Question 1: What is the order of introduction to the second lesson in the first semester of fourth grade

Introduction to depth, etc.

The Yarlung Zangbo Grand Canyon is diverse

Biodiversity

Summary

Question 2: In what order is Spring Tide written in the fourth grade, and what aspects are written? The text is described in chronological order. The formation process of spring tide in the north from small to large. Spring Tide describes: the formation process and majestic momentum of spring tide, guiding people to feel: the irresistibility of spring, full of masculinity. The symbol of the spring tide: the unstoppable force of revolution, excerpted from: "Bitter Cauliflower" by the famous Chinese writer Feng Deying

Question 3: In what order are the discoveries drawn from the world map of the fourth grade text described? Is it by events? Written in the order of development

Question 4: In what order is the essay written in the fourth-grade reading "Follow Confidence" 1. Compositions must learn to accumulate "Reading thousands of volumes, writing as if there is a spirit", "It is difficult for a clever woman to make a meal without straw" "These summaries of the ancients illustrate the importance of "accumulation" in writing from both positive and negative aspects. "Rely on accumulation in daily life, and rely on performance in the examination room." This is the common experience of students in the examination room.

(1) In terms of language, a "vocabulary library" must be established. Vocabulary is the cell of the article. Vocabulary in a broad sense refers not only to the collection of words and phrases, but also to sentences and sentence groups. There are two ways to build a "vocabulary": the first is reading. You should read extensively books, newspapers and periodicals, and take notes on your reading. Excerpt some beautiful words, sentences, and passages in a specific book, or make reading cards. The second is life. Usually, you should capture the vivid language spoken by the public and write down these words in a small notebook or card that you carry with you. In this way, over time, you will be able to speak well and write wonderfully in your compositions.

(2) It is necessary to strengthen the accumulation of materials. Materials are the flesh and blood of the article. Because many students don't pay attention to accumulating materials, they tend to make up or plagiarize every time they write. The way to solve this problem is to accumulate materials. If possible, you can bring a video camera and a tape recorder to observe life in depth, actively participate in life, and record your experiences in family life, campus life, and social life in a timely manner through sketching, diary writing, and observation notes. When recording, you should grasp the details and grasp the characteristics of people, things, objects and scenery. In this way, the articles written will have flesh and blood.

(3) Strengthen ideological accumulation. Point of view is the soul of the article. If the center of the article is not clear, or the intention is not profound, it often indicates that the author's thinking is superficial. Therefore, it is necessary to establish a "think tank". There are two methods: first, think well. "The more you think, the more you gain." You should think deeply at ordinary times and ask "why", "what" and "how" when encountering problems. In this way, we can see the essence through the phenomenon. You should also record the "sparks" of your thinking and the conclusions of your thinking at any time. The second is to compile, that is, to excerpt famous quotes, aphorisms, etc. In short, we must strengthen the accumulation of compositions and establish three major writing warehouses: "vocabulary library", "material library" and "thought library". They must be regularly inventoried, sorted and classified into categories, and they must be continuously enriched and expanded.

2. To write a good composition, you must first learn to observe

Mr. Lu Xun emphasized two points when answering the question of "how to write a good article" by literary youth: first, read more; It’s about practicing more. “See more” here means observe more. This shows that: to write good articles and master skilled article writing techniques, you must observe more and learn to observe. Observation is the necessary prerequisite and foundation for writing. The Russian novelist Chekhov earnestly warned beginners: "A writer must train himself to become an observer with a keen eye and never give up! - He must train himself until observation becomes a habit, as if it becomes second nature. "Turning observation into a habit and second nature is a skill that takes time to hone. It is very effective and a great skill.

You should pay attention to the people, things, scenery, and objects around you to obtain the materials you need for your composition: you should become interested in things that may not seem big but are actually very meaningful, and pay attention to the causes, processes, and results; you should Pay attention to how the plants in the campus flower beds change their colors throughout the year, and learn to inquire deeply to understand the ins and outs of these changes; you have to go out into the society, contact more people, observe their words and deeds, and think about something at any time. Merge them into the long river of your own thoughts. This is the process of observation. During the observation process, you should pay attention to the following points:

(1) Observation should never be limited to "seeing with your eyes". Observation in a broad sense and with more practical significance means mobilizing all the five senses of a person: listening with ears, feeling with body, and more importantly, thinking with heart and brain, so that such observation will be more delicate and profound. .

(2) Pay attention to the good use of "bad pen" during the observation process. As the saying goes: A good memory is worse than a bad writing. Many students see a lot every day and think a lot, but they are not good at writing it down at any time. This will make the observed material in vain and many valuable things will be wasted.

(3) Pay special attention to perseverance in observation. Don't suffer from "brain fever". Three minutes of heat is not beneficial to writing a good composition. You must observe and think about life throughout every day of your life, so that you can write wonderful articles. Learning to observe has a huge foundation and impetus for writing good compositions. Without observation, you will often find it difficult to write. I hope you can learn to observe, continuously cultivate and improve your observation skills, and make great progress in your writing practice.

3. If the idea is high, the literature will be better than the intention, that is, to establish the literature...gt;gt;

Question 5: Who have the main knowledge of mathematics in the second volume of fourth grade The teaching content, objectives, instructions and suggestions of the eighth volume of primary school mathematics in the teaching version: 1 Four arithmetic operations 2 Position and direction 3 Laws of operation and simple calculations Nutritious lunch 4 The meaning and properties of decimals 5 Triangle 6 Addition and subtraction of decimals 7 Statistics 8 Mathematics wide angle Little Butler 9 General Review of Unit 1 Four Arithmetic Operations Teaching Objectives 1. Enable students to master the order of operations involving two-level operations and correctly calculate three-step questions. 2. Let students experience the process of exploring and communicating to solve practical problems, experience some strategies and methods for solving problems, and learn to use two or three-step calculation methods to solve some practical problems. 3． Enable students to develop study habits such as careful examination of questions and independent thinking in the process of solving practical problems. Instructions and Suggestions 1. This unit mainly teaches and sorts out the sequence of mixed operations. Before mixed operations, students have learned to calculate two-step problems from left to right and know the function of parentheses. Here we mainly teach the order of operations involving two-level operations and organize the order of mixed operations they have learned. The main contents include: sorting out the order of operations at the same level (Example 1 mixed operation of addition and subtraction, example 2 mixed operation of multiplication and division), teaching and sorting out the order of two-level operations (Example 3 mixed operation of the sum (difference) of product quotient, two Mixed operations of quotient (product) and sum (difference)) and the order of operations containing parentheses (Example 5 three-step operation test questions containing parentheses), related to the operation of 0. 2. Organically combine problem solving with sorting out the order of the four mixed operations. This unit is combined with problem solving when sorting out the order of mixed operations. The purpose is to enable students to further master the strategies and methods of analyzing and solving problems in the process of solving practical problems, and at the same time realize the necessity of specifying the order of operations, so as to systematically master the order of mixed operations. 3. Organically combine the process of exploring problem-solving ideas with understanding the order of operations. This unit allows students to experience the necessity of stipulating the order of mixed operations and master the order of mixed operations during the process of solving problems. Therefore, when teaching, we must make full use of the vivid situations provided by the teaching materials, let students think independently, explore independently, and form steps and methods to solve problems based on cooperation and communication. What do you want first? How to calculate? What more could you ask for? What method is used to calculate it? What do you ask for in the end? How to calculate? Combine the steps of problem solving with the order of operations.

After students list the comprehensive calculation formula, they should also ask about the basis of each step of the calculation and the actual meaning of the expression, so as to encourage students to correctly summarize the order of operations of mixed operations. 4. Help students gradually master the steps and strategies for solving problems. The sequence of mixed operations in this unit is combined with problem solving, in which the steps and strategies for solving problems are one of the key points and difficulties. When teaching, attention should be paid to strengthening the analysis of quantitative relationships. When describing problem-solving ideas, students should be guided to see quantities through numbers and use the relationship between quantities to describe problem-solving ideas. For example, students can be guided to describe the idea like this: "First calculate how many people are received every day, and then calculate how many people are received in 6 days." Don't stop at the "first use 987÷3, then multiply by 6" description. Students may not be used to it at first, but they should gradually develop this analytical method. Unit 2 Position and Direction Teaching Objectives 1. By solving practical problems, students can experience the application of position determination in life and understand the methods of position determination. 2. Enable students to determine the location of objects based on direction and distance, and describe simple road maps. Explanation and Suggestions 1. This unit *** has 4 examples: Example 1 Determine the position of the object based on the two conditions of direction and distance. Example 2 Draw the position of the object on the map based on the direction and distance. Example 3 Understand the positional relationship. Relativity Example 4 Describe and draw a simple road map 2. Students have accumulated some perceptual experience of determining positions in daily life, and through the first period of learning, they have been able to move according to up, down, left, right, front, After that, the relative position of the object is described in eight directions: east, south, west, north, etc., and by determining the position of the object in which row and which number, we have initially understood that the position of the object can be determined by two conditions in the plane. . On this basis, this unit allows students to learn to determine the location of objects based on two conditions: direction and distance, and describe a simple road map. Enable students to further understand things from the perspective of orientation, perceive and experience the surrounding things more comprehensively, and develop spatial concepts. 3. Let students understand the importance of determining location based on real life situations. The teaching materials use real-life materials to enable students to understand the role and value of the knowledge they have learned. For example, through the situation of "Park Orienteering", it is elicited how to determine the position based on the direction and distance...gt;gt;