在一堂新授课中,“导入新课”上接“基本训练”,下延“新知讲授”,无疑要起“承旧启新”的“桥梁”作用。也就是说,组织“导入新课”要考虑怎样以旧引新、推陈出新,为学生学习新知做好知识准备。“以 In modern cognitive psychology, the process of student learning is the process of the connection and assimilation of old and new concepts, and the learning that is not affected by learners' original cognitive structure does not exist. Without the basis of old cognition, students can not learn new knowledge . In a new lecture, “basic training” followed by “new knowledge teaching” after “introducing a new course” undoubtedly serves as a “bridge” for “inheritance and innovation.” In other words, the organization “to import a new lesson” to consider how to introduce new, innovation, good knowledge of student learning to prepare. "With