Dinosaur teaching plans in various places

Teaching material analysis, one of the teaching plans of dinosaurs everywhere.

Dinosaurs Everywhere is a self-reading text in Unit 4, Book 2, Grade 7. Chinese curriculum standards require students to: When reading scientific and technological works, pay attention to understanding the scientific spirit and scientific thinking method embodied in the works. ?

Is this an article proving the discovery of Antarctic dinosaur fossils? Plate structure? The outstanding characteristics of theory-based popular science papers are that they pay attention to argumentation, comprehensively apply scientific knowledge in different fields, and have novel viewpoints. If students master the content of the text, they can be stimulated to explore science and innovative consciousness. Through repeated self-reading, students can appreciate the language features of this short passage, which are concise, logical and humorous.

Teaching objectives

1. knowledge and ability goal: accumulate words and master them? Ruins, folds, disasters, traceability? Pronunciation of words such as; Do you understand? Disaster, density, traceability and perfection? The meaning of words such as, and learn to use; Do you understand? Plate structure? 、? Pan-continent? 、? Drift theory? Scientific concepts such as.

2. Process and Method Objective: Grasp the object of interpretation of the article, understand the characteristics of the scientific and technological explanation text and clearly and hierarchically explain the logical order of things.

3. Emotional Attitude and Values Goal: Understanding? Different scientific fields are closely linked. Discoveries in one scientific field are bound to have an impact on other fields? Scientific point of view. Enhance students' scientific awareness and cultivate students' scientific thinking ability to see problems from multiple angles.

Emphasis and difficulty in teaching

1, grasp the content of the essay, clearly explain the object, and clarify the writing ideas.

2. understanding:? Different scientific fields are closely linked. Discoveries in one scientific field are bound to have an impact on other fields? Scientific point of view.

teaching method

Students mainly read independently, and teachers design and think problems to guide students to read independently. Solve reading problems through students' independent thinking and group discussion. Use? Ask questions? Analyze the problem? Solve the problem? It is a good learning method to read and analyze the writing ideas of articles from a new angle.

Preparation before class

1, students prepare for the exam: preview the text and solve the word barrier with reference books.

2. Teacher preparation: teaching pictures and multimedia.

Class arrangement

1 class hour.

teaching process

First of all, create situations and introduce passion.

(1) Introduction: While displaying the continental drift map with multimedia, introduce? Continental drift hypothesis? Story: One day in 19 12, German meteorologist Wei Gena was ill in bed. When he turned his eyes to the map of the world on the wall, which he had seen thousands of times, he suddenly had a novel idea: why is the shape of a continent protruding from the mouth of the Amazon River in South America so similar to the sunken part of Cameroon's coast in Africa? Why does the concave zone from the east coast of North America to Trinidad and Tobago coincide with the convex continent from the west coast of Europe to the west coast of Africa? Could these continents have been connected before they were separated?

Wei Gena was so excited by this brilliant idea that he didn't sleep well for several days. He made a comparative study of all the continents on the map and found that their coastlines were very consistent. Later, after many studies and verifications, he boldly put forward a famous theory that caused a sensation in the world scientific community? Continental drift hypothesis.

So what? Dinosaurs are everywhere? What does it have to do with the continental drift hypothesis?

(2) Author profile (multimedia display)

(C) students' reading teaching objectives

(4) Check the preview.

(Multimedia Presentation) Add some words and explain:

Human remains (): bones left behind.

Toad () (): an amphibian with many papules on its surface and poisonous glands inside, commonly known as toad.

Fold (): Rock strata are bent due to crustal movement.

Tracing back (): Go upstream to the birthplace of the river. Metaphor explores the origin of things.

Seamless: According to myths and legends, fairy clothes worn by fairies are sewn without needle and thread, and there are no seams. Metaphor things have no flaws.

Second, the preliminary reading of the text, the overall perception

Read the text by yourself and discuss the following questions: (Multimedia presentation discussion 1 and discussion 2)

Discussion 1: The topic of the text is "Dinosaurs are everywhere", so is it about dinosaurs? Give three options: dinosaurs, continental drift theory, dinosaurs are everywhere.

Clear: continental drift theory.

Discussion 2: What two topics are involved in the text description? What is the main explanation method? What can we learn from it?

Hint: Biology (extinction of dinosaurs)? Geology (plate tectonic theory), as the first paragraph of the text says:? Discoveries in one scientific field will certainly have an impact on other fields. ? The author mainly uses examples to illustrate his point of view, and his writing is rigorous. The accuracy and organization of this paper have been seen.

Third, read the text intensively, study and appreciate it.

Please read the text quickly and discuss:

What is the main content of this essay?

(2) In what order?

(3) How did the author come to the conclusion?

Clear:

(1) What did the discovery of Antarctic dinosaur fossils prove? Plate structure? Theory.

(2) The author adopts logical order here, focusing on explaining things and dissecting abstract scientific knowledge layer by layer, which is rigorous, simple and easy to understand.

(3) The author first found the question: Have dinosaur fossils been found in Antarctica? Dinosaurs did not adapt to the Antarctic climate? How did they cross the ocean to another continent? Then make hypothetical reasoning: is it continental drift rather than dinosaurs themselves? Put forward the continental plate tectonic theory? Inference? Pan-continent? When it was formed, all the land was in a tropical and temperate environment, suitable for dinosaurs? Further inference? Pan-continent? And split into four parts? So every continent took its own dinosaurs. Finally draw a conclusion:? Dinosaurs are everywhere? Is it support? Plate tectonic theory? New and powerful evidence.

Fourth, question and ask questions, and cooperate to explore.

1. Asimov is famous for his ability to master languages and concepts. Read the text quickly, try to combine the context and talk about the function of the following supplementary explanatory words put in brackets by the author in writing.

( 1)? Frogs and toads are famous modern amphibians. ?

Taking frogs and toads as examples, the language of popular science works is easy to understand.

(2)? If you look at a map, suppose Africa and South America are put together, you will find how seamlessly they are put together. ?

It is more convincing to prove the separation of South America and Africa by looking at the map, which supplements one of the most obvious evidences of continental drift theory.

2. Questions are used in many places in the text, which not only introduces the central content step by step, but also makes readers feel very cordial, such as face-to-face communication. Please find out and analyze its function.

( 1)? How did dinosaurs survive in Antarctica? This raises the question of how dinosaurs reached another continent.

(2)? Dinosaurs can't live on every continent, so how did they cross the ocean to another continent? This led to the theory of plate tectonics.

It is fascinating to use all kinds of explanations.

(1) Give an example to illustrate concrete and easy to understand.

In order to explain that dinosaur fossils are not only found in the Antarctic continent, list? Dinosaur fossils have also been found on other continents of the earth? It shows that dinosaurs are indeed all over the world; List? Antarctica also has its own dinosaurs, amphibians and other animals and plants that flourished in the dinosaur era? There are not only dinosaur fossils in Antarctica, but also other dinosaur fossils.

(2) make a contrast, clear and specific, so that readers can see at a glance.

Compare the fate of Antarctic dinosaurs with that of other continental dinosaurs. ? The fate of these creatures is much more tragic than that of other similar creatures, because the plate has brought them to the polar regions in the south. ?

(3) Metaphor makes language vivid and clear.

Like what? Antarctica, located in the center of the Antarctic, is the world's largest refrigerator? In a word, it vividly illustrates the cold degree of Antarctica and its important position on the earth. Another example is:? There are many continents on the back of the plate. When the plates move in one direction or another, the continent moves with them. ? Very vivid.

(4) The figures are accurate, specific and convincing, giving people the impression that there is sufficient scientific basis.

? In the history of the earth's development of more than 4 billion years, Pangaea has been formed and split many times, and the last complete Pangaea was formed about 225 million years ago. After millions of years of existence, this pan-continent began to show signs of rupture? ; About 200 million years ago, Pangu was divided into four parts.

Verb (abbreviation of verb) expansion and extension

Discussion 1: Take this article as an example to talk about what creative thinking scientists have played in scientific research.

Hint: Lenovo, imagination. From Antarctic dinosaur fossils to dinosaur migration, from dinosaur migration in biology to plate drift in geology, the research on the problem has been deepened step by step. Scientific assumptions and reasoning. After discovering the problem, make bold assumptions according to the existing theory (the answer to this question is: the drift of the continent rather than the migration of the dinosaurs themselves), and then make scientific reasoning (? Plate will connect all continents? ,? What's your name? Pan-continent? ,? When the plates continue to move, the continents separate again? ), and then confirm the hypothesis.

Think from multiple angles. For the same question? Why do dinosaur fossils appear in Antarctica? Thinking from biology and geology, combined with the rich professional knowledge of various disciplines and comprehensive thinking in a broad field of vision, scientific research has reached a new realm.

Discussion 2: What can we learn from the way scientists study problems?

Tip: This is an open question, which can be discussed in connection with your study and life.

Sixth, the class summary

1, students talk about harvest

2. Teacher's conclusion: Scientists can make associations from discoveries in a scientific field, and make new discoveries after suspicion, speculation, research and demonstration. Students should be inspired by it, be good at thinking from multiple angles and cultivate their innovative ability.

Homework: Collect relevant information, or watch sci-fi movies to learn about the world of dinosaur disease.

Eight, blackboard design

Dinosaurs are everywhere.

Asimov

Find the problem

Find out the answer logic

come to a conclusion

Reflection after class

"Dinosaurs Everywhere" Teaching Plan II ■ Wonderful Introduction

You have seen the movie Jurassic Park, and you will be shocked by its strange imagination and vivid pictures.

Shake it. Do you know why the world's largest animal dinosaur died out 65 million years ago?

What secrets can dinosaur fossils tell us? Look at the famous American popular science writers and science fiction writers.

How did Simov solve the mystery for us? (Title and author of blackboard writing)

■ Holistic perception

Students read and check the preview.

Human remains (hai2): bones left behind.

Toad (chan2chu2): An amphibian with many papules on its surface and poisonous glands inside, commonly known as toad.

Zhe3zhou4: Bending caused by crustal movement squeezing rock stratum.

Upstream (su4): Go upstream to the river's birthplace. Metaphor explores the origin of things.

Seamless: According to myths and legends, fairy clothes worn by fairies are sewn without needle and thread, and there are no seams. Metaphorically, there is nothing.

Discussion: The topic of the text is "Dinosaurs Everywhere", so is it about dinosaurs?

Clear: The author said that dinosaurs were extinct and dinosaur fossils were everywhere, in order to prove another scientific theory?

The correctness of plate tectonic theory.

Learning and exploring

Please read the text quickly. (group discussion)

This question is not correct.

What is the main content of this essay? In what order? How did the author come to the conclusion?

What two topics are involved in the interpretation of this text? What is the main explanation method?

Asimov is famous for his ability to master language and concepts. Can you find a plain and vivid sentence?

Clear:

Discovery problem: dinosaurs found in Antarctica? Dinosaurs did not adapt to the Antarctic climate? How do they cross the ocean to get to another place?

Where did you go from the mainland?

Find out the answer: Is the continent drifting, not the dinosaurs themselves? Put forward the continental plate tectonic theory?

? Pan-continent, when it was formed, all the land seemed to be in tropical and temperate environments, so dinosaurs might be there? Pan-continent? Living comfortably in different areas? What happened afterwards? Pan-continent? Divided into four parts, so each continent has its own dinosaur.

Draw a conclusion:? Dinosaurs are everywhere? Is it support? Plate tectonic theory? New and powerful evidence. The author uses logical order here, focusing on explaining things and dissecting abstract scientific knowledge layer by layer, which is rigorous, simple and easy to understand.

Biology (extinction of dinosaurs)? (plate tectonics) geology, as the first paragraph of the text says: in one place

Discoveries in the field of science will certainly have an impact on other fields. ? The author mainly uses the method of illustration to say

Understand your own point of view and write rigorously. The accuracy and organization of this paper have been seen.

A. The author puts supplementary explanatory text in brackets in his writing:

◆? Frogs and toads are famous modern amphibians? Taking frogs and toads as examples, the language of popular science works is easy to understand.

◆? If you look at a map, suppose Africa and South America are put together, you will find how seamlessly they are put together. ? Looking at the map proves that the separation between South America and Africa is more convincing, which supplements one of the most obvious evidences of the continental drift theory.

B. rhetorical questions are used in many places in the text. This not only introduces the central content step by step, but also makes readers feel very cordial.

Such as face-to-face communication.

◆? How did dinosaurs survive in Antarctica? This leads to the question of how dinosaurs reached another continent.

◆? Dinosaurs can't live on every continent, so how did they cross the ocean to another continent?

The theory of plate tectonics is introduced.

C. The analogy method is adopted to make the language vivid and clear.

Supplement. ? Antarctica, located in the center of the Antarctic, is the world's largest refrigerator? In a word, it vividly illustrates the cold degree of Antarctica and its position on the earth.

Another example is:? There are many continents on the back of the plate. When the plates move in one direction or another, the continent moves with them. ? Very vivid.

■ Expansion and extension

Talk about the enlightenment after learning this article.

Clear: A discovery in one scientific field will definitely have an impact on other fields. (as long as it makes sense)

Let's talk about it with specific examples. Discoveries in one scientific field will certainly have an impact on other fields.