1设计说明1.1学情分析开放型问题分为条件开放型、结论开放型、策略开放型、综合开放型四类。经过基础知识的复习,学生已经初步建构了比较清晰的初中数学基础知识网络,也已经会解决一些简单的开放型问题。但由于缺乏综合能力,在解决比较复杂的开放型问题时能力还不够。因此,本专题的重点是知识的整合与能力的提升,难点是面对开放型问题时如何提出问题与分析 1 Design Description 1.1 Analysis of Academic Situation Open-ended issues are divided into open conditions, open-ended, open strategy, comprehensive open four categories. After the review of basic knowledge, students have initially constructed a relatively clear junior high school mathematics basic knowledge network, and also have already solved some simple open-ended questions. However, due to the lack of comprehensive capabilities, the ability to solve more complex open-ended issues is not enough. Therefore, the focus of this topic is the integration of knowledge and the improvement of its capabilities. The challenge is how to ask questions and analyze when faced with open-ended issues