promotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve naturalresources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and development of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve theparty's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests growemployers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariat 北师大版四年级数学下册期末复习重点知识点梳理

数与代数

一 .小数的认识 小数的意义：

① 能用小数表示图中的阴影，或根据小数在图中图色。 ② 能正确读、写小数。

③ 能知道分母是10、100、1000的分数分别能用一位、两位、三位小数表示。并能

让这些分数与小数互换。

④ 能用小数表示日常的生活中的实物。 ⑤ 能在数轴上表示某个小数。 ⑥ 数位顺序及小数的组成。

⑦ 能把十进、百进、千进的计量单位用小数表示。 ⑧ 小数的大小比较。（先比较整数部分，再比较十分位...）

二，计算

1. 小数的加减法

①不进位、不退位。 1.2+3.4 6.6-1.3 ②进一位、退一位。 20.6+3.7 19.1-2.7 ③连续进位，连续退位。 12.75+2.25 71.13-16.55 ④位数不同。 16.3+2.75 60-2.88 2. 小数的乘法

①一般情况。 2.8×1.1 ②乘数中间有“0”。 1.06×3.3 ③乘数末尾有“0”。 1.06×470 ④积末尾有“0”。 8.5×0.88

⑤积与因数之间的关系。 0.49×0.9○0.49 15.8×1.23○15.8 ⑥小数点的移动引起小数大小的变化。 ⑦小数的性质。（在不改变1.3的大小的情况下，把它改写成两位小数） 3. 小数的除法

① 除数是整数。 1.5÷3, 21÷4 2÷5

② 除数是小数。 1.5÷0.3 21÷0.04 0.012÷0.25 ③ 商中间有“0”。 3.498÷3.3 ④ 商末尾有“0”。7÷0.35 ⑤ 验算。

⑥ 商与被除数之间的关系。0.49÷0.9○0.49 7÷1.02○7 0.125÷1○0.125 ⑦ 循环小数。 会判断循环小数、商用循环小数表示。 ⑧ 余数问题。（把一段长3.6米的绳剪成长为0.6米的小段，最多可以剪几段，还剩几米？） ⑨ 近似数。四舍五入法，或者根据实际情况求近似数，如去尾法、进一法。 ⑩ 估算。

4.混合运算。 要求：能简算要简算。 先判断运算顺序，再观察数据特点，看能否简算。

三. 方 程

1.会用字母或者含有字母的式子表示数量关系。 2.会用字母表示所学过的公式及运算律。

bviously, face China's Socialist system, the Communist Party is not the party. In that case, political chaos has been very tight. Is remodeling or reconstruction, is a correction or a stove. Whether to turn right or left, is back to the source or put forward new political ideas. This is to determine the road problems in China, is also the key out of the deep water of the reform of the economic system. After 18, the new Central collective leadership attaches great importance to political orientation. First, the \cles\ng point, starting from the Central Government's self-restraint, which preaches and pro-image, brought fresh feeling to the community. Secondly, before reform and opening up and reform and opening two periods after non-negative, untying the tangle of the society a long time on this issue. Third, a new generation of party leaders on various occasions to Mao Ze-Dong and Mao Ze-Dong's thought of evaluation has room for manoeuvre, through to the ruling ideology of Mao Zedong thought, is the call of the soul to the Socialist Revolution and construction. Empty talks jeopardize national interests and try again, is an affirmation of Deng Xiao-ping's reform ideas. These strong political signal showing a new generation of political leaders is still keeping to the Socialist road. Four is revisiting the \o Ze-Dong's historical cycle of\ofile anti-corruption and the importance of the Constitution, reorganization is bad style of officialdom, was to civilize people obey the law, while improving the color change of the regime of vigilance. Five is to reform into deeper waters and stressed that top-level design, this is a review on the reform and opening up in the past, is also looking for a way out. Six foreign and Russia closer, the flexible attitude on the issue of the Korean peninsula, Sino-Japanese fishing hardline China on the island out of the \nt\ow profile shadow began to gradually plan development. Signs show that the new leadership began to make a left turn in politics. However, as of right now, not only ideological confusion in the community, the new leadership's thinking is messy. New leaders both stressed the need to implement the Constitution, stressed the need to turn off the power in a cage. Also stresses that Mao Zedong thought cannot be lost, 30 years after the reform and opening up 30 years ago can not deny each other. Both advocate democracy and release \n does not speak of\cal constraints. Neither deny the history of the CPC Central Committee on several issues ...Comrades: today brings together members, mainly in order to provide a platform to Exchange and learn from each other in order to facilitate our work. Just now, we focus on taxation, planning and stability, safety, project construction, typical topics such as private facts presentation and interaction, and towns currently exist in the in-depth analysis of the problems to be solved, to explore new methods to solve the problem. It can be said that summing up the achievement, no grandstanding; analysispromotion of employment, form a reasonable and orderly pattern of income distribution, build a more fair and sustainable social security systems, medical and health system reform. The plenary, innovation of social governance, must focus on the maintenance of fundamental interests of the overwhelming majority of the people, maximize factors, enhance social development, improving social governance, the interests of national security, ensure that the people live and work, social stability and order. o improve social governance, stimulating social organization, innovative and effective system of preventing and resolving social conflicts, improving the public security system, set up the National Security Council, national security systems and national security strategy to ensure national security. Plenary session, the construction of ecological civilization, you must establish systems of ecological system, using the system to protect the ecological environment. o improve naturalresources asset property right system and use control, red line of delimitation of ecological protection, resources paid use system and ecological compensation system in ecological environment protection management system reform. Plenary session, centering on building a listening party command, can win and having a fine style of the people's army, a strong army under the new situation of the party Goals, restricting the development of national defense and army building is solved outstanding contradictions and problems, innovation and development of military theory, enhance military strategic guidance, improve the military strategy in the new period, building a modern military force system with Chinese characteristics. o deepen the adjustment of personnel system reform in the army, military policy and system reform, promote the development of military and civilian integration depth. Plenary session stressed that comprehensive reform must be to strengthen and improve theparty's leadership, give full play to the core role of the party commands the overall situation and coordinating all parties, improving the party's leading water ... Margin. Challenged the leadership of the Communist Party of China, Marxism-Leninism and Mao Zedong thought by Deng Xiao-ping's flag, replaced by three representatives and the harmonic society. The former Communist Party spirit and social cohesion point of almost all political makeover. Characteristics of socialism public ownership is shifting to private ownership, planned regulation and market regulation, the proletarian regime controlled by the elite. Of universal equality, fairness and basic principles of distribution system is socialist society, however after economic monopolized by powerful, vested interests growemployers do not have the same status, hardly seems fair social distribution. State key protection of capital interests rather than the interests of citizens, had been hits the bottom of the proletariat 3.知道什么是方程，会判断方程。 4.会解以下形式的方程：（a、b、c表示常数） x+a=b x-a=b ax=b x÷a=b ax+b=c ax-b=c ax+bx=c ax-bx=c 5. 列方程解决问题。（要注意方程的格式） 会找等量关系，利用等量关系准确设未知数，列出方程。

四．解决问题 （见书中例题和练习中的解决问题。） 空间与图形

一.认识图形

1.总的可以按平面和立体来分类。 2.三角形的分类：

①能通过目测、测量来识别不同三角形的特征，从而分类。

②按角分：钝角三角形、锐角三角形、直角三角形。 知道每种三角形的特征会判断。 ③按边分得到：等腰三角形和等边三角形。 ④三角形的内角和是180°。

⑤三角形三边的关系：任意两条边的和大于第三边 4. 四边形的分类

① 什么是平行四边形。 ② 什么是梯形。

③ 平行四边形与梯形的辨析。 5. 作图

① 三角形（钝角三角形、锐角三角形、直角三角形、等腰三角形和等边三角形。） ② 平行四边形 ③ 梯形

④ 综合作图（先画一梯形再画一条线把它分成一个梯形和一个平行四边形） 6.数图形中的学问

二.观察物体 不同位置观察物体的范围。不同位置观察物体的形状 （远近高低各不同） 三.图形中的规律 （用含字母的式子表示） 、

统计与概率

认识等可能性，能判断规则的公平性；能设计公平的规则。

bviously, face China's Socialist system, the Communist Party is not the party. In that case, political chaos has been very tight. Is remodeling or reconstruction, is a correction or a stove. Whether to turn right or left, is back to the source or put forward new political ideas. This is to determine the road problems in China, is also the key out of the deep water of the reform of the economic system. After 18, the new Central collective leadership attaches great importance to political orientation. First, the \cles\ng point, starting from the Central Government's self-restraint, which preaches and pro-image, brought fresh feeling to the community. Secondly, before reform and opening up and reform and opening two periods after non-negative, untying the tangle of the society a long time on this issue. Third, a new generation of party leaders on various occasions to Mao Ze-Dong and Mao Ze-Dong's thought of evaluation has room for manoeuvre, through to the ruling ideology of Mao Zedong thought, is the call of the soul to the Socialist Revolution and construction. Empty talks jeopardize national interests and try again, is an affirmation of Deng Xiao-ping's reform ideas. These strong political signal showing a new generation of political leaders is still keeping to the Socialist road. Four is revisiting the \o Ze-Dong's historical cycle of\ofile anti-corruption and the importance of the Constitution, reorganization is bad style of officialdom, was to civilize people obey the law, while improving the color change of the regime of vigilance. Five is to reform into deeper waters and stressed that top-level design, this is a review on the reform and opening up in the past, is also looking for a way out. Six foreign and Russia closer, the flexible attitude on the issue of the Korean peninsula, Sino-Japanese fishing hardline China on the island out of the \nt\ow profile shadow began to gradually plan development. Signs show that the new leadership began to make a left turn in politics. However, as of right now, not only ideological confusion in the community, the new leadership's thinking is messy. New leaders both stressed the need to implement the Constitution, stressed the need to turn off the power in a cage. Also stresses that Mao Zedong thought cannot be lost, 30 years after the reform and opening up 30 years ago can not deny each other. Both advocate democracy and release \n does not speak of\cal constraints. Neither deny the history of the CPC Central Committee on several issues ...Comrades: today brings together members, mainly in order to provide a platform to Exchange and learn from each other in order to facilitate our work. Just now, we focus on taxation, planning and stability, safety, project construction, typical topics such as private facts presentation and interaction, and towns currently exist in the in-depth analysis of the problems to be solved, to explore new methods to solve the problem. It can be said that summing up the achievement, no grandstanding; analysis