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一、选择适合于数学教学的生活材料,凸现有用性《数学课程标准》指出:“素材的选择,要符合学生的年龄特征与生活经验,提供有趣的、具体的、富有一定启发性的活动(如游戏),让学生经历应用数学知识分析问题和解决问题的过程.”合理选择生活材料不仅要从知识系统出发,考虑前后知识之间的逻辑联系,更要关注数学知识与学生现实生活之间的联系,重视创设问题情境,重视学生学习过程中的心理准备状态.但实践中,教师普遍关注的是材料的新(新颖)、奇
First, the selection of living materials suitable for teaching mathematics, highlights the usefulness of “Mathematics Curriculum Standard” pointed out: “material selection, to meet the student’s age characteristics and life experience, to provide interesting, specific, full of inspirational activities (Such as games), so that students experience mathematical knowledge analysis and problem solving process. ”Rational choice of living materials not only from the knowledge system, taking into account the logical relationship between knowledge before and after, but also to pay attention to mathematical knowledge and student real life , Attach importance to the creation of the problem situation, attaches great importance to the psychological preparation of students in the learning process.But in practice, teachers are generally concerned about the material new (novel), odd