product    name：Self-made clocks and watches

cargo    number：KSelf-made clocks and watches

package    loading：packageloading袋

Product size：21*1.5

Single weight：0.05

loading box several：350

box    gauge：60*55*45

Have a good friend，It can run without legs，Can shout but not speak，it能告诉你，When will it start?，When to sleep。Dear classmates，Can you guess what this is？
Are you really eager to know？it！it！It is a clock.，钟表为什么是one直不停地工作的呢？我们one起来探索吧！

Primitive people relied on the change of sky color、The luminosity of the sun is used to judge time。Ancient Egypt discovered that the length of shadows would change over time，Invented the sundial to keep time in the morning，They also found that the time required for water to flow was fixed，Therefore发明了水钟。Ancient Chinese people also had tools for keeping time by water——The copper pot is dripping，They also keep time by burning incense。Place the incense horizontally，Place a rope attached with steel balls on top，It has a time-telling function。
1283years在英格兰的修道院出现史上首座以砝码带动的机械钟。
13Monks in northern Italy began to build bell towers in the 21st century（Or called the clock tower），Its purpose is to remind people of the time for prayer。
16Table clocks began to appear in Germany in the middle of the century。那些钟只有one支针，The clock face is divided into four parts，To make time as accurate as possible15Minutes。
1657years，Huygens discovered that the frequency of the pendulum could be used to calculate time，A pendulum clock was made。1670years英国人威廉·Clement（William Clement）Invented the anchor-shaped escapement。
1797years，Eli, an American·Terry（Eli Terry）获得one个钟的专利权。He is regarded as the progenitor of the American watch industry。

The technological model mainly refers to the land,The sea,Empty model.Science and technology model activities integrate science and competition,动手和动脑为onebody,深受广大青少years的喜爱,Its main function is also to cultivate and enhance the comprehensive hands-on innovation skills and high quality of teenagers.Therefore,At the turn of the century.Deepen reform,大force提倡素质教育的新形式下,Actively carry out science and technology model activities,It is an effective measure for fully implementing quality-oriented education.
one Broaden one's horizons 丰富科学知识
Science and Technology model activities具有丰富的知识性,Take the nautical model for example:During the making of nautical models and the process of navigation,学生可以"UnderstoodThe ship为什么会漂浮 The ship是怎样保持稳定性的 螺旋桨为什么产生动force The ship怎样跑得快 "Titanic"Why didn't they sink immediately after being hurt and why couldn't they avoid the iceberg ……If one delves deeper,Students will come into contact with radio-controlled transmitting and receiving machines;"Understood(Or master)force,Density,"Gravity",Pressure,Magnetic field,The ship的构造,The structure and principle of an engine,Radio,Selection of materials……A lot of knowledge.There are many of them here"Textbook"Knowledge that is not available above but is often needed in life.This further inspires students about the inspirations that science and technology draw from animals,years能大胆想象,并做one个科技模型吗 Some think of dragonflies and planes,鱼形联想到鱼雷等并能制作one些简易的飞机模型等.In this way, students will be exposed to it in the science and technology model activities,Apply all kinds of knowledge,A lot of book knowledge has been supplemented,It broadened students' horizons,It has enriched students' extracurricular life,同时"Understood了更多的科学知识.
two Cultivate logic,思维能force
Science and Technology model activities,All participants are required to be dialectical in their thinking methods,"Wholeness和严格的Scientific nature."Though a sparrow is small,All the internal organs are complete".The small technological model is big,A real car,The ship,飞机按one定比例的缩小制作;it是one个整body,牵one发而动全身.
one架比赛留空时间的模型飞机,Both have to go through two stages: high-speed climbing and low-speed gliding,Adjustments to the climbing stage,主要是地拉force线和两半翼扭曲后的迎角大小的调整.Center of gravity position,机翼和平尾的安loading角及方向舵虽对飞机爬升的姿态也有one定的影响,But the changes in these parts,It directly affects the performance of the model during the gliding stage,Therefore, during the design and adjustment process,Comprehensive consideration must be given.,这两个阶段不同的受force情况和解决办法.For example"In the car,The ship,The strength of materials in the design and production of aircraft models,The selection of stiffness and weight is very careful,必须从two者中选one佳方案.Therefore,Science and Technology model activities,在思维方法上要求青少years必须具有辨证性,"Wholeness,Scientific nature,否则one个小小的失误,This will cause the performance of the produced technological models to deteriorate or even lead to their scrapping.
It can be seen that a person's initial thinking begins with actions.The thinking characteristics of students are mainly in the form of concrete and figurative thinking,Thinking cannot be separated from images and actions,Students are in the operation activity,You should keep your eyes open,Get your hands dirty,You still need to use your brain to think,Speak out,使外部的操作过程与内部的wisdomforce活动中的辨证性,"Wholeness,Combine scientificity and other aspects organically,This effectively promoted the development of their thinking.
three 培养良好的习惯
Science and Technology model activities有利于塑造学生良好的个性,Cultivate students' strong willpower and pioneering spirit,And be meticulous and patient,Form a scientific attitude of being rigorous in doing things, etc.
1,Arrange your time scientifically.Students are confronted with schoolwork and various interests,Specialty cultivation,都需要one定的时间和精force,Students must arrange their time scientifically and reasonably in order to be well-organized,Busy but not chaotic.
2,See things through from beginning to end.Nowadays, most students are only children,Afraid of hardship and lacking perseverance in doing things,Often give up halfway,If they choose activities that involve both hands-on and brainwork by themselves,让他们自己去想方设法来完成one件科技模型作product,兴趣又会高涨one些,因为他们都爱玩动force玩具,Approach the method from this perspective,It will also enable them to gradually overcome the inertia in the production process,And those who persevere in completing their masterpieces .This thus cultivated in them the habit of seeing things through from beginning to end.
3,Collectivist spirit.Dear classmatesone起设计,one起制作,one起比赛,Help each other from it,Compare with each other,Learn from each other.这样便培养了学生们的Collectivist spirit.Make students have others in their hearts,Learn how to get along with others.In this way under the conditions of a socialist market economy,才能与别人共创one番伟大的事业.像居里夫妇那样关起门来熬沥青的years代已经one去不复返了.Nowadays, society needs the cooperation of a talent group like the Apollo moon landing program to transform the world,Create the future.
four 激发学生探索科技领域的兴趣
one个科学家或发明家,There is no doubt that they have developed a strong interest in the things he loves,Then explore it,Study it,后在那one领域取得丰硕的成果.如今我们对学生进行科技模型的制作和组loading,让他们"Understood动force的形成,浮force的产生,Magnetic field的影响等,For their future interest in conducting research and exploration in this field,And lay a solid foundation,It also sowed the hope of success.
To sum up:Actively carry out science and technology model activities,It is the comprehensive implementation of quality-oriented education in schools,Cultivate students' morality,wisdom,body,beauty,All-round development of labor,Effective measures to enhance the comprehensive quality of cross-century workers and successors;Actively carry out science and technology model activities是贯彻,"Implementation《Several Opinions of the Central Committee of the Communist Party of China and The State Council on Strengthening Science Popularization Work》Mental and National Fitness Program,Fully implement what was proposed at the 15th National Congress of the Communist Party of China"Rejuvenate the country through science and education"Effective measures of strategy.