"Dinosaur Flying in the Blue Sky" is a popular science article, which mainly introduces a hypothesis put forward by scientists according to the problems found in the research: birds are probably descendants of a small dinosaur. It confirms the exploration process of hypothesis and opens a scientific door for us to explore paleontology. The language is accurate and vivid, and the content is in-depth and interlocking.
Analysis of learning situation
The language of this text is accurate and vivid. On the basis of careful reading, students can develop rich and reasonable imagination according to the scenes described in the article, and integrate their own knowledge about dinosaur evolution. Adopting the learning method of asking questions, "independence, cooperation and inquiry", we can establish students' inquiry consciousness and cultivate students' scientific inquiry spirit on the basis of understanding the text.
Teaching idea
Create a rich teaching environment in teaching, highlight students' dominant position, let students enjoy personalized and free development space, and make the classroom full of vitality. At the same time, we should not ignore the basic knowledge of Chinese and basic training, and strive to achieve the harmony and unity of the two.
Academic goal
1. Learn the new words and phrases in this lesson and understand the main content of the text.
2. Read the text with emotion, understand how a dinosaur evolved into a bird, and say it in an orderly way.
3. Stimulate students' interest in learning and cultivate students' spirit of questioning, loving and studying science.
Emphasis and difficulty in teaching
1, key points:
Understand the content of the text and the evolution of dinosaurs flying to the blue sky.
2. Difficulties:
Understand the role of imagination in the text and the accuracy of the author's words.
Class arrangement
2 class hours.
teaching process
first kind
First, exchange information, stimulate the introduction of interest
Teacher: Students, you know and have heard of dinosaurs. Do you like them? You looked up a lot of information before class. Now let's talk, shall we?
1, the courseware shows dynamic pictures of various dinosaurs and birds. Tell me what characteristics you know about them.
2. We all know that dinosaur is a giant, and now it is extinct. However, who would have thought that this giant would be inextricably linked with flexible birds? This lesson will solve the mystery.
3, blackboard writing topic:
Dinosaurs flying into the blue sky
4. Read and solve problems:
It means that one of the lighter dinosaurs gradually lived on land and turned into air, and finally evolved into a bird.
Second, the overall perception, feedback preview
1, read the full text:
Read paragraph by paragraph by name and think:
What is written in the text? Which part are you interested in?
2. Check the mastery of new words:
(1) Read the word contest and display the new word screen:
Students, read in groups.
(2) Word guessing contest, showing the word screen:
A variety of colors, colorful-colorful flying in the air-flying high or soaring in the sky-the most important part of speaking or writing in the air-the finishing touch.
(3) Match words according to actions:
Show dynamic pictures about dinosaurs and birds, and know local words, such as:
(of dinosaurs) heavy and dull; Lightness, agility and flying ... 3. What is written in the text?
Third, read the key points intensively and understand the writing methods.
1, read to understand the evolution of dinosaurs flying into the blue sky, methods:
(1) Read it yourself first.
(2) Discuss again.
(3) Report:
The first one appeared in ... about the size of a dog ...
(2) tens of millions of years later, its descendants ... family. ...
(3) Among them, some ... look like birds. ...
They learned to glide ... birds flying in the blue sky.
2. Characteristics of reading comprehension and writing:
Accurate and vivid words, such as:
The first dinosaur on earth appeared about 200 million years ago.
(2) its descendants have multiplied into a huge family with different forms ... 3. In my own words, the evolution of dinosaurs flying into the blue sky.
4. Read your favorite paragraphs with emotion.
Second lesson
First, review the words and introduce new lessons.
1. Name new words and dictate local new words.
Last class, the students learned the evolution process of dinosaurs flying into the blue sky. And raised the question of how dinosaurs flew. Next, let's read the text carefully.
Second, read the sentiment and clarify the content of the text.
1, learn the first paragraph:
(1) Read a natural passage and draw which sentences have nothing to do with it.
(2) What do you mean by "irrelevant"? Who is "Du"? Summarize their differences in appearance and habits.
(3) Guided reading, individual reading and joint reading:
Teacher: In order to find the basis of human hypothesis, Chinese and foreign scientists have made arduous explorations. What did they find respectively?
2. Read the second paragraph silently, consider the different findings of Chinese and foreign scientists, and communicate in groups:
(1) The media put the last sentence of the second paragraph, "The discovery in western Liaoning showed the world the evidence of dinosaur feathers, and made the finishing point to draw this picture drawn by paleontologists".
(2) What does "the finishing touch" mean? Why is it a "finishing touch" pen?
⑶ Guide students to read the text with emotion and understand the mood of scientists in the learning process. Feel the meaning of ecstasy in reading.
Third, learn the third and fourth paragraphs.
1, read this part quietly by yourself, draw a good sentence that you think you wrote, and read it several times. What is this part about?
(Introduced the huge dinosaur family hundreds of millions of years ago. )
2. Read three or four paragraphs by name, and then discuss them in groups:
How did dinosaurs on land evolve to fly into the blue sky?
3. Complete the form:
A huge dinosaur family
The evolution of dinosaurs, their respective characteristics, the author's point of view 4. Considerations:
Among the contents described by the author, which is the most specific? What are the benefits of such a specific description?
Understand:
"A branch" refers to a certain branch of dinosaurs, not all of them.
"Long evolution" refers to a long evolutionary process.
In this big family, which dinosaurs evolved into the sky? how do you know
6. Read the full text again and imagine the evolution of dinosaurs flying to the blue sky according to the text.
7. Classroom communication:
Tell me about the evolution of dinosaurs flying into the blue sky in an orderly way.
8. Practice reciting the evolution of carnivorous dinosaurs into birds.
Fourth, learn the fifth paragraph.
1, read the fifth paragraph of the text for free, and consider:
How many sentences are there in this paragraph? What is the central idea of this paragraph?
What information does the sentence "I hope to reproduce this historical process" contain?
2. Understand:
With the discovery of more and more exquisite fossils, the realization of this wish in their lives is getting closer and closer:
To prove that birds evolved from dinosaurs, we can only rely on the collection of fossils. If we can show all the evolutionary processes from dinosaurs to birds in the form of fossils, there is no doubt that birds evolved from dinosaurs.
Read the last paragraph together.
Fifth, summarize the full text.
This paper assumes the evolution process from dinosaurs to birds. The explanation is concise and complete, which enriches our knowledge and stimulates our interest in exploring nature.
Sixth, accumulate language.
In the process of learning, we found that the meaning of many sentences in the text was expressed accurately. Please find and read them, for example:
After a long evolution, a branch of dinosaurs finally became a bird flying in the sky. Copy this sentence in the accumulation book.
Seven. homework
1, judge the following statements, tick "√" for the right and "×" for the wrong:
(1) Dinosaurs eventually evolved into a large family of birds. It took 30 million years for dinosaurs to evolve into birds. Feathered dinosaur fossils are the key to prove that dinosaurs can fly in the blue sky. () 2. Analyze the following sentences and tell me what is good:
After a long evolution, a branch of dinosaurs finally became a bird flying in the sky.
3. What was the evolution process of dinosaurs flying into the blue sky?
blackboard-writing design
3 1 dinosaurs flying in the blue sky
230 million years ago → tens of millions of years later → many years later → hundreds of millions of years ago, the first dinosaur in a huge family flew into the blue sky.
Teaching reflection
Dinosaurs Flying in the Blue Sky is a popular science article. The text is entitled "Dinosaurs Flying into the Blue Sky", which breaks people's inherent impression of dinosaurs and is quite attractive. At the beginning of the article, the heavy and dull dinosaurs and light and flexible birds, which seem to have nothing to do with people's impressions, are presented to readers in vivid language. In the teaching of this course, we should guide students to understand the evolution process of dinosaurs flying into the blue sky, understand the persistence and hardship of scientific workers in scientific research, and guide students to try to figure out the accurate and vivid language of the text. After taking part in this text, I have a new understanding of the teaching of scientific expository writing.
First, explain the emotional "reading" of the text.
Although scientific expository texts can't understand the emotions contained in the texts as deeply as other texts, there are also many emotional factors. For example, the first nature of the lesson "Dinosaurs Flying in the Blue Sky" shows heavy and dull dinosaurs and light and flexible birds in vivid language, which seems to have nothing to do with people's impressions. In teaching, I grasp the key words: emphasis, dullness and spirit to guide students to compare, stimulate students' curiosity about science, fully reflect students' emotional experience of reading aloud, and guide students to make scientific discussions.
Second, the language training of expository writing.
Chinese is a practical course. In the teaching of popular science expository texts, there are all kinds of explanation methods, but how to use these methods flexibly is rarely involved. It's like a swimming coach only talks about swimming knowledge and doesn't let swimmers get into the water. It is difficult for students to learn real explanation skills from it. In my teaching, there are two groups of words: "Talking about … and" Talking about … nature ". On the basis of reading sentences aloud, let students have full speech training, open their thinking about words and learn to use words, which fully embodies the instrumentality of Chinese. It also makes the teaching of scientific expository reading go out of the misunderstanding of just saying but not practicing and breaking away from the unity of Chinese instrumentality and humanity.
Reflections on the teaching of dinosaurs flying into the blue sky
This article is a popular science article, which mainly introduces a hypothesis put forward by scientists according to research: birds are probably descendants of a small dinosaur. This paper not only reveals the great discoveries made by scientists in paleontology research, but also opens a scientific door for students to explore paleontology and stimulates their strong interest in science.
Dinosaurs are too familiar to students. At the beginning of class, students can name more than a dozen dinosaurs and introduce them one by one. So I seized the opportunity to seize the excitement of my classmates and questioned: Can such a big dinosaur fly into the blue sky? How did it fly into the blue sky? Let the students read the text with so many questions and find the answers by themselves. However, in the past reading teaching, such problems often appeared. Sometimes, in order to make students understand the content of the text, the teacher asks questions over and over again, and the students answer. The classroom is fragmented and lacks the cultivation of students' autonomous reading ability. Moreover, some classroom teachers put it too big for students to start reading, which seems empty. How to do it just right? In fact, this also lies in the teacher's excavation and understanding of the teaching materials. Teachers' guiding position can not be ignored, and teachers should consciously guide students to think in what direction. Therefore, in this class, I designed a form for students. At first, students didn't know how to fill out the form, so I immediately gave a demonstration and guidance. Students' learning methods are clear and their enthusiasm is improved. They read the fourth paragraph of the text carefully, looking for the answer to complete the form. In the process of completion, I also clearly know the process of dinosaurs flying into the blue sky. Because of the hints in the table, the students' narrative is more organized. This also paves the way for students to describe this process in their own words.
Excellent Teaching Design "Dinosaurs Flying into the Blue Sky" Part II teaching material analysis
This is a popular science article, which mainly introduces a hypothesis put forward by scientists according to research: birds are probably descendants of a small dinosaur. At the end of the 20th century, scientists in China first discovered dinosaur fossils with feathers in western Liaoning, which provided evidence for people to imagine dinosaurs flying into the blue sky, and the changes provided evidence for the evolution of birds. This paper not only reveals the great discoveries made by scientists in paleontology research, but also opens a scientific door for students to explore paleontology and stimulates their strong interest in science. In the teaching of this course, we should guide students to understand the evolution process of dinosaurs flying into the blue sky, understand the persistence and hardship of scientific workers in scientific research, and guide students to try to figure out the accurate and vivid language of the text.
Teaching objectives
1, know 7 new words, write 13 new words, and correctly read and write words such as dinosaur, ferocity, dove, ecstasy, description, various shapes, lightness and agility.
2. Read the text correctly, fluently and emotionally, and recite the parts of interest.
3. Retell the evolution process of dinosaurs flying into the blue sky in an orderly way, and stimulate a strong interest in loving science and exploring knowledge.
Emphasis and difficulty in teaching
The key point is to guide students to understand the evolution process of dinosaurs, and the difficulty is to guide students to understand the accurate and vivid expression characteristics of the text language.
Design concept
The new curriculum emphasizes guiding students to learn independently and cooperatively. In this class, in order to break through the teaching difficulties, I grasped the fourth paragraph of the key paragraph, guided students to learn independently by filling in a form, explored how dinosaurs flew to the blue sky through cooperation and exchange, and explored the characteristics of the author's language expression. Then I read aloud in various forms to deepen my understanding, and then let students intuitively feel the narrative organization of the text through pictures. Finally, I asked students to tell the evolution process of dinosaurs in their own words, so as to achieve the purpose of internalizing and absorbing the language.
Teaching preparation
1. Arrange students to find and read information about dinosaurs before class, and organize students to communicate between classes to expand their knowledge and broaden their horizons.
2. Walking with the Dragon DVD.
3. Group before class, recommend the group leader and print the form.
Class arrangement
2 class hours.
teaching process
First, the creation of situational import
Play the time-space transition picture in DVD "Walking with the Dragon". The teacher explains: How did dinosaurs fly into the blue sky? Now, let's travel through just visiting, visit the Mesozoic Earth and see the evolution process!
Second, learn key paragraphs.
1, overall impression:
Students are free to read the fourth paragraph. What is this paragraph about? (Introduced the huge dinosaur family hundreds of millions of years ago).
2. Fill in the form:
(1) screen display form:
According to the content of the text and the hints in the table, underline the key words to write the characteristics of dinosaurs in the text and fill in the table, thinking about what methods the author used to explain them.
Evolution of dinosaurs flying into the blue sky
A huge dinosaur family
chronological order
Reproduction situation
Their characteristics
The method explained by the author
230 million years ago
The first dinosaur
Tens of millions of years later
Different shape
A large family
(among them)
Carnivorous dinosaur
⑵ Students read the text silently and learn independently according to the prompts. First, draw the key words and think about the author's expression.
3. Cooperate to fill in the form (briefly fill in the key words):
(1) Requirements:
The group leader is responsible for organizing and coordinating, one person in the group is responsible for filling in, one person is responsible for reporting, and other students can supplement.
The teacher asked for guidance during the visit.
⑶ Encourage and praise individuals and groups who can learn.
4, the whole class communication:
Please report to one group first, and the other groups will supplement. In the process of reporting, guide students to understand the key contents and expressions of the text in various reading forms, and guide students to read aloud.
(1) The characteristics of the first dinosaur-the method explained by the author-read some texts by name.
⑵ The characteristics of different forms of extended families ── the method explained by the author ── boys and girls read this part of the text in contrast.
⑶ The characteristics of predatory dinosaurs-the method explained by the author-have been reading this part of the text.
(4) Teacher evaluation summary:
Only by uniting and cooperating can we complete the learning task better.
5, intuitive feeling:
Teacher: The author introduced dinosaurs clearly and in detail in accurate and vivid language, which narrowed the distance between us. Now let's take a closer look at all kinds of dinosaurs!
The screen projection of Normal University shows the pictures of different kinds of dinosaurs in the order introduced by the author, and further introduces the main points.
6. Students retell:
Teacher: What was the evolution of dinosaurs flying into the blue sky? Let's start with rich and reasonable phenomena according to the text, and then say it in an orderly way in our own words.
Say its name.
7. Expression characteristics of experience:
(1) The teacher asked:
Students, have dinosaurs evolved into birds? What kind of dinosaurs evolved into birds? Is this evolutionary process achieved overnight?
Say its name.
Students read the blackboard before class:
During the Mesozoic era, a branch of dinosaurs finally became a soaring bird after a long evolution.
(2) Teacher: From the words with dots in this sentence, students can realize what characteristics the author has in language expression. What other words in the text make you aware of this feature?
Answer by roll call.
Third, summarize the full text and stimulate the spirit of exploration.
Teacher: Hundreds of millions of years ago, a feathered dinosaur broke away from its own kind and flew into the blue sky, becoming today's bird family. Scientists hope to reproduce this historical process. Do you think it's possible? Tell me what you think.
Answer by roll call.
The teacher concluded: Students have high hopes for the future. You are right. With the discovery of more and more dinosaur fossils, scientists' research has been helped. They have been exploring constantly, and now they have been able to visually reproduce the picture of dinosaur life, the evolution process and the reasons for extinction through scientific and technological means. Let's walk into the dinosaur world together and feel the charm of science and technology.
Play the DVD "Walking with the Dragon" clip.
blackboard-writing design
3 1, dinosaurs flying in the blue sky
During the Mesozoic era, a branch of dinosaurs finally became a bird soaring in the air after a long evolution.
Excellent Teaching Design "Dinosaurs Flying to the Blue Sky" Part III Design Concept
The curriculum standard puts forward that "students are the masters of Chinese learning" and actively advocates independent, cooperative and inquiry learning methods. When teaching this lesson, design cooperative learning forms around how dinosaurs flew into the blue sky, guide students to think while reading, learn to learn, and stimulate students' interest in science and exploration.
Teaching objectives
1. Know 7 new words and write 13 new words. Correctly read and write the words "dinosaur, fierce, pigeon, colorful, soaring in the air, ecstatic, depicting, various shapes, light and agile".
2. Read the text correctly, fluently and emotionally, and recite the parts of interest.
3. Retell the evolution process of dinosaurs flying into the blue sky in an orderly way, and stimulate a strong interest in loving science and exploring knowledge.
Teaching focus:
Guide students to understand the evolution of dinosaurs flying into the blue sky.
Teaching preparation:
New word cards and cooperative learning forms.
teaching process
First of all, the blackboard reveals the introduction of themes and problems.
1. What do you know about dinosaurs? For us, dinosaurs are full of mystery. This year, let's learn the text "Dinosaurs Flying in the Blue Sky" together.
2. Students read the questions together. Leading questions.
What do you want to know when you see this topic?
(Health: How did dinosaurs fly into the blue sky? How did dinosaurs grow feathers? )
[Design intention: Start with the topic, use questions to stimulate interest, guide students to have curiosity and thirst for knowledge, and stimulate students' initiative in reading]
Second, the preliminary reading of the text, the overall perception
1. Students read the text softly and freely, with clear requirements: underline the vivid words in the text while reading and mark the places they understand.
2. Check the mastery of new words. Read by roll call and read by the whole class. Prompt to pronounce "should".
3. What do you know after reading the text?
4. Guide students to ask questions about words and sentences in the text.
What do you mean by "feeding on animals"? Teacher: refers to eating animals with blood in trade, describing the cruelty of dinosaurs); (Health: How did dinosaurs fly into the blue sky? )
Read the text quickly and silently to see which natural paragraph of the text tells us the answer (paragraph 4)
[Design Intention: In reading teaching, we must read more and talk less, leave more time for students to study, and fully stimulate students' initiative and enterprising spirit. Take learning as the guide, take learning as the teaching, from reading the text softly to reading the text silently, guide students to practice silent reading, and form a good habit of "not reading without moving pen and ink"]
Third, go straight to the key paragraphs and explore the evolution process.
1. Teachers read the third paragraph, students read the fourth paragraph, and pay attention to pronunciation.
2. Read the natural passage of Di4 silently and think while reading: How did dinosaurs fly to the blue sky? What a long process has it gone through?
On the basis of students' self-learning ability, four people cooperate to fill in the form (cooperative learning form filled out by students)
Read paragraph 4 carefully and cooperate to complete the following table:
time
Reproduction situation
Their characteristics (in the book
Underline the relevant statements.
3. Report learning results
What did the earliest dinosaurs look like? A student reads a sentence: it is about the size of a dog, and supports itself with two hind legs like an ostrich.
B lead the students to give a general answer (camera blackboard: 230 million years ago, the first dinosaur was as big as a dog and as big as an ostrich)
It was very far away from us about 230 million years ago. How do scientists know this time? (Guide students to realize that "about" is used accurately in sentences)
D Read the sentence again and think about how it is different from the dinosaur image in your mind.
(2) Understand the reproduction of dinosaurs
So, how long did the transition take, and how did dinosaurs reproduce?
Students find out the relevant sentences and read them.
Boys and girls spend more time reading. Guide the students to feel that this sentence describes the different forms of dinosaur family from the aspects of habit, shape and temperament.
Watch the illustrations and train the students to practice speaking with "some" ... some ... contrast "to further imagine the huge dinosaur family.
D, teachers and students recite * * *, accumulate language, and encourage students to read more and recite more.
(Camera blackboard: after tens of millions of years, some families with different forms ...)
(3) Understand how dinosaurs flew into the blue sky step by step?
A. Read the sentences and find out what kind of dinosaurs flew into the blue sky. (carnivorous dinosaur)
B, guide students to further understand the accuracy of words. "Some, gradually" and so on.
C, why these dinosaurs can fly, scientists have provided several conjectures. Guide the students to talk about it in general. (Camera blackboard: Learn to fly by moving to a tree to survive and run)
4. Retell the evolutionary process.
Suppose you stand in front of this dinosaur fossil flying into the blue sky. As a small commentator, how should you introduce this evolution to visitors?
Repeat by name, teachers and students * * * repeat according to the script.
5. Read the last sentence. "In any case, there is no doubt that the flightless dinosaurs will eventually become favored birds. They flew into the blue sky and opened up a new life world.
Guide students to understand the meaning of "no doubt" Read a positive tone.
[Design intent: To enable students to read the text mainly through independent and emotional reading, with sufficient reading time, clear reading levels, clear reading requirements and various forms, so that students can experience the reading process, enter the text, clarify the narrative order of the text, understand the evolution process of dinosaurs to the blue sky, and guide students to accumulate and internalize the language by instructing students to recite the parts of interest, expanding oral training, repeating the evolution process and other forms. ]
Fourth, summarize the full text and expand reading.
1. Is there anything else you want to know about dinosaurs? (Health: How did dinosaurs grow feathers? How did dinosaurs die out? )
2. Summary: There are still many unsolved mysteries about dinosaurs, and there are still many mysteries waiting for students to explore. Interested students can look up information online or borrow relevant books from the library. Let's have another dinosaur knowledge meeting after class!
[Design intention: to stimulate students' interest in exploring science, get a deeper understanding of dinosaurs, move from in-class to out-of-class, and build an open Chinese classroom]
Wonderful teaching clips
Training and Illustration —— On "Different Forms" Teaching in Dinosaurs Flying to the Blue Sky
Teacher: So, how long did it take dinosaurs to thrive?
Health: (Reading sentences) Tens of millions of years later, the descendants of dinosaurs have multiplied into a huge family with different forms.
Teacher: What is this huge dinosaur family like?
Health: (Reading sentences) Some dinosaurs walked on two legs like their ancestors, while others walked on four legs. Some dinosaurs were tens of meters long and weighed dozens of tons, while others were small and weighed less than a few kilograms. Some dinosaurs ate meat fiercely, while others were docile and lovely, feeding on plants.
Teacher: What did you read from this sentence?
Health: after reading this sentence, I feel that the dinosaur family is huge, some are very big and some are very small.
Teacher: In what way is this explained?
Health: Explain from the shape of dinosaurs.
Teacher: Do you know from what aspects the author explained the huge dinosaur family?
Health: Part of it comes from the living habits of dinosaurs. The article says, "Some dinosaurs ran on two feet, and some dinosaurs walked on four feet".
Health: From the words "fierce and abnormal" and "docile and lovely", I know that the author said it from the temperament of dinosaurs.
Teacher: Look at the illustrations carefully. Let's see how this huge dinosaur family has different shapes.
Health: Some dinosaurs look like mice.
Health: Some dinosaurs are standing under trees, while others are flying in the sky.
Health: Although some dinosaurs are huge, I can feel their meekness and cuteness from their eyes.
Health: Some dinosaurs stood on the trees, as beautiful as cranes.
Health: There are swimming dinosaurs in the water.
……
Teacher: The students watched carefully. Let's read the sentence again and imagine the picture in our mind as we read it.
(Students read the sentences together)
Teacher: I really want to recite such an interesting part. Would you like to recite with me?
(Teachers and students act together and recite emotionally)
Teacher: The students recited it well. In fact, as long as you read it several times, you can recite good sentences.