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《全日制义务教育数学课程标准》(实验稿)要求:数学教学活动必须建立在学生的认识发展水平和已有的知识经验基础之上,教师应激发学生的学习积极性,向学生提供充分从事数学活动的机会,帮助他们在自主探索和合作交流的过程中真正理解和掌握基本的数学知识与技能、数学思想和方法,获得广泛的数学活动经验。学生是学习的主人,教师是学习的组织者、引导者与合作者。采用讨论式的教学,既符合新课程标准的要求,也适合学生获得知识的需要。但是,初中学生因为还不成熟,教师如何引导学生讨论问题?怎样认识独立思考与讨论问题的关系?学生存在个体差异,教师在
The “Mathematics Curriculum Standard for Full-time Compulsory Education” (experimental draft) requires that mathematics teaching activities must be based on the students’ level of cognitive development and existing knowledge and experience. Teachers should stimulate students’ enthusiasm for learning and provide students with sufficient mathematics. The opportunity for activities helps them to truly understand and master basic mathematics knowledge and skills, mathematical thinking and methods in the process of independent exploration and cooperation and exchange, and gain extensive experience in mathematics activities. Students are the masters of learning, and teachers are the organizers, guides, and collaborators of learning. The use of discussion-based teaching not only meets the requirements of the new curriculum standards, but also suits the needs of students for acquiring knowledge. However, because junior high school students are still immature, how can teachers guide students to discuss issues? How to understand the relationship between independent thinking and discussion of issues? Students have individual differences, teachers are