Explanation, summary and reflection of terms
The first chapter of thinking about cultivation involved the explanation of terms such as outlook on life, life purpose, life attitude, life value, values, etc. The outlook on life was a general view of life, covering the main contents of life goals, attitudes, and values. Among them, the purpose of life was the understanding and answer to the fundamental question of why people lived. It was the core of the outlook on life and had important significance in life practice. The attitude towards life indicated how people should live and reflected a kind of psychological tendency and mental state when people faced life. Life value included self-value and social value. Self-value was the meaning of an individual's life activities to himself, while social value was the meaning of an individual's life to society and others. The concept of value is the fundamental point of view about what value is, how to judge value, how to create value, and so on. Reflecting on the explanations of these terms, the various elements in the outlook on life were interconnected and influenced each other. The correct understanding of human nature was the basis of understanding these concepts. In reality, human nature was the sum of all social relations. This point of view revealed that human beings were the main body engaged in social practice activities in a certain social relationship, and social attributes were human nature attributes. This made life not an isolated individual concept, but closely connected with society. The purpose of life determines the direction of life, affects people's attitude towards life, and also restrains the realization of life value. Life attitude affects the choice of behavior and the degree of effort in the process of realizing life purpose, and then affects the realization of life value. The evaluation standard of life value reflects the value orientation of society, and also affects people's pursuit of life purpose and the formation of life attitude. Through the summary and reflection of these terms, one could better understand the relationship between individuals and society, as well as how to shape a positive and healthy outlook on life in society. Read more exciting novels for free
Dynamic stacking diagram explanation teaching reflection summary
The following is a summary of the teaching reflection on the dynamic stacking diagram: ** 1. Problem Analysis ** 1. ** The source of the heap map's chaos ** - The stacked map looked messy mainly because there were too many data comparison dimensions. This included comparisons between different antenna lines (i.e., comparing the sizes of different blocks in the same column) and the daily trend of the same line (comparing the sizes of the same blocks in different columns). 2. ** The direction to solve the problem ** - It was clear that the solution to the problem of stacking maps was to reduce the contrast dimension. In terms of the choice of methods to reduce the comparison dimension, although reducing the number of comparisons could reduce the dimension, it would reduce the difference of data comparison, which was not an ideal method. It was better to reduce the types of comparisons and divide the data into "flowers" and "green leaves". It was better to mark the "flowers" data with different colors. For example, drawing a red box on the color blocks of interest could make the comparison clearer. ** 2. Solution ** 1. ** Principle Description ** - The principle of achieving a specific data highlight effect was to use the same data to add two stacking diagrams and stack them together. In order to highlight the color block of interest (flower color block) in the superimposed upper chart, the data needed to be processed, turning the original multiple color blocks (such as six) into two color blocks, namely the color block of interest (flower) and the other color blocks (green leaves). 2. ** Instance Steps ** - Take the highlighted L04 line data as an example: - First, two auxiliary rows of data were added to a specific row (such as rows 8 - 9). The auxiliary 2 (flower) corresponded to the L04 line data, the auxiliary 19 (green leaf) was the sum of the L01 - L03 data, and the auxiliary 1 (green leaf) was used to "push" the color block of the auxiliary 2 (flower) to cover the color block of the later layer of the stack map. - Then, he added the auxiliary row data to the stack chart. Note that the data of auxiliary 1 (green leaves) was above auxiliary 2 (flowers). - Then, he set the secondary coordinate axis for the color blocks corresponding to auxiliary 1 and 2 in the chart, so that the color blocks in the auxiliary row were superimposed on the original chart. - Finally, he set the color block corresponding to the auxiliary 1 (green leaves) to be transparent and borderless. He set the color block corresponding to the auxiliary 2 (flowers) to highlight the color block corresponding to the L04 line (it can be set according to preference, such as using a red frame). 3. ** Dynamic Chart Realization ** - In order to achieve a dynamic chart that highlighted whichever line was selected: - You need to modify the data corresponding to Support 2 (Flowers). Use the Index function to automatically obtain the highlighted line data according to the data in the specified cell (such as J1 cell). - Changing the data corresponding to Support 1 (green leaf), using the SUM and Offset functions to obtain the sum of the data before the highlighted line. The role of the green leaf data was always to push up the flower data to cover the original stack map color block. In general, in the teaching process of the dynamic stacking diagram, it was necessary to clearly explain the causes of the problems, the principles of solving the problems, and the detailed operation steps. From the basic chaotic analysis of the stacking diagram to the realization of the complex dynamic diagram, it was necessary to gradually guide the students to understand and master the relevant knowledge and skills. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
How to write the teaching reflection and summary of ai generation? Video explanation
" How to Write an AI Generation Teaching Reflection and Review " video was mainly to teach everyone how to write an AI Generation teaching reflection and review. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Atomic structure diagram multiple-choice questions explanation lesson plan and reflection summary
The following is a lesson plan and reflection summary on the multiple-choice questions on the atomic structure diagram: ** 1. Teaching plan ** **(I) Teaching objectives ** 1. Knowledge and Skill Target - Students can accurately understand the meaning of each part of the atomic structure diagram, including the number of neutrons, the number of electrons, and the number of electrons in each layer. - Through the explanation of the multiple-choice questions on the atomic structure diagram, the students could master the methods to judge the properties of the atomic structure (such as the ability to gain and lose electrons, the chemical properties of elements, etc.). 2. process, method, goal - By analyzing the multiple-choice questions, the students 'logical thinking ability and comprehensive application of atomic structure knowledge were cultivated. - Guide students to learn how to extract key information from the atomic structure diagram to solve problems. 3. Emotions, attitudes, values, goals - To enhance students 'curiosity and desire to explore the world of microchemistry, and to cultivate students' rigorous scientific attitude. **(2) Difficulties in Teaching ** 1. ** Teaching Focus ** - The meaning and relationship of each part in the atomic structure diagram. - According to the atomic structure diagram, the chemical properties of the atom, the ability to gain and lose electrons, and so on were determined. 2. ** Teaching Difficulties ** - Understand the relationship between atomic structure and chemical properties, and accurately apply it to multiple-choice questions. **(3) Teaching process ** 1. ** Introduction of review (5 minutes)** - He briefly reviewed the composition of atoms, including the nucleus (neutrons and neutrons) and the electrons outside the nucleus. Ask the students about the relationship between the number of neutrons, electrons, and neutrons (for example, the number of neutrons in an atom is equal to the number of electrons outside the nucleus) to pave the way for understanding the atomic structure diagram. 2. ** Present the question (3 minutes)** - Show several typical multiple-choice questions on the blackboard or on the media, such as: - In the following atomic structure diagram, the metal atom is () - The atomic structure diagram is (give the specific diagram). The outermost electron number of the atom is (). It is easy to ()(gain or lose) electrons in chemical reactions. 3. ** Explain the meaning of each part of the atomic structure diagram (7 minutes)** - Take a simple atomic structure diagram as an example, such as the structure diagram of the Na atom. - The circle represented the nucleus, and the number inside represented the number of neutrons, which determined the type of element. - The arcs represented the electron layer, and from inside to outside, they were the first layer, the second layer, and so on. - The number on the arc represents the number of electrons on the layer. It emphasized the importance of the number of electrons in the outermost layer to the chemical properties of atoms. 4. ** Analysis question options (15 minutes)** - For the question of determining whether an atom represented a metal atom: - The number of electrons in the outermost layer of metal atoms is generally small (usually less than 4). The students were guided to observe the outermost electron number in the atomic structure diagram of each option and analyze which ones matched the characteristics of metal atoms. - Illustrate the characteristics of the atomic structure diagrams of common metal atoms (such as Na, Mn, and Al.) and compare them with the atomic structure diagrams in the options. - For the question of determining the ability of atoms to gain and lose electrons: - Explain the relationship between the ability of atoms to gain and lose electrons and the number of electrons in the outermost layer. If the number of electrons in the outermost layer was less than four, the atom would easily lose electrons. If the number of electrons in the outermost layer was greater than four, the atom would easily gain electrons. When the number of electrons in the outermost layer was eight (helium was two), the atom would reach a relatively stable structure and would not easily lose electrons. - According to the atomic structure diagram in the question, the number of outermost electrons was determined, and the ability to gain and lose electrons was judged. 5. ** Method summary (5 minutes)** - The key steps to solve the problem were to first clarify the meaning of each part of the atomic structure diagram, and then focus on the number of outermost electrons. According to the characteristics of the outermost electron number, the chemical properties of the atom, the type of element, and the ability to gain and lose electrons were judged. - Students were encouraged to do similar questions and master this method of solving problems. 6. ** Class practice (5 minutes)** - He gave a few similar multiple-choice questions on the atomic structure diagram and let the students practice on the spot. The teacher would patrol and guide the students to correct their mistakes in time. **(4) Reflection on Teaching ** **1. Success ** - The review and introduction segment effectively evoked the students 'memory of the knowledge related to atomic composition, laying a foundation for understanding the atomic structure diagram. - When explaining the meaning of each part of the atomic structure diagram, he used examples of common atoms to make the abstract concept more intuitive and helpful for students to understand. - In the process of analyzing the topic options, the students were guided to think by themselves, cultivating their logical thinking ability and knowledge application ability. - The classroom exercises could consolidate the knowledge learned in time and let the teacher understand the students 'mastery so that they could carry out targeted tutoring. **2. Inadequacies ** - For some students with poor foundations, it might still be difficult to understand the internal relationship between atomic structure and chemical properties. The teaching process did not pay enough attention to these students. - In the course of the explanation, the students might not have taken into account other possible misunderstandings, resulting in some students still making some unexpected mistakes in class practice. - The teaching method was a little monotonous, mainly based on the teacher's explanation. The students 'initiative and participation still needed to be further improved. **3. Enhancement measures ** - For students with poor foundations, they could arrange individual tutoring or design more basic exercises after class to help them consolidate their knowledge of atomic structure and gradually understand the relationship between atomic structure and chemical properties. - During the lesson preparation process, he analyzed the possible mistakes that the students might make in a more in-depth manner, prepared countermeasures in advance, and covered the possible problems more comprehensively during the lecture. - In the future, he could try to use group discussions, student explanations, and other teaching methods to increase student participation and stimulate students 'interest in learning. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
High school mathematics conical curve equation explanation teaching plan and reflection summary
**一、圆锥曲线方程讲解教案** # （一）教学目标 1. **知识与技能目标** - 学生能够掌握椭圆、双曲线、抛物线的标准方程及其推导过程。 - 能根据给定条件准确写出圆锥曲线的方程。 - 理解圆锥曲线方程中各参数的几何意义。 2. **过程与方法目标** - 通过对圆锥曲线方程的推导，培养学生的逻辑推理能力和数学运算能力。 - 经历从具体实例到抽象方程的过程，提高学生的抽象思维能力。 3. **情感态度与价值观目标** - 感受圆锥曲线方程的简洁美和对称美，激发学生对数学的兴趣。 - 在探究方程的过程中，培养学生勇于探索、敢于创新的科学精神。 # （二）教学重难点 1. **重点** - 椭圆、双曲线、抛物线标准方程的形式和推导。 - 根据条件求圆锥曲线方程。 2. **难点** - 圆锥曲线方程推导过程中的建系和化简。 - 理解不同圆锥曲线方程中参数的变化对曲线形状的影响。 # （三）教学方法 讲授法、探究法、讨论法相结合。 # （四）教学过程 1. **导入（5分钟）** - 通过展示一些生活中圆锥曲线的实例，如椭圆形状的盘子、双曲线形状的建筑轮廓、抛物线形状的拱桥等，引出圆锥曲线的概念。 - 提问学生对于这些曲线的初步认识，引导学生思考如何用数学语言来描述这些曲线，从而引入圆锥曲线方程的学习。 2. **椭圆方程的讲解（15分钟）** - 定义讲解：先给出椭圆的定义，平面内与两个定点\(F_1,F_2\)的距离之和等于常数（大于\(|F_1F_2|\)）的点的轨迹叫做椭圆。设\(|F_1F_2| = 2c\)，常数为\(2a(a>c>0)\)。 - 建系：以\(F_1,F_2\)所在直线为\(x\)轴，线段\(F_1F_2\)的垂直平分线为\(y\)轴建立直角坐标系。 - 推导方程：设椭圆上任意一点\(P(x,y)\)，根据椭圆定义\(\vert PF_1\vert+\vert PF_2\vert = 2a\)，利用两点间距离公式\(\sqrt{(x + c)^2+y^2}+\sqrt{(x - c)^2+y^2}=2a\)，通过移项、平方、化简等一系列运算，得到椭圆的标准方程\(\frac{x^2}{a^2}+\frac{y^2}{b^2}=1(a > b>0)\)，其中\(b^2=a^2 - c^2\)。 - 强调方程中\(a,b,c\)的几何意义，\(a\)为长半轴长，\(b\)为短半轴长，\(c\)为半焦距。 3. **双曲线方程的讲解（15分钟）** - 定义：平面内与两个定点\(F_1,F_2\)的距离之差的绝对值等于常数（小于\(|F_1F_2|\)）的点的轨迹叫做双曲线。设\(|F_1F_2| = 2c\)，常数为\(2a(0 < a < c)\)。 - 建系（与椭圆建系类似）。 - 推导方程：设双曲线上任意一点\(P(x,y)\)，根据双曲线定义\(\vert\vert PF_1\vert-\vert PF_2\vert\vert = 2a\)，利用两点间距离公式\(\vert\sqrt{(x + c)^2+y^2}-\sqrt{(x - c)^2+y^2}\vert = 2a\)，经过类似椭圆方程推导的运算过程，得到双曲线的标准方程\(\frac{x^2}{a^2}-\frac{y^2}{b^2}=1\)（焦点在\(x\)轴上）或\(\frac{y^2}{a^2}-\frac{x^2}{b^2}=1\)（焦点在\(y\)轴上），其中\(c^2=a^2 + b^2\)。 - 讲解方程中\(a,b,c\)的几何意义，\(a\)为实半轴长，\(b\)为虚半轴长，\(c\)为半焦距。 4. **抛物线方程的讲解（15分钟）** - 定义：平面内与一定点\(F\)和一条定直线\(l\)（\(F\notin l\)）的距离相等的点的轨迹叫做抛物线。定点\(F\)叫做抛物线的焦点，定直线\(l\)叫做抛物线的准线。 - 建系：以过焦点\(F\)且垂直于准线\(l\)的直线为\(x\)轴，\(F\)与\(l\)间的中点为坐标原点建立直角坐标系。 - 推导方程：设抛物线的焦点为\(F(\frac{p}{2},0)\)，准线方程为\(x =-\frac{p}{2}\)，设抛物线上任意一点\(P(x,y)\)，根据抛物线定义\(\vert PF\vert\)等于点\(P\)到准线的距离，即\(\sqrt{(x-\frac{p}{2})^2+y^2}=\vert x+\frac{p}{2}\vert\)，化简得到\(y^2 = 2px(p>0)\)（焦点在\(x\)轴正半轴上），还可以有其他形式如\(y^2=-2px(p > 0)\)（焦点在\(x\)轴负半轴上），\(x^2 = 2py(p>0)\)（焦点在\(y\)轴正半轴上），\(x^2=-2py(p > 0)\)（焦点在\(y\)轴负半轴上）。 - 讲解\(p\)的几何意义，\(p\)为焦点到准线的距离。 5. **课堂练习（10分钟）** - 给出一些简单的条件，如已知椭圆的焦点坐标和长轴长，让学生求椭圆方程;已知双曲线的渐近线方程和一个焦点坐标求双曲线方程;已知抛物线的焦点坐标求抛物线方程等。 - 巡视学生练习情况，及时给予指导。 6. **课堂小结（5分钟）** - 引导学生回顾椭圆、双曲线、抛物线的定义、标准方程及其推导过程。 - 强调在方程推导过程中的数学思想方法，如建系的合理性、化简运算的技巧等。 - 总结方程中各参数的几何意义。 **二、圆锥曲线方程教学反思总结** 1. **教学方法方面** - 采用多种教学方法相结合有助于提高学生的学习积极性。在讲解圆锥曲线方程的推导过程中，单纯的讲授法可能会使学生感到枯燥，加入探究法和讨论法，例如在推导椭圆方程时，让学生讨论不同的建系方法对推导过程和最终方程形式的影响，能够提高学生的参与度。 - 然而，在教学过程中，可能存在对某些学生的引导不够充分的情况。对于基础较差的学生，在推导方程时可能会遇到较多困难，教师需要给予更多的个别指导，确保每个学生都能跟上教学进度。 2. **教学内容方面** - 圆锥曲线方程的内容较为抽象，在教学中应注重将抽象内容具体化。通过大量的实例引入和图形展示，帮助学生理解方程的意义。但在实际教学中，可能在某些参数的几何意义讲解上还不够深入，导致学生在解题时不能很好地运用这些知识。 - 在方程的推导过程中，化简运算的步骤较多，学生容易出错。在今后的教学中，可以增加一些关于化简运算技巧的专项训练，提高学生的运算能力。 3. **学生学习方面** - 从学生的课堂反应和练习情况来看，大部分学生能够掌握圆锥曲线方程的基本形式和简单应用，但对于一些综合性较强的题目，如根据条件求圆锥曲线方程且涉及到多个参数的情况，学生的解题能力还有待提高。这可能是因为学生对圆锥曲线的定义和方程的理解还不够透彻，在今后的教学中需要加强这方面的复习和巩固。 - 部分学生在学习过程中对圆锥曲线方程的记忆存在混淆，例如椭圆和双曲线方程的区别，抛物线不同形式方程的条件等。教师可以通过对比教学、总结归纳等方法帮助学生更好地记忆。 <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>
An explanation of aesthetic terms?
The aesthetic style is a literary form that is dominated by aesthetic theme. It aims to express aesthetic feelings and thoughts through artistic means. This kind of style usually uses rich rhetorical devices and vivid descriptions to let the readers feel the existence of beauty in the reading process. The aesthetic style can be applied to all kinds of literature, including novels, poems, essays, plays, etc. For example, some modern novels began to try to express aesthetic emotions by depicting the complexity and contradiction of the inner world of the characters, while some poems created an aesthetic atmosphere through rhythmic language. An aesthetic style could not only enhance the artistic value and appeal of literary works, but also guide readers to think deeply about life philosophy and aesthetic ideas. Therefore, it has an increasingly important position in modern literature.
Explanation of literary terms
The literary terms were explained as follows: 1. Fiction1: A literary work that is primarily a story, usually through fictional plots, characters, and scenes to convey the author's thoughts and emotions. "Poetry: A literary form that is marked by rhyme, rhythm, and meter, usually through lyricism, description, and expression of the author's feelings and thoughts." Prose: A literary form that tells stories or express thoughts and feelings in a free and fluent language, usually not restricted by strict meter and rhythm. Drama: A literary form that is characteristic of performance, usually through characters, plots, and scenes to express social, political, and cultural phenomena. 5. Science fiction: A literary work that focuses on technology and extraterrestrial life, usually through fictional stories, to explore the relationship between the future, humans, and the universe. 6. Historical novel: A literary work that uses historical events as the subject matter and presents historical characters and events through fictional stories. Detective novel: A literary work with a detective as the main character who reveals the truth through reasoning and investigation. 8 Wuxia novel: A literary work that focuses on martial arts and Jianghu, usually through fictional stories to show the legendary experiences and struggles of Jianghu characters. Realist literature: a literary form that is characteristic of realism, often depicting the dark side of society and human nature by describing real society and characters. Romanticism: A form of literature that is characteristic of romanticism, usually expressing the author's dissatisfaction and pursuit of the real world by expressing emotions, describing dreams, and pursuing freedom.
Explanation of historical terms
Historical Romance (historical novel) usually refers to a literary form formed by processing, deducing, and shaping historical events in a fictional, exaggerated, or exaggerated manner. Historical Romance was a combination of historical events and fictional characters, plots, historical legends, etc. Through the processing and deduction of historical events and characters, a virtual world with imagination and creativity was constructed. In historical romances, characters often had unique personalities, abilities, and motives that would have a profound impact on the entire story. Historical Romance could not only show the true situation of historical events, but also provide readers with a different perspective and feeling from historical records through fiction and exaggeration, thus attracting readers 'interest and desire to read. Historical Romance is widely used in the fields of literature, entertainment and culture. It is one of the important components of Chinese literature.
The explanation of the terms of the text?
Text Theory refers to the abstract concepts of thoughts, values, emotions, and topics expressed by the author in literary works. The idea of the text was usually reflected through the language expression, dialogue, plot, and character shaping in the literary works. The thoughts of the text include the understanding and exploration of various topics such as nature, society, and human beings, as well as the emotional expression and interpretation of the meaning of these contents. The idea of a text can be expressed in different forms of literature, including novels, poems, essays, plays, and so on. In the study of literature Chinese the idea of text is regarded as an important basis for the evaluation and analysis of literary works. Through the analysis of the text in the literary works, we can better understand the content and meaning of the works, as well as the author's creative intention and emotional expression.
Explanation of psychological terms
Individual psychology was a discipline that studied individual psychological characteristics, psychological processes, personality traits, and psychological relationships. It mainly focused on individual differences, including individual intelligence, ability, personality, emotions, attitudes, values, and so on. The purpose of personality psychology research is to understand the differences between individuals in order to better understand and educate individuals. At the same time, personality psychology could also provide individuals with tools and guidance for self-recognition and self-improvement.
Explanation of the 24 solar terms
1. ** Beginning of Spring **: The first of the 24 solar terms, indicating the beginning of spring. At this moment, all living things were revived, Yang qi rose, and the earth began to thaw. The new year's farming activities were about to begin. 2. ** Rainfall **: Rainfall begins, increasing. As the temperature rose, the snow and ice melted, and the rainfall gradually increased. The air humidity continued to increase. 3. [Hibernation Awakening]: The spring thunder suddenly moved, waking up the hibernating animals in the ground. During this period, the temperature rose faster, and the spring thunder began to appear, waking up the dormant insects and other small animals. They began to move. 4. ** Vernal Equinox **: Day and night equinox. On this day, the sun shone directly at the equator, and the length of day and night was the same all over the world. After that, the days in the northern hemisphere became longer and the nights became shorter. It was the middle point of spring, marking that spring was already halfway through. 5. [Qingming Festival: The weather is clear and bright, and the vegetation is lush.] At this time, the climate was refreshing and warm, and the vegetation began to grow vigorously. At the same time, it was also the time for people to sweep graves and worship their ancestors. 6. ** Grain Rain **: Rain produces a hundred grains. Rainfall increased significantly, and grain crops grew healthily during this period. It was the best time to sow, move seedlings, and plant beans. 7. ** Beginning of Summer **: The beginning of summer. Since then, the temperature had risen, and all living things were growing vigorously. It was about to enter the peak season for crop growth. 8. ** Small Fullness **: It meant that the seeds of summer crops had begun to fill up, but they were not yet ripe. They were only small full and not yet full. 9. ** Grain in Ear **: The awn crops such as wheat are ripe. At this time, the awn crops such as wheat and barley had already matured and needed to be harvested in time. At the same time, it was also the busiest season for the sowing of late grain, millet, millet, and other summer crops. 10. ** Summer Solstice **: The hot summer is coming. On this day, the sun shone directly on the Tropic of Cancer. The northern hemisphere had the longest days and the shortest nights. After that, the days began to shorten. 11. ** Slight heat **:"Heat" means hot."Slight heat" means that the weather is starting to get hot, but it hasn't reached the hottest time yet. 12. [Great Heat: The hottest period of the year.] At this time, the temperature was the highest and the crops grew the fastest, but at the same time, many areas were prone to drought, floods and other weather disasters. 13. [Beginning of Autumn]: It marks the beginning of autumn. Autumn was the transition season when the weather turned from hot to cold, and then from cold to cold. After the beginning of autumn, the parasol tree began to shed its leaves, and one leaf knew autumn. 14. ** End of Summer **: Place, contains the meaning of hiding and ending. End of Summer means that the hot summer day is about to end. The temperature gradually dropped, and the heat gradually dissipated. 15. White Dew: The weather is getting colder. In the early morning, there will be many dewdrops on the ground and leaves. It is formed by the condensation of water vapor at night. 16. ** Autumnal Equinox **: Day and night equinox. On this day, the sun once again shot directly at the equator. The length of day and night was the same all over the world. After that, the days in the northern hemisphere became shorter and the nights became longer. It was the mid-point of autumn. 17. [Cold Dew: The temperature is lower, and the dew is colder. It's about to freeze.] The weather was already quite cold, and the crops might be affected by the low temperature. 18. ** Frost Descent **: Frost is the white ice crystals formed by the water vapor on the ground when it encounters cold weather. Frost Descent means that the weather is getting colder and frost is beginning to fall. It is the solar term for the transition from autumn to winter. 19. [Beginning of Winter]: The beginning of winter. After this solar term, the duration of sunlight continued to shorten, and the temperature dropped significantly. All things were collected to avoid the cold. 20. ** Snowy **: It started to snow, but the amount of snow was small. The first snow began to appear in the northern regions, while the southern regions began to enter winter, and the temperature gradually dropped. 21. ** Heavy Snow **: The amount of snow increases, and the possibility of snowfall is greater than that of light snow, and the range is also wider. Heavy snow often had a certain impact on transportation and animal husbandry. 22. [Winter Solstice: The arrival of the cold winter.] On this day, the sun shone directly on the Tropic of Capricorn. The days in the northern hemisphere were the shortest and the nights were the longest. After that, the days began to gradually increase. 23. ** Xiaohan **: It marks the beginning of the coldest day of the year, but it has not yet reached the level of extreme cold. 24. ** Great Cold **: The coldest time of the year. The weather was extremely cold, and many places were covered in ice and snow. The novel New Moon is equally exciting. Everyone is welcome to click and read it!