Under the new curriculum standards, how to improve students' learning efficiency is very important. If students are fully prepared before class and enter the classroom with questions in class, they will have a good psychology of wanting to learn, asking and practicing, and the key points and difficulties mentioned by teachers in class will be understood by students, thus stimulating students' independent exploration and desire for knowledge. Experiments show that students who preview regularly after class often get higher grades than those who don't preview, and

So how to preview before class? Let me introduce several methods to you first:

Read carefully before a class, word by word, draw the key points with a pen, and focus on understanding. If you encounter an unsolvable problem, mark it, and the teacher will take it as the focus of the lecture.

Think about the difficult problems in the preview before the second lesson. If it is a basic question, you can use your previous knowledge to see if you can make it clear. If it is a problem of understanding, you can write it down and listen carefully in class and solve it through positive thinking. This will help to improve your understanding of knowledge and form a good thinking habit of learning mathematics.

Third, when it comes to preview, you may feel vague. You can discuss with your parents or classmates and find the correct answer in the cooperation and discussion of classmates. This will increase students' interest in exploring new courses, help them understand the practical use of mathematical knowledge and have an accurate concept of knowledge.

It is also essential to write four times, one writing and one writing in the preparation before class. During the preparation period, you should make proper study notes, mainly including the initial experience and experience when reading a book, the understanding of the problems you have understood, and the recording and thinking of difficult problems.

5. Doing a preview application problem can help to understand the relationship between quantity and quantity, find out the known conditions and problems, and find the way to solve the problem. For some graphic problems, you can do it in the preview, cut and paste and spell it to increase your perceptual knowledge.

Six supplements and one supplement are often closely related to the old and new knowledge in mathematics class. If you find something unclear about what you have learned in the preview, you must understand it in the preview, consolidate your memory of old knowledge and lay a solid foundation for learning new knowledge.

Practice and practice are often typical of every class. When previewing, you should do all the examples to deepen your understanding. If you do something wrong, you should figure out where you did it wrong, why you did it wrong, and how to correct it. If you still can't find the root of the error, you can listen carefully and understand slowly.

In a word, preparation before class is essential to learn math courses well. Preparing well before class can not only clarify the key points and difficulties of the new class, find out the problems that you don't understand, let yourself learn in class, but also help to cultivate self-study ability and enhance innovation consciousness. Mathematics learning focuses on discovery, exploration, innovation and application. To learn mathematics well, we should develop good preview habits.

How to preview junior high school mathematics

The preview of mathematics is mainly reading math books, which requires us to think and practice more.

Mathematics preview can have "one stroke, two batches, three trials and four points"

Take the first section of the third chapter of grade eight as an example to illustrate this preview method.

"One stroke" is the key point of drawing a circle, such as the basic concept of fraction, and what you think should be "noticed" in example 1 should be circled.

The "second batch" is to annotate the experiences, opinions and contents that you can't understand temporarily in the preview in the blank space of the book to see if there is any score, and what is the essential difference between the score and the algebra you have learned before. At this time, we can criticize the problems in this book.

"Three tests" means trying to do some simple exercises to test the effect of your preview. Generally, you can only do in-class exercises in books. If you have any good information at hand, you can do it, buy some analysis with examples, and also cultivate your reading and self-study ability.

"Four points" is to list the main points of this section of knowledge that I have previewed, and to distinguish which knowledge is mastered through previewing and which is not understood by previewing, which needs further study in class.

How to preview math class

Preview is a good way to effectively improve learning efficiency.

First of all, preview can let us know what to learn in the next class, so as to study in a targeted way;

Second, preview can help us understand the key points and difficulties of the new lesson, help us pay attention to the main points when listening to the class, and make the study more targeted;

Thirdly, long-term preview is conducive to improving our reading ability and cultivating our self-study ability.

How to prepare for math class?

(1) What to study.

When previewing, you should first think about what you have learned before and what you will learn next. Make your own "prediction". This will help us to improve our understanding of knowledge and form a good thinking habit of learning mathematics.

(2) Read the textbook comprehensively. Knowing the main content of the new lesson, we should study hard on the basis of the above thinking. Read the textbook carefully from beginning to end to see if it is what you think; If they are the same, we should grasp the basic content of the textbook, think about what is the basis of these new knowledge, and do some necessary review to lay a good foundation for new learning. At the same time, when reading the textbook, I have a preliminary understanding of the basic structure of new knowledge.

(C) Grasp the key and difficult points of new knowledge

An important task of preview is to understand the key points and difficulties of new knowledge and prepare for better study in class. It doesn't matter if you don't know the key knowledge clearly or are not sure when you preview. For the problem of difficult preview, we should be prepared in two aspects: check and find out what the reason is. Is it a problem of the original knowledge base or a problem of understanding? If it is a basic problem, we should make it up consciously to see if it can be solved; If you understand the problem, you can write it down, listen carefully in class and actively think about solving it.

(4) Make appropriate study notes.

When preparing for the preview, you should make some study notes, mainly including the initial experience and experience when reading a book, the understanding of the problems you understand, the recording and thinking of difficult problems, etc. It doesn't take much to take notes, but it takes some time to practice and preview. Preview according to your own schedule. If you have more time, you can do it in more detail; If you have less time, you can preview it roughly, or look at the teaching materials roughly.

(5) Do the small exercises in front of the exercises and the basic exercises in the exercises. After listening to the lecture, check right and wrong and test the preview effect.

How to Cultivate Students' Interest in Preview

First, teaching methods, from easy to difficult, help first and then release, cultivate interest.

When students begin to enter senior grades, teachers should teach students some correct preview methods purposefully and systematically. Generally speaking, students can be guided to master the preview method of textbook marking and task implementation first. Textbook mark preview method is the most basic and simple method of mathematics preview. You can finish reading the textbook in just a few minutes, do some simple labeling, or study the textbook carefully and repeatedly for dozens of minutes, and write your own understanding, experience or original opinion in the blank space of the book on the basis of labeling. The task realization preview method is also more suitable for students to preview when they are beginners. Because students don't know where to start when they are beginners, teachers design preview tasks so that students can preview with tasks, which can be targeted and targeted. Teachers should first set high standards and be strict with themselves, carefully study relevant learning contents, and put forward preview tasks that are both valuable and attractive and can arouse students' strong interest in learning and exploration. When arranging preview tasks, we should pay attention to moderate difficulty, inducement and interest, clear preview requirements and strong operability. On the basis of students mastering the above two basic preview methods, teachers give students other preview methods and guide students to learn to take preview notes. Taking preview notes should also follow the principle of easy before difficult. At the beginning, students can take simple notes in the book, and write down their own understanding, experience or original opinions in the blank space of the book after reading the textbook. Secondly, students can take notes, that is, after previewing, they can extract key concepts and sentences. Deepen your memory and understanding of important knowledge in the notebook, and simply write down the doubts and puzzles in the preview process, and also record your gains in the preview. After learning to take simple preview notes, students should also be guided to learn to take reflective preview notes with high thinking content. No matter how to guide the preview method and how to take preview notes, teachers should take some class hours with students at the beginning to give detailed guidance on requirements, steps, methods and formats, and then let students preview and take notes independently, so that students can have laws to follow, so that they will not be afraid of difficulties and will be conducive to cultivating students' interest in previewing mathematics.

Second, discover progress, praise in time, experience success and stimulate interest.

Suhomlinski said: "I always make every effort to convince students of my strength. The happiness of success is a huge emotional force, which can promote children's desire to study hard. Please be careful not to let this inner power disappear under any circumstances. Without this power, any ingenious measures in education will be of no help. " Therefore, in the process of guiding students to preview, teachers should have a pair of eyes, be good at finding positive typical cases and praise them in time, so that students can experience the happiness of success and stimulate their interest in preview.

If there are arrangements, there must be inspections, and if there are inspections, there must be comments, otherwise the task will become a mere formality. In the process of students' preview, teachers must check the students' preview in time, and praise and affirm them in time if they find any progress or bright spots. Pay special attention to students with difficulties, and even guide them to preview, so that they can feel the teacher's love and be interested in mathematics and preview. Let students feel the fun of previewing and improve their interest in previewing mathematics. At first, let students write preview notes, which are basically extracted, and then summarize two sentences of their own learning gains. In view of this situation, I particularly emphasize that students should reflect on their preparation process, encourage students to find problems, ask questions, and write down their own confusion and unique opinions. So in the following days, when I was checking the preview effect, I paid special attention to which students raised questions and which students wrote down their own preview reflections. Once I find such a typical example, I will praise them and set an example. Therefore, children always pay attention to reflection in the process of preview, and improve the thinking content of preview while actively participating in various senses.

Third, introduce competition, organize exchanges, show results and raise interest.

The future society is full of competition. Cultivating students' sense of competition is the need of society and the basic quality of future talents. Teachers can introduce competitive consciousness into preview activities to make preview activities more vigorous, energetic and aura. Before learning a new lesson, teachers can hold a 5-minute "knowledge contest" according to the arranged preview outline, organize students to carry out preview experience exchange activities, or select excellent study notes to display in classes and schools, so that children can help each other, learn from each other, seek development and progress in competition, and cultivate self-confidence, self-esteem, self-reliance and self-improvement in competition. After several months of preview guidance, all the students in the class have learned the basic preview methods, and some students have done a good job in previewing notes. I selected excellent preview notes with the students and posted them in the class. I asked these students to introduce their preview experience and awarded them the title of "preview expert". At the same time, I give specific guidance or make better suggestions for the problems or deficiencies in each preview note, so that they can know their next direction of efforts while experiencing success. Such exchange and exhibition activities also set an example for other students, making them "have laws to follow" and "have examples to follow", further enhancing the interest of all students in previewing.

On the Strategies of Math Preview in Junior High School

While advocating students' autonomous learning, the mathematics curriculum standard points out that it is important for students to learn valuable mathematics and enter the mathematics classroom with questions and their own thoughts and thoughts. Under the background of the new curriculum standard, the process of students' preview is essentially a process of autonomous learning. How to treat preview under the background of new curriculum experiment? What kind of preparation does mathematics teaching need? Combined with my teaching practice, I would like to talk about some views:

First, the significance of effective preview of junior high school mathematics

Through the author's teaching practice, the pre-class preparation in mathematics teaching has the following positive significance for students to learn mathematics:

1. Through preview, students can review and master some old knowledge, get a preliminary understanding of the structure and network of knowledge, let students find the weak links of old knowledge themselves, make up this part in time before class, and also find the breakthrough point for teachers to make up for mistakes and prepare students for mastering new knowledge.

2. Through preview, students have a certain understanding of what they want to learn. Internalize some simple and easy-to-understand content that you are interested in, and take the initiative to mark what you don't understand, so as to make the lecture targeted, make psychological preparations for mastering new knowledge and improve classroom teaching efficiency.

3. Preview can provide a stage for students to cultivate their self-study ability. In preparation, students will try their best to collect existing knowledge and experience to understand and analyze new knowledge. This process is precisely to train students' ability to learn independently, ask questions and analyze problems. At the same time, it can improve students' practical ability, independent thinking ability and independent exploration ability, let students taste the happiness of success and promote students to learn more happily and actively.

It can be seen that preview before math class can cultivate students' learning ability and give full play to their subjectivity. Preview before class plays an important role in improving students' learning enthusiasm, developing good study habits and improving classroom teaching efficiency.

Second, the guidance of effective preview of junior high school mathematics

Effective preview can clarify the purpose and pertinence of students' learning new knowledge and improve the learning quality. The cultivation of good preview habits will save a lot of precious time for classroom teaching, so that teachers can acquire knowledge by themselves without explaining it to students. This not only improves the efficiency of classroom teaching, but also improves the relationship between teachers and students. More importantly, students' ability to acquire knowledge will be greatly improved. Therefore, teachers should guide the preview method step by step, and teach students what to do (tell students what to preview, that is, what to learn)-how to do it (teach students how to learn)-why to do it (develop students' thinking)-and what they don't understand (let students find some problems that can't be solved after preview), so as to guide students step by step and let every student master it.

Third, the methods of effective preview of junior high school mathematics

Preview is not only to look at the content to be talked about in class, but also to arrange preview tasks for different content. Preview is regarded as the preparation for classroom teaching, and teachers should pay attention to the guidance of methods. There are many ways to preview. According to the characteristics of junior high school mathematics textbooks and the age, psychological characteristics and cognitive rules of junior high school students, the author thinks that the following preview methods can be adopted:

1. Task implementation rehearsal method. Teachers assign preview tasks, and students preview with clear preview tasks. Because students don't know where to start when they start previewing, the teacher designs preview tasks, so that students can preview with tasks, which can be targeted and targeted. Teachers should first set high standards and be strict with themselves, carefully study relevant learning contents, and put forward preview tasks that are both valuable and attractive and can arouse students' strong interest in learning and exploration. When teachers assign tasks, they can take the form of tables or questions for students to preview. When arranging preview tasks, we should pay attention to moderate difficulty, inducement and interest, clear preview requirements and strong operability.

2. Pay attention to the preview method. Pre-class preparation allows students to take simple notes in the book and write down their own understanding, experience or original opinions in the blank space of the book; Secondly, students can take notes, extract key concepts and key sentences from notebooks, so as to deepen their memory and understanding of important knowledge, and simply write down doubts and puzzles in the preview process and ask questions in class. This is the most commonly used preview method for mathematics courses.

3. Review old knowledge and learn new preview methods. This is a preview of the connection between old and new knowledge. In the process of preview, on the one hand, we get to know the new knowledge, summarize the key points of the new knowledge and find out the difficulties, on the other hand, we review, consolidate and cram the old knowledge associated with the new knowledge. When it is required to preview new content, it should be connected with the old knowledge that has been learned, so as to "review the old knowledge and learn the new", contact the old knowledge, learn the new knowledge, and make the knowledge systematic.

4. Try to practice preview. For the new calculation teaching practice class, try to practice first when previewing, and then return to previewing examples when encountering difficulties, and then try to practice. By trying to practice, students' preview effect can be tested, which is an indispensable process of math preview. Mathematics is different from other disciplines, and it needs mathematical knowledge to solve problems. After students initially understand and master new mathematics knowledge through their own efforts, they should be asked to test the effect of their preview by doing exercises or solving simple problems.

5. Hands-on preview method. For highly operational knowledge such as formula derivation, students are required to practice by themselves in the preview process, and experience and feel new knowledge through activities such as cutting, spelling, folding, moving, swinging, drawing, measuring, observing and comparing. Because there is hands-on content in the class, it is natural to be familiar with the teaching materials, understand the tools and materials needed in the operation process, and make preparations before class. Only when students have experienced the process of forming mathematical knowledge can they know why.

In short, the forms of preview should be diversified, students' ability points should be identified, and students' interest points should be aimed at, so that students can "move" in preview.