《普通高中化学课程标准(实验)》明确指出:以培养学生完美人格和终身学习能力为宗旨,指导学生从更高的视野和境界上自我发展;培养学生的化学学科素养、化学信息素养、化学能力、合作能力和语言素养、化学思维素养、跨学科综合创新素养;正确的情感、态度和价值观等。初高中衔接期是学生进入高中阶段的一个关键过渡期,所以如何提高学生的化学核心素养是初高中衔接教学的重中之重。一、注重化学问题表征的“外显化”信息加工心理学认为:表征是形成概念、解决问题的核心环节。它可分为两种形式,即限制工作记忆容量 The Ordinary Senior High School Chemistry Curriculum Standard (Experiment) clearly states: With the purpose of cultivating students’ perfect personality and lifelong learning ability, they will guide students to develop themselves from a higher perspective and realm; cultivate students’ chemistry subject knowledge, chemistry information literacy, and chemistry Ability, ability to cooperate and language literacy, chemistry and literacy, comprehensive interdisciplinary literacy; correct emotions, attitudes and values. The transition period of junior middle school and high school is a key transition period for students entering the high school stage. Therefore, how to improve students’ core qualities of chemistry is the most important task of the secondary high school education. First, pay attention to the characterization of chemical problems “External display ” information processing psychology: characterization is the formation of the concept, the core problem of solving the problem. It can be divided into two forms that limit the working memory capacity