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数学课程标准早已明确提出:“我们的数学过程应给学生提供探索与交流的空间.教材可以设置具有挑战性的问题情境,激发学生进行思考;提出具有一定跨度的问题串引导学生进行自主探索;提供一些开放性(在问题的条件,结论,解题策略或应用等方面具有一定的开放程度)的问题,使学生在探索的过程中进一步理解所学的知识”.而近年来中考数学试题方向也强调了注重开放性与探究性试题的设置,以便考察学生的思维广阔性和灵活性,综合性.开放式、探索题进
Mathematics curriculum standards have long been clearly stated: “Our mathematical process should provide students with space for exploration and exchange of teaching materials can be set challenging challenging situations to stimulate students to think; proposed a series of questions to guide the students to conduct a series of independent exploration ; Provide some openness (in the problem conditions, conclusions, problem-solving strategies or applications have a certain degree of openness) issues, so that students in the exploration process to further understand the knowledge learned. ”In recent years, the entrance exam math The direction of the exam also emphasizes the emphasis on open and exploratory test questions in order to examine the students’ broad and flexible thinking, comprehensive, open, exploration