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教学目的: 1、通过指导学生测量、统计树叶长度和人的身高,使学生对普遍存在的正态分布规律有一初步的感性认识。 2、进行简单统计方法的技能训练,使学生学会绘制条形统计图。 3、发展儿童初步的抽象与概括的能力,激发学生研究事物骨在规律的兴趣。 4、进行自然与数学横向联系及渗透高深科学概念的初步尝试。 教学重点与难点: 重点:通过测量统计发现正态健在规律。 难点:组织研讨,启发学生发现规律。
Teaching purposes: 1, by guiding students to measure, calculate the length of the leaves and the height of the person, so that students have a preliminary perceptual knowledge of the prevalence of normal distribution. 2, a simple statistical methods of skills training, so that students learn to draw a bar chart. 3, the development of children's initial abstraction and general ability to stimulate students to study the bone of interest in the law. 4, the nature and mathematics horizontal contact and penetration of advanced scientific concept of the initial attempt. Teaching Points and Difficulties: Focus: Through the measurement of statistics found that normal health in the law. Difficulties: Organization seminars to inspire students to discover the law.