High school information technology "network information search" teaching plan 1: 1. Textbook analysis
1, the role and position of this section
In the information society, in the face of complicated information, it is one of the information literacy that young students must have in the new century to obtain useful information efficiently to support their study and work. An important feature of the information society is the digitalization and networking of information. Getting information from the Internet quickly and efficiently has increasingly become one of the necessary skills for people to study, work and play.
This section aims to cultivate and enhance students' ability to obtain network information, making it a survival skill that every student must master in the information society, laying a foundation for students to learn to organize and process information effectively, and being an inexhaustible motive force for students to continue their learning and development.
This section emphasizes that students can master the process and method of obtaining information through the network by experiencing and understanding the operation and application in network information activities, and provide services for their study, life and development.
In addition, this section also focuses on guiding students to form the consciousness of autonomous learning and cooperation with others, laying the foundation for diversified exchanges and cooperation in other chapters of compulsory modules and elective modules.
2. The main contents of this section are introduced.
This section sets two aspects:
Common methods of network information retrieval.
Strategies and skills of obtaining network information retrieval by using search engines.
3. Analysis of key and difficult points
★ Teaching focus:
Master directory search and full-text search of search engines. The emergence and application of search engines make it possible to obtain information efficiently in the network, and the clever use of search skills can greatly improve the efficiency of information acquisition.
★ Teaching difficulties:
Master the skills of keyword search
Second, the analysis of learning situation
Students already have the perceptual experience of searching information through the Internet. Teachers should combine students' original cognitive basis to promote it, so that students can form a rational understanding of multi-network information search, and constantly sum up and accumulate their own experience of searching information through the Internet in practice, so as to continuously improve their online information search level. However, the differences between students are considerable, and teachers should pay attention to creating an atmosphere of exchange and learning.
Third, teaching strategies
Let students participate in classroom teaching, and let students change from passive learning to active learning.
Task-driven, group cooperation, communication and exploration are the main activities, and the cooperation mode of complementary advantages is emphasized in the grouping process. At present, junior high school information technology courses are integrated into comprehensive practical activities, and students' information technology ability level is uneven. In order to complete the activities and tasks in this section, when organizing teaching activities, we should consciously implement the grouping method of combining strength with weakness to help each student improve the level of information technology in a relatively short period of time, so as to achieve balanced development. This operational skill will no longer be an obstacle to future study and progress.
On this basis, further guide students to learn common information search methods and use search engines, master the definition and classification of search engines, and make them experience and summarize the strategies and skills of using search engines to obtain network information retrieval in the competition.
Fourth, the teaching process
Q: What is the general method of obtaining information? (four stages)
Briefly introduce the emergence and development of search engines.
Learning: What is a search engine? What are the classifications?
1, the full-text search engine has become? Keyword query?
Principle: xxxx
Method: xxxx
Representative websites: Baidu, Google.
Example: looking for Shengze Middle School in Wujiang City.
2. Principles and methods of directory index search engine;
Representative websites: Sohu, Sina, Netease, Yahoo.
Example: looking for Shengze Middle School in Wujiang City.
Comparison and Trend of Two Search Engines
Trend: Now many search engines are developing in these two directions.
Exercise:
P20 1( 1)(2)2( 1)(2)(3)
Game 1: rules of the game
After the teacher finished reading the questions, the group members used different online information search methods to query the answers to the questions. If they found it first, they called out their own group to raise their hands, and the teacher agreed to report their own query results. If your answer is correct, give your team ten points. If the answer is wrong (including those who don't follow the rules), ten points will be deducted. Other teams will continue to answer quickly. The group with the highest score at the end of the whole game is the winning group.
Teachers choose topics in advance that can fully reflect the strategies and skills of using search engines.
Think about it: members of the group exchange their experience in searching information through the internet during the competition, think about how to use search engines to find the information they need accurately and quickly, and recommend the group representatives to make a concluding speech.
Teachers and students summed up the skills of using search engines:
1, the choice of keywords is the most important. (use logical symbols and or not)
Yes or no
And or not
+ | -
Take Google as an example:
1 no? +? , using only spaces.
2 use? -? Show? No? .
3 or is capitalized.
2. Add English double quotation marks in the method of forced search.
It is more effective to find famous aphorisms or proper nouns.
3. Use spaces among multiple keywords
4. Don't limit yourself to a search engine.
Exercise: P23
Exercise:
Content:
Please use the network information search strategies and skills learned in this lesson to understand the origin, legends, customs and poems of the Mid-Autumn Festival.
Mode:
Group activities: Send a paper to each group, and the members of the group cooperate to complete the questionnaire information inquiry, and recommend the group representatives to make a general introduction to the corresponding Mid-Autumn Festival topics to the whole class.
Design intent:
Give some questions that need to be searched to find the answer, and send them to students. Check the students' completion. A correct answer means mastery, and the length of time is only a matter of proficiency. Mainly to examine their mastery of search skills. Let each group report what they are looking for. Make the whole class have a more comprehensive understanding of Mid-Autumn Festival.
Summary and evaluation: xxxx
Teaching reflection:
Adopting this theme activity teaching has higher requirements for teachers. In order to organize a class well, teachers must carefully design the class, arrange activities more carefully and think carefully. The most important thing is to arouse students' great interest, which requires teachers to have very good guidance and help and guide students in the process. You should have the ability to improvise and control the classroom, and can mobilize the atmosphere. When discussing in each group, students should be mobilized to participate actively in time, and teachers should affirm and praise students' bright spots in time when patrolling, so as to promote the atmosphere of the whole classroom. The evaluation mechanism set in the classroom should be clear, and the goals to be achieved by the activities should be clear.
Attachment: Name of the first competition:
1, according to historical records, Mid-Autumn Festival? The word first appeared in the book _ _ _.
2. < Journey to the West >> Today's Flame Mountain is in:
3. Love organizations and environmental protection organizations in Peking University and Tsinghua issued an initiative to primary and secondary schools and universities across the country: set April as? China Campus Environment Day? . (Hint: Fill in 2 Arabic numerals)
4. In which state of the United States is Silicon Valley, the most important IT high-tech industrial base in the world?
The sprouted potato contains a toxin, which will lead to death due to respiratory paralysis if ingested too much. What kind of toxin is this?
6. The father of world science fiction is: French writer Jules? Jules Verne
7. Jin Yong's native place is Haining, Zhejiang.
8. The first stamp in the world appeared in Britain.
9.IBM is a well-deserved computer giant in the world, but its predecessor, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
10, he knows that the dew will be frost tonight, _ _ _ _ _ _.
Attachment: Exercise topic:
1. Unlike China people who eat moon cakes on Mid-Autumn Festival, Japanese people eat zongzi while enjoying the moon. What is this called? __________? .
2. What's the name of a seasonal food eaten in the Mid-Autumn Festival in Shandong _ _ _ _ _ _ (city name)? Mai Jian? .
There is also a legend about Mid-Autumn Festival: It is said that osmanthus trees in front of Guanghan Palace on the moon are flourishing, reaching more than 500 feet. There is a man who often cuts down, but every time he finishes cutting, the cut place closes immediately. For thousands of years, this laurel tree can never be cut down. It is said that the name of the person who cut down trees is _ _ _ _ _ _ _, and he was from Xihe in Han Dynasty. He once followed the immortal to heaven, but when he made a mistake, the immortal demoted him to the moon palace and did this futile work every day as punishment. Is there anything in Li Bai's poems? ____________,______________。 ? Record.
4、? The moon, at this time is at sea, over the end of the world. ? _ _ _ _ _ _ _ from _ _ _ _ _ _ _
I drink a pot of wine from the flowers alone. No one is with me. ____________,______________。 The moon doesn't know how to drink, but the shadow in front of it is behind. I have to mingle with them and enjoy the happiness of spring. The song I sing is bright and wandering, and I dance the shadow before wandering.
6. January in the water, January in the sky, January in the water and sky, _ _ _ _ _ _ _. Look down at the water, look up at the sky, look at the moon, _ _ _ _ _ _, one is in the water and the other is in the sky.
Teaching plan 2 of information technology "network information search" in senior high school: teaching analysis
Last class, we learned about search engines, and learned that the sources of information are rich and varied, and the methods of obtaining information are also diverse, and the use of computer networks to obtain information is becoming more and more extensive. How to better obtain information from the network? This is the content search skill of this lesson, which is the content of the second section of the second chapter of the standard experimental textbook "Fundamentals of Information Technology" for ordinary senior high schools. After learning the search engine, it was sorted out. Students have a certain foundation for this part of the content, strong hands-on ability, but also have a certain understanding and acceptance of theoretical knowledge, and are full of interest in the Internet as an information resource.
Teaching objectives
1, so that students can use search engines to obtain information effectively.
2. Cultivate students' innovative ability; Cultivate students' autonomous learning ability and cooperative learning ability; Cultivate students' information processing ability.
3. Improve students' interest in learning information technology courses.
Teaching focus:
Search skills of internet search engines.
Teaching difficulties:
Classification of search engines (this part of knowledge is abstract, so it is difficult to concretize and visualize it in teaching).
The application of search skills (the application of search skills needs to design effective search goals, and the design in teaching allows students to gradually digest and absorb the key contents of this lesson in the process of completing tasks.
summary
Internet is a rich treasure house of information resources. We can find the information we need by using search engines, which can be divided into full-text search engines according to their working methods. Keyword query? And directory index search engines, you need to master certain skills when using search engines, which can make the search more convenient. But it is also possible that you can't find the information you need, and the information resources on the Internet are limited, which requires us to constantly expand and improve.
Through simple induction and summary, students' understanding and memory can be deepened, which can help students establish a relatively complete knowledge structure. At the same time, putting forward requirements can mobilize students to further discover and explore.
Thinking practice
Looking for an introduction? Search skills? The website of. Improve your search level through practice.
Find learning materials about English, mathematics, physics and other subjects in senior high school.
Teaching reflection
In this class, I give full play to the main role of students and the leading role of teachers, pay attention to cultivating students' inquiry learning ability and autonomous learning ability, and improve students' information processing ability and interest in information technology courses through the completion of tasks.
Attachment: Name of the first competition:
1, according to historical records, Dragon Boat Festival? The word first appeared in the book _ _ _.
2. < Journey to the West >> Where is Guo Hua in China today: _ _ _ _
3. get to know it? Magic computer? Articles.