The first volume of the fourth grade Chinese "The Secret of Flying at Night" teaching plan 1 [teaching goal]
1. I can recognize 1 1 new words, correctly pronounce the polyphonic word "Xi", write 14 new words, and write 12 words such as "radar" and "mosquito".
2. Learn to ask questions from different angles.
[Teaching Emphasis and Difficulties]
1. Learn to ask questions from different angles.
2. Be able to understand the text with the help of questions.
[Teaching process]
1. Can recognize 1 1 new words, correctly read the polyphonic word "Xi", write 14 new words, and write 12 words.
2. Understand the central idea of this article.
3. Learn to ask questions according to the content of the text. (key)
First, introduce literacy.
1. The teacher wrote "I can write" on the blackboard, showed pictures of bats and asked, "Do you know?" Call the students to answer, emphasize pronunciation and guide writing. After the students finished writing, the teacher asked three questions:
(1) The word "bat" is next to the word "insect". Is it an insect?
(2) A bat can fly, so is it a bird?
(3) What kind of animal is a bat? Where did you learn that?
We just met bats, so what is the relationship between the night flight of the plane and bats? Let's walk into the text together.
Second, check the preview and perceive the text as a whole.
1. Check the preview.
(1) Learn new words, focusing on the pronunciation of "Xi" and the writing of "namely". Students read and write, and check each other at the same table.
(2) Explain an important disyllabic word: Explain the meaning of the word "secret" according to the content of the text.
2. Understand the central idea of this article. Can you give the general idea of this text in your own words?
Main idea: Scientists have uncovered the reason why bats can fly at night through repeated experiments, and have been inspired. They installed radar on the plane to solve the problem of safe flight at night.
Third, the question angle: ask questions according to the content of the text.
1. Students read the text for the first time, think while reading, ask questions and communicate by themselves.
Health 1: Why does the article say that the plane is sailing in the clear night sky? This is a way to describe the hypothetical situation as the beginning of the article, which not only shows a vivid brushwork, but also successfully leads to the topic of "how can an airplane fly safely?" )
Health 2: There are two questions in the article: "How do planes fly safely in the dark night?" "Are your eyes particularly keen to see everything in the dark night?" Are these two questions important? Yes, they are very important. In the structure and content of the article, these two questions are interrelated and deepened step by step, which leads to the key contents of the article: how bats find their way and the secret that bats can fly at night. )
S3: How to explain the scientific principle of "radar" by combining the physiological characteristics of "bat"? It turns out that the antenna of the radar is like a bat's mouth, the radio waves of the radar are like the ultrasonic waves emitted by the bat, and the fluorescent screen of the radar is like the bat's ears. )
2. Teachers summarize and guide students to use the list of questions to find the angle of asking questions: "Everyone's questions are very valuable and seem to be put forward after careful consideration. Let's share some questions, communicate with the group members and make a list of questions. Read the list of questions in the group carefully. What did you find?
According to the students' findings, the teacher concluded: "The students are very smart and can ask questions according to the content of the text. This is our most common and familiar questioning angle. "
The fourth grade Chinese volume 1 "The Secret of Flying at Night" teaching plan 2 teaching objectives
Know 1 1 new words such as "bat" and "bat", correctly read the multi-tone word "Xi", and write 14 words such as "mosquito" and 12 words such as "mosquito".
Emphasis and difficulty in teaching
1, learn to ask questions from different angles.
2. Be able to understand the text with the help of questions.
teaching process
first kind
First, introduce new lessons to stimulate interest.
1. After reading the topic, students will definitely have questions: What is the secret of flying at night in this article? And what does the night flight of airplanes have to do with bats? Let's go into the text to find it. (blackboard writing topic)
During the rehearsal, we collected information about bats and radars. Please tell me what impressed you the most.
Students exchange the collected information and talk about their own understanding.
Courseware demonstration:
Bat: A mammal with a mouse-like head and trunk and a cortical membrane between its limbs and tail. It flies in the air at night and eats mosquitoes, moths and other insects. My eyesight is very weak, and I mainly rely on my own ultrasound to guide my flight.
Radar: A device that detects and locates targets by transmitting and receiving radio waves. Radio waves will be reflected when they encounter obstacles during propagation. According to this principle, the radar will emit radio waves, and then use the receiving device to receive the reflected radio waves, thus determining the direction, distance and size of the target. The use of radar is not affected by climatic conditions, and it is widely used in military, astronomy, meteorology, navigation, aviation and so on.
Second, read the text for the first time and clear the word barriers.
1, please read the text aloud. In the process of reading the text, circle the new words in this lesson and read the pronunciation of the new words correctly.
2. Courseware shows the new words in this lesson, and the teacher guides the reading and writing of the new words.
(1) The teacher focuses on confusing words and typos. For example, when writing the word "namely", pay attention to the font, and don't write more on the left; The word "investigate" is an upper and lower structure, and the following is "nine", which should be distinguished from the right half of "dig" when writing; To the right of "driving" is "history", not "official".
(2) Understanding the polyphonic word "system": system (j √) shoelace system (x √)
(3) Group members exchange the writing of new words with each other, dictate a few new words to each other, and correct each other.
3. Read the text silently and summarize the main contents of the text in concise language.
(1) Guidance: In order to summarize the main content of the text, you can look at the title of the text first, and then find out the relationship between the night flight of the plane and the bat according to the title. We can first find out the key sentences that show the relationship between them, and then sort out the relationship between them by rewriting the key sentences, so as to sum up the main content.
(2) Please find out the key sentences. (The first two sentences of paragraph 8. )
(3) Rewriting these two sentences can summarize the main content of the text. Who will say something?
Main contents: After repeated research, scientists have uncovered the secret that bats can fly at night and have been inspired. Modern aircraft are equipped with radar, which makes flying at night safer.
Summary: this link should be deepened step by step, starting with words, then reading the text, understanding the content of the text, summarizing the main meaning of the article, and laying the foundation for the next class.
Second lesson
First, review old knowledge and introduce new lessons.
1. Listen to the words drawn from the sketch, and correct them according to the words shown in the courseware.
We understood the main content of the text last class. Who can repeat it? Answer by roll call.
Everyone knows the main content of the text, so let's read this article carefully.
Second, read the text carefully and savor it.
(1) Courseware shows questions, and students read relevant paragraphs according to the questions.
Show courseware: What experiments have scientists done to find out the secret that bats can fly at night?
Students read the relevant paragraphs, think and find the answers to the questions, and report to the class.
Premise: blindfold the bat first and do the experiment, and find that the bat can fly at night without eyes. Then plug the bat's ears and mouth, and the bat will fly at night.
(2) We learned about three experiments conducted by scientists and the final experimental results. So, what conclusions did scientists draw through these three experiments? The courseware shows the forms and answers in turn according to the students' answers. )
Courseware presentation: How many experiments have scientists done? What was the result?
The number of experiments, experimental methods and experimental results Conclusion For the first time, bats were covered with bells, and none of them rang. Bats fly at night without touching the rope. It wasn't the eyes that jammed bat ears the second time. Bats run around like headless flies, and bells keep ringing. The bat flies at night, which is the third time that its mouth and ears cooperate to find its way.
Discuss and communicate in groups, summarize the answers and complete the form. The group elected representatives to communicate in the class.
(3) Is it enough to draw conclusions from scientific research? The main purpose of our scientific research is to get inspiration from it and use the research results to serve our lives. So, what have scientists learned from these experiments?
Read the last paragraph of the text and summarize the scientist's inspiration in concise language.
Presupposition: Scientists imitate the bat's method of exploring the road and install radar on modern aircraft to make the flight of the aircraft safer.
Design intention: guide students to start with the problem first, and then explore the process from experiment to conclusion. This research process can arouse students' interest in inquiry and stimulate their interest in science.
Third, divergent thinking.
Answer the following questions.
(1) Can an airplane fly safely at night only by radar?
(2) What is the use of ultrasound in life?
2. Do you have any questions after learning the text? Let's have a group activity: read the text and list your own questions.
You can ask questions from different angles, such as the content of the text, the writing of the text, and your life experience.
Discuss in groups, make a list of questions, and exchange answers in the class.
Default 1: Where can I use radar besides airplanes?
Radar is widely used in military, astronomy, meteorology, navigation and aviation fields.
Presupposition 2: What inventions in life are inspired by animals?
According to the wings of dragonflies, an airplane wing which can eliminate the danger of flutter is developed. According to the frog's eyes, the electronic frog's eyes were invented.
3. Read "Are they stems or roots" in after-class exercises? "Selected paragraphs, ask your own questions.
Default: What kinds of abnormal stems are introduced in the selected text? What explanation method does the author use when introducing abnormal stems?
(Learn to ask questions from different angles)
The fourth grade Chinese Book One "The Secret of Flying at Night" Teaching Plan 3 Teaching Objectives
1, knowledge target:
(1) Can write 14 new words in this lesson and know 12 new words in this lesson. Read and write the words "radar, mosquitoes, and even dexterity" correctly.
(2) Read the text correctly and fluently, and master the main contents of the text.
(3) Understand the relationship between safe flight at night and bat exploration.
2, ability goal:
(1) Deeply study and practice the methods of asking questions about the text content, and be able to ask valuable questions about the text content by yourself.
(2) Learn to ask questions from different angles and learn to solve problems through group cooperation.
3, emotional goals:
Stimulate students' interest in science, observation, thinking and exploration.
Emphasis and difficulty in teaching
1. Understand the relationship between the safe flight of aircraft at night and the exploration of bats at night.
2. Cultivate students' ability to ask questions from different angles.
Teaching preparation
multimedia courseware
Class arrangement
2 class hours
teaching process
first kind
Look at the picture first and stimulate the introduction.
1, diagram (bat and radar)
The teacher showed pictures of bats and radars in turn, and asked: Who can tell us something about it? Answer by roll call.
2. Reading question: Bats are animals, and radar is a detection instrument invented by human beings. These two completely different things, why should we use "and" in the subject to connect them? What is the connection between them?
Today, let's go into science and understand the relationship between them. (blackboard title: the secret of flying at night)
Second, read the text by yourself and learn new words.
1, pronounced correctly, marked with natural paragraph numbers.
2. Read the text freely and read the difficult sentences several times.
3. Read the text in turn in each group, help each other to correct their pronunciation in the group, and then read the text in sections by name, and the teachers and students collectively correct their pronunciation.
4. Courseware shows new words. (see PPT)
Name the new words and remind students to pay attention to the pronunciation of pictophonetic characters and "bat, lacquer, fluorescent, horizontal" and polyphonic word "Xi"
5. Browse the text quickly, draw sentences containing these words with strokes, look them up in the dictionary and understand the words according to the content of the text.
6. Communicate what you don't understand.
Third, review the text silently.
1. We have learned before that we can ask questions about an article from three aspects: What did the article write? Ask questions about the main content of the article; Why write? Ask questions according to the central idea of the article; How to write? Ask questions about the structure, expression, language and genre of the article.
2. Ask questions according to the main content of the article and solve the first question put forward by students in the article at the edge of the book: What is the relationship between bats and radar? Which sentence can be pointed out in the article? Please draw it.
After repeated research, scientists finally uncovered the secret that bats can fly at night. The plane is equipped with radar, imitating the way bats explore the road. Planes are also very safe to fly at night. )
3. Students observe the above questions and answers and combine the questioning skills we have learned. What did you find?
Yes, they are asking questions about the main content, and the answer is a summary of the main content of this article. When we ask questions, we can start with the title of the text, instead of asking questions like "What is the main content of this article".
5. What questions do you want to ask after reading the text?
6. Sort out the questions raised by students.
Fourth, class summary.
We summed up the main content of this article, and also understood that we can ask questions from the topic. Where can we start when we ask other questions? Students, think about it. We will continue to study next class.
Second lesson
First, check the import.
Students, recall the main content of the text "The Secret of Flying at Night" and answer it in one sentence. In this lesson, we will continue to learn the text and finish the study of this text by asking questions.
Second, focus on the problem and learn the text.
1, let's first understand the content of the text according to the problems in the examination and approval of the text and the questions after class.
2. What are the problems in the summary? What questions can I ask?
(1) How do bats fly safely at night?
(2) How do bats distinguish obstacles from prey?
(3) How do scientists explore the mystery of bats flying at night?
(4) What does the mystery of bats flying at night tell scientists?
(5) How can an airplane fly safely by using the information provided by radar?
Third, study the text and solve problems.
1, learn paragraphs 6 and 7: How do bats fly safely at night? How to distinguish obstacles from prey? This is a question for the students in the book.
Show courseware:
Bats fly at night, not by eyes, but by combining () and () to find their way.
When a bat flies, it emits () from (), and when it meets an obstacle, it reflects back. When it reaches its (), it immediately ().
2, learning 4-6 natural paragraph: How do scientists explore the mystery of bats flying at night?
Show courseware: After repeated research, scientists finally discovered the secret of bat flying at night.
3, pay attention to * * *:
How many times have scientists experimented with writing? How do you experiment every time? What is the result of each experiment? Read paragraphs 4-6 silently and fill in the blanks with concise and accurate words.
Time, experimental methods, experimental results and conclusions
After completing the form, teachers and students summed up the experimental conclusion: bats use their mouths and ears to find their way.
4. Read the seventh and eighth paragraphs silently. Refine key issues:
What does the mystery of bats flying at night inspire scientists? How to use the information provided by radar to fly safely?
5. Students practice drawing schematic diagrams.
Schematic diagram of teacher's blackboard writing:
Radar radio wave
Aircraft screen obstacle
What other questions can you ask about this paragraph? How is the working principle of radar similar to that of bat exploration?
Show courseware:
The antenna of the radar is like a bat's (), the radio waves emitted by the radar are like a bat's (), and the fluorescent screen of the radar is like a bat's ().
Fourth, add questions and expand.
1. After learning the text, can you still ask questions about this lesson from different angles?
2. Summary of the problem:
(1) What other inventions in life are inspired by animals?
(2) Why are the last two experiments not specifically written in this paper?
(3) Why does the article begin with an airplane?
4. Tell me what inspiration you have from these lists of questions.
5. Thinking about the problems behind the content of the text will help us to spread our thinking and gain more knowledge.
Fifth, class summary.
1. Analyzing the questions we ask can help us know how to ask questions about the text.
In this lesson, we not only learned scientific knowledge, but also learned to ask questions from different angles when reading the text. Asking more questions can help us understand the content of the text more deeply.
Sixth, expand training.
After reading the following passage, I can ask questions from different angles.
Potatoes and lotus roots are not roots, but stems. They hid in the soil and changed their appearance. Don't misunderstand them. This kind of abnormal stem has a general name, called abnormal stem.
There are several kinds of abnormal stems. Potatoes and ginger grow fat and fat, called tuber; Water chestnut, arrowhead and taro have round heads and brains, which are called bulbs; Onions and garlic grow petal by petal like scales, called bulbs; Lotus root and ginger look like roots and are called rhizomes.
Seven, homework after class.
Read books about the secrets of animals and plants and try to ask questions from different angles.
The fourth grade Chinese Book One "The Secret of Flying at Night" Teaching Plan 4 Teaching Objectives
1. Read the text, master the main content of the text, and understand the connection between the night flight of the plane and the bat's pathfinding.
2. Stimulate students' interest in science, observation and inquiry.
3. Collect and exchange information about bionics with classmates, and improve the ability of information collection and processing.
Teaching focus
By reading the text correctly and fluently, we can master the main contents of the text and understand the relationship between the night flight of airplanes and the pathfinding of bats.
Teaching difficulties
1. Stimulate students' interest in science, observation and inquiry.
2. Be able to ask questions from different angles and communicate with classmates.
teaching process
First, review the old knowledge.
1. Read the words together.
Bats, radars, mosquitoes, even if they are smart and keen, scientists are littering flies.
Prove that research obstacles change and imitate drivers.
2. Multimedia display bat map:
Teacher: Students, do you know what kind of animal bats are? (Student Introduction: Bat, Radar)
3. Teacher: What is the relationship between bats and radar? What interesting science stories have happened between them? Let's go deeper into the text and find the answer!
Second, understand the text.
1. After reading paragraphs 1 and 2, think about it: Why do you want to write night flights at the beginning of the text? (Attract readers to ask questions)
2. Transition: Through the phenomenon of aircraft running at night, this paper puts forward the problem of how to fly safely. So why can planes fly safely at night? (Student answers)
3. Read the third paragraph and think: What does this paragraph say?
The superb flying skills of bats have aroused scientists' thinking.
4. Where can I see that bats have superb flying skills? Draw the relevant sentences.
5. How do these phenomena make scientists think?
Are your eyes so keen that you can see everything in the dark night?
In order to find out this problem, scientists did many experiments more than 200 years ago. Next, please learn paragraphs 4 and 5 by yourself according to the table. Complete the form.
The results of the objective method of experimental sequence proved the first, second and third times.
A. say its name.
B. understand the "proof" first. Can you use the word "proof" according to the contents of three experiments?
C. check: if you are a scientist, please introduce your experimental process now.
Student representatives exchange learning situation.
I am a scientist, so I did it in my first experiment. )
7. Summary: Three experiments prove that-(multimedia demonstration, students reading)
"Bats fly at night, not by eyes, but by the combination of mouth and ears to find their way."
8. Bats fly by mouth and ears at night, so how do bats' mouths and ears cooperate? Read paragraph 7.
A. fill in the blanks.
B. Enjoy reading: Then let's be successful scientists again and learn the secret of bats' pathfinding!
9. Look at the eighth paragraph: What have scientists been inspired by the flying characteristics of bats?
Scientists imitated the bat's method of exploring the road and fitted the plane with radar.
10, so how does the radar find the way? Let's look at the radar pathfinding map again.
D. discuss at the same table and fill in the blanks.
E. schematic diagram of teacher operating courseware.
1 1. After learning the text, can you tell me why the topic uses "harmony" to connect bats with radar?
Scientists got inspiration from the experiment and research of bat pathfinding and invented radar, which is the connection between bat and radar, so the subject should be linked with "harmony".
12, think about it: What other inventions in life are inspired by animals? (showing pictures)
Fourth, summarize and expand.
Transition: students, people like this create and invent things by studying the structure and function of living things, and benefit mankind. This subject is called bionics. Human bionics has invented many things. Can you give some more examples?
Of course, there are still many biological secrets in nature that have not yet been discovered. Many places are worthy of human beings to use it to create inventions and benefit future generations. I hope everyone can stir it up. Do you have confidence?
Fifth, homework consolidation.
Title of performance: Imagine that one day, while flying at night, bats accidentally met a night plane. It was very surprised and talked to the plane. Students, what will they say?
1. Practice at the same table and act it out with actions.
blackboard-writing design
Bat and Radar is a popular and clear-cut popular science text.
1. "Interest is the mother of learning". Without interest, you can't learn Chinese well. I use audio-visual teaching to find the breakthrough point of teaching and stimulate students' thirst for knowledge. Classroom teaching is the main position to cultivate students' practical activities, which is of great significance to keep the close relationship between book knowledge and social knowledge, guide students to know the world, and cultivate students' interests and good study habits.
2. Pupils are quick to accept new things, lively and active is the child's nature, and easy to forget is the child's shortcoming. Let primary school students firmly remember what they have learned, so they must take the initiative to participate in learning and enter the role of self-exploration.
The Secret of Flying at Night, the first volume of Chinese in Grade Four, teaching plan 5 [teaching goal]
1. You can correctly pronounce 12 new words such as "Bat, Bat" through the preview. When the polyphonic word "Xi" is correctly pronounced, you can write 14 new words such as "Mosquito" and 12 words such as "Mosquito".
2. Learn to ask questions from different angles and clarify the methods of asking questions from different angles. Ask questions through group communication, and then have a deeper understanding of the text.
Teaching emphasis and difficulty: being able to think and ask questions from different angles.
[Teaching preparation]
Teachers: preview sheet, group question sheet, multimedia courseware, tablet computer.
Student: Complete the preview sheet.
[Curriculum] 2 class hours
Lesson 65438
[course objectives]
1. You can correctly pronounce 12 new words such as "Bat, Bat" through the preview. When the polyphonic word "Xi" is correctly pronounced, you can write 14 new words such as "Mosquito" and 12 words such as "Mosquito".
2. Learn to ask questions from different angles. (Emphasis and difficulty of this lesson)
[Teaching process]
First, the topic comparison leads to thinking
Comparing the two topics "Bat and Radar" and "The Secret of Flying at Night", let us think.
[Design intention: By comparing the old and new topics, it can arouse students' thinking, arouse students' interest in reading and desire to explore. More importantly, let students ask questions, appreciate and taste the language, and enrich their sense of language. ]
Second, read the text for the first time and sweep the obstacles.
1, test preview results
The first group of words: classification contains light words in the confirmation reading "mosquito, fly, rope, bell"
The second group of words: word-based literacy "system" and standardized writing.
The third group of words: there are many ways to understand the meaning of words such as "ultrasound, radio waves".
2. Summarize the full text.
Sort out the main points of the article and summarize the full text.
Presupposition: Scientists have uncovered the secret of bat flying at night through three experiments, and inspired by it, they invented radar and solved the safety problem of aircraft flying at night.
[Design intention: Through three-dimensional preview, we can independently understand the pronunciation and meaning of new words in the text. By understanding the special meaning and literacy of Chinese characters, students' understanding and love of new words can be increased. By providing a string of words to summarize the full text, the difficulty of generalization is reduced, the main points of generalization are grasped, and the generalization ideas are clarified. ]
Third, ask questions and ask questions from an angle.
1, pay attention to the lead and ask for a haircut.
Pay attention to the introduction of the text, communicate in groups, and sort out the questions raised in the preview.
2, the problem communication angle.
Take the initiative to find out the questions about words, sentences and paragraphs from the questions, and summarize the first question angle-content.
3. Concentrate on the experiment to find the angle
The author questioned, "Is it so keen that it can see everything clearly in the dark night?"
Focus on doing three experiments to find the second angle of questioning-writing.
4, continue to question the way to find.
Throw out the teacher's doubts when reading the article, continue to arouse students' thinking, and lead to different questioning methods in the writing of the article.
5. Practice finding angles after class
The two questions at the end of the article and the concentrated display of one question after class seek the third questioning angle-enlightenment.
[Design Intention: Students have no sense of angle and method when they start reading questions. Teachers need to gradually remove the angles and methods of asking questions from students' questions. First of all, through the exchange of questions raised by students, it is clear that they are asking questions about words, sentences, paragraphs, topics and full texts in the text, which can be summarized as the first angle-content. Focus on three experiments, sort out the text through tables, and students can find the second angle of questioning independently-according to the table writing method. Finally, the combination of questioning after the text and after-class exercises helps students find the third angle of questioning-enlightenment. This link is step by step, interlocking, gradually pushing away different angles and specific methods in the problem, and building scaffolding for the application of methods. ]
Fourth, summarize the methods and clear the train of thought.
1, text content;
2. The writing method of the article;
3. Text enlightenment.
[Design Intention: Summarize different questioning angles and specific methods such as content, writing, inspiration, etc., and have specific methods to build scaffolding, so that students can know more about how to ask questions. ]
Re-questioning verb (abbreviation of verb) after rereading the text
1. Write the new words in this lesson.
2. Using the questioning methods learned in this lesson, try to ask questions from the perspectives of content, writing and inspiration again, so as to improve the questioning in this lesson.
[Design intent: acquisition method, usage method and in-class learning are for active use after class and continuous improvement of problems. ]