First, the significance and role of classroom lead-in in classroom teaching
At present, most classroom introductions are directed by teachers to guide students into the teaching content with a few simple sentences. In fact, this kind of "classroom lead-in" has basically lost its effective function, and it is impossible to collect middle school students' attention and stimulate their curiosity in class. Therefore, classroom lead-in has irreplaceable positive significance in the whole classroom teaching.
1. Stimulate students' interest and guide them into a good learning state.
Reasonable lead-in can make students excited about learning new knowledge, make students enter a state of preparation for learning new knowledge, actively participate in classroom learning, and thus participate in new learning situations with interest. "Interest is the best teacher" will lead students into the temple of knowledge and reap the joy of harvest. Educator Stuart said: "The art of successful education lies in making students interested in what you teach." . Through lead-in, teachers transform teaching objectives into students' learning objectives. When students know the learning goals, they can make clear the learning direction, consciously regulate their behavior with the goals, and actively approach the goals. At the same time, we should also stimulate students' learning motivation and make them have a strong desire to learn.
2. Create an emotional atmosphere for learning and promote emotional communication between teachers and students.
A good tutorial is the key to connecting teachers and students. At the beginning of the class, if the teacher's eyes, actions and words win the students' goodwill at once, you will get a pass to the students' hearts, which opens the way for information exchange and emotional feedback between teaching, paving the way and making the teacher's lecture based on the students' expectation and respect for you. Simple and friendly guidance will build a bridge of friendship between teachers and students, and the feelings of teachers and students will be subtly communicated and sublimated in the process of guidance.
3. Attract students' attention
Attention refers to the direction and concentration of people's psychological activities on certain objects, which is the premise of any learning activities. When introducing, teachers should first arouse and adjust students' attention, and mobilize students' cognitive attention and emotional attention. Creative lead-in has sound and fascinating effect, which enables students to concentrate on the study of new courses at the beginning of class and make psychological preparations for completing new learning tasks. When importing, one of the most important tasks of teachers is to make students enter an "angry" state. Once students enter this state, they can have a strong learning motivation and actively and consciously devote themselves to learning.
4. Promote the connection between old and new knowledge
Lead-in is a "bridge" and "link" between classes, which has the function of connecting the preceding with the following. It is not only a natural extension of the previous teaching, but also the beginning of this class. Ingenious lead-in can establish a substantive connection between old and new knowledge on the basis of reviewing and consolidating old knowledge related to new knowledge, and lay a foundation for further learning new knowledge.
Second, the use of classroom-based basic teacher strategies
The ancients paid attention to "starting a sentence like firecrackers, suddenly ringing easily", so did classroom teaching of information technology. Designing the beginning of a class and making the prologue will help students to have a good learning motivation, greatly arouse their learning enthusiasm, make the classroom atmosphere relaxed and lively, make the classroom activities go smoothly and improve the classroom efficiency. Therefore, we need to use a variety of new lesson introduction methods to stimulate students' interest in learning, let students actively participate in the teaching process, and make the whole classroom have a good start.
1. Implementation strategy of news hotspot introduction method
Recently, news at home and abroad is a topic of concern to students, who are eager to know its content and the development of the situation. Using students' psychology of paying attention to hot news, that is, using students' strong curiosity, skillfully using news to introduce new lessons, and using the sensational effect of news to render the classroom teaching atmosphere, it is easy to stimulate students' enthusiasm for active learning.
Example: Excel Data Sorting-Class Import
Teacher: Students, in the medal list of the Beijing Olympic Games, although the number of gold medals of the US team is not as much as that of the China team, the total number of medals still exceeds that of the China team, so we are controversial in ranking. In statistics, what factors will affect the ranking order?
Student: Look at the number of gold medals first, then consider the silver medal, bronze medal and total medal in the same situation.
Teacher: When our school holds a sports meeting, how can we compare the rankings of the classes?
Student: Score. ...
As the Beijing Olympic Games is a news topic that students are familiar with and concerned about, it is easy for them to enter the learning state and explore new knowledge points under the guidance of teachers. Sports meeting is a hot issue that students need to know urgently, which can stimulate students' thirst for knowledge and thus form the motivation of learning.
2. Set the implementation strategy of suspense import method.
Suspense can make people feel anxious and has a strong temptation to students. In classroom teaching, teachers consciously set suspense, stimulate students' curiosity and thirst for knowledge, make their thinking in an activated state, produce a longing attitude, thus stimulate their exploration psychology, form a situation to explore problems, and generate a strong interest in learning new knowledge.
Example: "Automatic correction of words"-Introduction of knowledge points
Teacher: Students, do you think it is faster to speak or type?
Students naturally think that speaking is faster than playing.
Teacher: Let's have a competition. Let's start with "China people and China".
Before the competition, the teacher automatically corrected "China" to "China people * * * and China" with Word software. Soon, the teacher won the competition in the students' surprise.
In this way, students naturally begin to learn new knowledge in their desires.
Creating suspense can stimulate interest and start thinking. Suspense is beyond students' expectation, or contradictory, or confusing, which causes students' psychological desire and excitement. They just want to get to the bottom of things and know the truth as soon as possible. This kind of mentality is the state of "anger" and "sadness" needed in teaching, which pushes students to the position of active exploration at once, so that they can actively use their brains, start work, talk, think, explore and speak, thus entering a good learning state.
3. The implementation strategy of situational introduction method
In the teaching process, design and arrange one or more problem situations related to the teaching content, including the suspense of learning-related problems, so that students can enter the new classroom with the psychology of solving problems urgently, make the classroom atmosphere enter an active climax quickly, guide students to think independently, and thus stimulate their strong desire for knowledge about the teaching content and study in the best learning state.
Example: "Web Design"-Course Introduction
When learning how to make a web page, I put forward a task on the topic of Wuzhen Impression: about Wuzhen's long history, geographical location, scenic spots, local specialties, folk customs and famous works. Then the teacher provided some scenic spots web pages designed by students, and asked the students to collect relevant information in groups to complete a web page of Wuzhen impression.
After comparing the previous works and consulting relevant materials, students will devote themselves to the teaching process behind the teacher.
Creating situations must attract students' attention. If the situation is boring and lacks new ideas, the expected effect will not be achieved. By observing the web pages made by previous students, students are full of strong thirst for knowledge and sense of competition. In the situational design, students are divided into groups to collect materials, so that each student can participate in it, and finally realize the cooperative learning of the team, so as to effectively achieve the teaching objectives and achieve the ideal teaching effect.
4. The implementation strategy of example operation introduction method
Information technology has strong practical value. Classroom can demonstrate or operate some common or common concrete application examples in real life, so that students can feel the practical value of information technology and make them have the desire to learn quickly.