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统计是一种数学思想,也是认识客观事物、描述生活现象、分析事物表象、解决实际问题的一种方法。学生学习统计,一方面要理解并掌握一些基本的统计知识和方法;另一方面更要体会统计的意义和价值,使学生逐步形成从统计角度分析问题、解决问题的意识,发展统计观念。四年级下册“单式折线统计图”进一步体会统计在现实生活中的作用,理解数学与生活的密切联系,能根据统计图中的折线的起伏变化对数据进行分析,解决问题,在制作折线统计图时,让学生通过描点、连点成线段,在连点的过程中体会数据的增减变化,经历整理、描述、分析数据的全过程,使学生对折线统计图有了更深入的认识。
Statistics is a kind of mathematical thinking, but also a way to understand objective things, describe living phenomena, analyze appearances and solve practical problems. On the one hand, students should understand and master some basic statistical knowledge and methods. On the other hand, they should also understand the significance and value of statistics so that students gradually form a statistical analysis of the problem, the problem-solving awareness and the development of statistical concepts. Fourth grade book “single-fold line statistical chart ” to further understand the role of statistics in real life, to understand the close relationship between mathematics and life, according to the fluctuations in the chart of the ups and downs of the data analysis to solve the problem, at When making the line chart, let the students through the tracing point, with points into line segments, in the process of connecting points experience changes in the data changes, experience finishing, describing, analyzing the whole process of the data, so that students have more in-depth line graph Understanding.