1. On Saturday, I came to the exhibition hall with great interest to watch the exhibition of agricultural scientific and technological achievements.

Grandpa Yuan Longping's contribution is the most noticeable. Aunt, the commentator, said that the improved hybrid rice varieties he cultivated greatly increased the rice yield. We have used 7% of the world's arable land to feed more than 22% of the world's population, and Grandpa Yuan has made great contributions.

I also saw a model shed. This kind of greenhouse can accurately control the temperature, humidity and light, and it can also make flowers bloom and fruits fragrance in cold winter.

The introduction of colored cotton aroused my curiosity. This kind of cotton has different colors, such as red, yellow, green, etc., and cotton mills can directly use it to spin colorful threads and weave colorful cloth.

the technology of soilless culture is also great. Scientists and technicians dissolve all kinds of nutrients in water, and plants can grow sturdily with such water without soil.

on my way home, I couldn't help thinking: with advanced science and technology, agriculture has changed a lot!

2. Teaching plan of Chinese "Agriculture has changed so much" in the second grade of primary school 1. Teaching objectives

1. I can read 14 new words such as "agriculture and technology" and write 8 new words such as "factory and production".

2. Know what changes have taken place in agriculture (what achievements agriculture has made in science and technology).

3. Be able to read the text correctly, fluently and emotionally.

4. Cultivate students' passion for science.

Second, teaching focuses on difficulties

Emphasis on difficulties: reading articles in literacy teaching and understanding the scientific knowledge around you.

3. Preparation of teaching AIDS

Teaching wall chart (or multimedia courseware) new word card

4. Currently preparing

collecting knowledge about agricultural science and technology.

V. Teaching process

First class

(I) Introduction of topics

1. With the development of science and technology, all walks of life in China have undergone earth-shaking changes, and agriculture has also undergone great changes.

2. Before class, the teacher asked everyone to collect relevant knowledge about agricultural changes. Who will introduce it now?

3. Students introduce the changes in agriculture.

Yes, agriculture has changed a lot, with advanced science and technology. Today, we will learn lesson 34.

4. Read the topic together.

second, read the text by yourself and recognize the new words.

1. Students read the text by themselves and sketch the new words.

2. Show the new words and read them by name.

3. How to remember these new words?

4. Show the new word cards, and the group will drive the train to read them.

third, learn the text to understand the changes in agriculture.

(1) Read the text by name in natural paragraphs.

Thinking: I went to the Agricultural Exhibition Hall and learned about the changes in agriculture.

(2) What changes do students report on agriculture?

(3) learn the second paragraph.

1. Show the flip chart (or put the courseware). Yuan Longping, the father of rice

2. What did Grandpa Yuan Longping do?

3. What else do you know about Grandpa Yuan Longping?

4. Instruct reading Section 2 (praise and pride).

(4) Self-study paragraphs 3-5.

requirements: read sections 3-5 of the text by yourself, and then tell the group what changes I have learned about agriculture in the exhibition hall.

1. Think and discuss

① Why are flowers still blooming and melons and fruits fragrant in the greenhouse in the cold winter? What do you mean by "flowers are in full bloom" and "fruits are fragrant"?

② What are the characteristics of "colored cotton" and what is its function?

(3) Why can plants thrive on water without using soil? What do you mean by "very strong"?

2. The group sends representatives to report the exchange learning results.

3. The teacher plays the courseware with the camera. Tell me what else you know about "greenhouse" and what you know about "colored cotton" and "soilless culture"?

4. Instruct reading 3-5 sections.

(5) learning the sixth paragraph

1. Why has agriculture changed so much?

2. Read paragraph 6 together.

3. What other changes have taken place in agriculture?

(6) Assign homework

1. Read the text aloud

2. Find out what changes have taken place in agriculture.

3. Reflections on the teaching of "Great Changes in Agriculture" in the second grade of primary school. "Great Changes in Agriculture" is a reading text. This paper mainly introduces the great changes in hybrid rice, greenhouse model, soilless culture and colored cotton in China in recent years. This paper aims to let students know the knowledge of agricultural science and technology, feel the changes in agriculture, and further enhance their love for science.

Although our school is a rural school, due to the transformation of rural agricultural industrialization, the living space of rural children is basically far away from rural areas and agriculture, and students' understanding of agricultural technology is negligible. Therefore, it is necessary to make students interested in agriculture and understand agriculture fundamentally through the study of this text. Determined to devote himself to agriculture in the future like grandpa Yuan Longping and other agricultural scientists. At the same time, cultivate students' ability to collect materials and accumulate languages; And through exchange learning, cultivate students' oral expression ability. In order to achieve the teaching objectives of this course, I set the following teaching objectives based on the students' learning situation:

(1) Knowledge objectives: to know 14 new words "agriculture, technology, Yuan, Long, Jie, Shao, Pei, Education, Production, Shed, Control, System, Mud and Development". Can write eight new words "factory, production, agency, agriculture, science, technology, spinning and weaving"

(2) Ability goal: read the text correctly and fluently, and understand the changes brought by science and technology to agriculture. Understand the characteristics of four new agricultural technologies. Pay attention to the accumulation of four words such as "high spirits".

(3) Emotional goal: to further enhance the emotion of loving science by knowing some agricultural knowledge.

before class, I used the network platform to collect a large number of information and pictures of agricultural changes, made a teaching courseware suitable for the students in this class, and arranged for students to know some agricultural knowledge after class. In the teaching process, give full play to students' initiative, let students choose their favorite parts to study, and then communicate.

In teaching, I constantly extend my knowledge and expand it in a timely manner, so that children can spread their imagination wings. Although it is varied and whimsical, with the development of science and technology, such imagination may become a reality! I have fully affirmed and highly appraised the children, fully respected the students' individual experience, cultivated their imagination and language skills, and further cultivated their love for science.

through the teaching of this course, I think it has aroused students' interest in agriculture to a great extent. Students really feel the power of science and technology. It is science and technology that has brought beneficial changes to agriculture. But I think the teaching of this class is still a little weak in language and writing training. In addition, if we can really take students to the greenhouse to visit and know the cultivation techniques of vegetables (watching mushrooms in greenhouse), students will gain more.