Unit 7 Green Home - Broken Line Statistics Chart 七 绿色家园——折线统计图 Green plants have beautify the environment, maintain soil and water, make oxygen and purify the action such as air. 绿色植物有美化环境、保持水土、制造氧气和净化空气等作用。 Statistical Table of Per Capita Public Green Area of Binhai City and Linjiang City from 2008 to 2016 滨海市和临江市2008-2016年人均公共绿地面积情况统计表
What questions can you ask? 你能提出什么问题？ Cooperative exploration 合作探索 1. What is the change of per capita public green space area in Binhai City from 2008 to 2016? 1. 滨海市2008-2016年人均公共绿地面积变化情况怎样呢？ Let me draw it as a bar graph. 我用条形统计图来表示。 It can also be represented by a broken line graph. 还可以用折线统计图来表示。 First trace each point according to the size of the data. 先根据数据的大小描出各点。 Then line segments are used to connect each point in turn. 再用线段依次连接各点。 If you look at the statistics above, what do you find? 观察上面的统计图，你有什么发现？ The number of per capita public green area in Binhai City can be seen from the broken line statistics chart. 从折线统计图能看出滨海市每年人均公共绿地面积的多少。 Compared with the bar statistical chart, the broken line statistical chart can clearly show the change trend of the per capita public green space area in Binhai City from 2008 to 2016. 与条形统计图相比，折线统计图能清楚地看出滨海市2008-2016年人均公共绿地面积的变化趋势。 2. What is the change of per capita public green space area in Linjiang City from 2008 to 2016? 2. 临江市2008-2016年人均公共绿地面积变化情况怎样呢？ Let me draw it as a broken line graph. 我用折线统计图来表示。 If you look at the statistics above, what do you find? 观察上面的统计图，你有什么发现？
Lesson 2 2016 Statistics of Per Capita Public Green Area in Five Cities 2016年五市人均公共绿地面积情况统计表
A City 2008-2016 Statistics Table of Per Capita Public Green Area A市2008-2016年人均公共绿地面积情况统计表
What questions can you ask? 你能提出什么问题？ Cooperative exploration 合作探索 1. Which statistical charts are appropriate to represent the above two groups of data? 1. 分别选用什么样的统计图表示上面的两组数据比较合适呢？ The first group of data reflects the number of public green space per capita in the five cities. 第一组数据反映的是5个城市人均公共绿地面积的多少。 Which statistical graph can show the quantity clearly? 哪些统计图能比较清楚地表示数量的多少呢？ The bar graph is more intuitive. 用条形统计图比较直观。 The second group of data reflects the change of per capita public green space area in a city. 第二组数据是反映一个城市人均公共绿地面积的变化情况。 What's a good graph to use to show how the numbers are changing? 要反映数量的变化情况用哪种统计图比较好呢？ It is more appropriate to choose the broken line statistic chart. 选用折线统计图比较合适。 Think about it, how to choose the statistical graph reasonably according to the need to solve the problem? 想一想，如何根据解决问题的需要合理地选择统计图？ Wisdom square 智慧广场 Xiao Dong, Xiao Hua, Xiaoping, 3 students in a row to take a picture, how many different kinds of row? 小冬、 小华、小平、3个同学排成一行照相，有多少种不同的排法？ Cooperative exploration 合作探索 First determine the position of the first person, the other two people arrange freely,Count out how many permutations there are, and so on, so that you can not repeat, do not omit to count the total number of arrangement methods. 先确定第一个人的位置，其他两人自由排列，数出有几种排列方法，依次类推，这样可以不重复、不遗漏地数出一共有多少种排法。 Retrospection - general review 回顾整理——总复习 We have learned a lot this semester. Let's review it. 这学期学习的内容很多，我们回顾一下吧！ 1. What is the connection between decimal multiplication and division and integer multiplication and division? 1. 小数乘、除法与整数乘除法有什么联系？ 2. Decimal multiplication and division are calculated by converting integer division... 2. 小数乘、除法是转化成整数成除法来计算的…… 3. I understand the meaning of the equation, can solve the equation by the nature of the equation, and can write the equation to solve the practical problem. 3. 我理解了方程的意义，能用等式的性质解方程，并能列方程解决实际问题。 4. I know the characteristics of multiples of 2, 3, 5... 4. 我知道了2、3、5倍数的特征…… 5. I can draw the axis of symmetry of an axisymmetric graph, and also rotate and translate the graph. 5. 我会画轴对称图形的对称轴了，也会进行图形的旋转与平移了。 6. I will choose the appropriate statistical graph to describe the data. 6. 我会选择合适的统计图来描述数据。 When deriving the formula for calculating the area of a plane figure, we can first transform it into the figure we have learned... 7. 推导平面图形的面积计算公式时，可以先将它转化成已学过的图形…… |
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