Compared with junior high school physics, senior high school physics has more contents, greater difficulty, higher ability requirements and greater flexibility. So many students are very uncomfortable after entering high school. After entering the first year of high school, there is no problem with the movement of forces and objects for the time being. I think high school physics is like this. After learning Newton's laws of motion, the problems began. The problems of curvilinear motion, law of universal gravitation, momentum and mechanical energy became more and more serious. If we don't change our learning attitude and methods in time, physics will get worse and worse. When it comes to physics, we will have a headache, hate physics more and more, and gradually become insulated from it. This makes it difficult for some students who learn physics well in junior high school to adapt quickly after high school. The following are some views and suggestions on how to learn physics well in senior high school. First, we should change our ideas. Physics in junior high school is good, but physics in senior high school is not necessarily good. Junior high school physics knowledge is relatively simple, with little content and easy to master. In addition, in the late third grade, through a lot of practice and repeated intensive training, proficiency has been improved, which can greatly improve physical performance. But high marks do not mean that you can learn physics well and learn physics. If you don't cultivate your interest in learning physics and don't have good learning methods, it is difficult to learn physics well in high school. Therefore, we must first change our concepts. If we learn physics well in junior high school, we may not learn well in senior high school. So lower the starting point and start from scratch. Second, we should cultivate a strong interest in learning physics. Interest is one of the driving forces of thinking, a powerful and lasting driving force for learning, and a potential driving force for learning physics well. There are many ways to cultivate interest. From the students' point of view, it should be noted that physics is closely related to daily life, production and modern science and technology. There are many physical phenomena around us and we use a lot of physical knowledge. For example, when speaking, the vibration of vocal cords forms sound waves in the air, and the sound waves reach the ears, causing the eardrum to vibrate and produce hearing; Atmospheric pressure is helpful when drinking boiled water, drinks and dipping a pen in ink. When walking, the static friction between the foot and the ground is helpful, and the walking process consists of continuous dumping action; Remove impurities from rice when washing rice and use buoyancy knowledge; A straight chopstick is inserted obliquely into the water, and it seems that the chopsticks are curved on the water surface; The formation of lightning and so on. Consciously connecting with physical knowledge in practice and applying physical knowledge to practice let us know that physics is so closely related to us that it is useful. Can greatly stimulate the interest in learning physics. From the teacher's point of view, we should introduce the concepts and laws of physics through vivid practical examples and intuitive experiments that students are familiar with, organize students to carry out experimental operations, and let students feel the close connection between physics and daily life; Combined with the content of the textbook, introduce the history and progress of physics and its wide application in modernization to students, let students see the use of physics, and make it clear that today's study is for tomorrow's application; According to the content of the textbook, students are often selectively introduced to some vivid physical allusions, anecdotes and mysterious stories of Chinese and foreign physicists exploring the physical world; According to the teaching needs and students' intellectual development level, some interesting and thoughtful questions are put forward. Teachers' efforts from these aspects can also make students have a passive interest in physics and stimulate their enthusiasm for learning physics. Third, in the classroom, improving listening efficiency is the key. During study, time in the classroom is very important. So the efficiency of class determines the basic situation of learning. We should pay attention to the following aspects to improve the efficiency of class attendance: 1, and preview before class can improve the pertinence of class attendance. The difficulty found in the preview is the focus of the lecture; We can make up for the old knowledge that we have not mastered well, learn new knowledge, reduce blindness and passivity in the process of listening to lectures, and help improve classroom efficiency. After preview, comparing and analyzing the knowledge you understand with the teacher's explanation can improve your thinking level, and preview can also cultivate your self-learning ability. 2, in the process of listening to lectures, we should concentrate, concentrate, and not be absent-minded. Concentration is to devote yourself to classroom learning, so that you can hear, see, feel, speak and touch. If you can achieve these "five goals", your energy will be highly concentrated, and all the important contents learned in class will leave a deep impression on your mind. Make sure you can concentrate on the class and don't be distracted. Be sure to pay attention to the ten-minute break before class, and don't do too intense exercise or debate, or read novels or do homework, so as not to be breathless, daydreaming, unable to calm down, or even start to sleep. Therefore, we should make material preparation and mental preparation before class. Pay special attention to the beginning and end of the teacher's lecture. At the beginning of a teacher's lecture, it is generally to summarize the main points of the last lesson and point out the content to be talked about in this lesson, which is a link to link old knowledge with new knowledge. Finally, he often summarizes the knowledge in a class, which is very general and is an outline for mastering the knowledge and methods in this section on the basis of understanding. 4. Take notes. Taking notes is not a record, but a concise record of the key points and difficulties in the above lectures, and recording the main points of the lectures and your own feelings or innovative ideas. In order to review digestion. 5. We should carefully examine the questions, understand the physical situation and process, pay attention to the ideas of analyzing problems and the methods of solving problems, and stick to it, we will certainly be able to draw inferences from others and improve the ability of knowledge transfer and problem solving. Fourth, do a good job in reviewing and summarizing. 1, review in time. On the second day after class, you must do a good job of reviewing that day. An effective way to review is not only to read books and notes over and over again, but also to take retrospective review: first, combine books and notes to recall what the teacher said in class, such as the ideas and methods of analyzing problems (you can also write them in a draft book while thinking), and try to think completely. Then open the book and notebook, compare and make up what you don't remember clearly, so as to consolidate the content of the class that day, check the effect of the class that day, and put forward necessary improvement measures for improving listening methods and improving listening effect. 2. Review these chapters. After learning a chapter, you should review it in stages, and the review method is the same as timely review. We should review by recalling, and then compare books and notes to make its content perfect, and then do a good job in the general part of the chapter. 3. Make a chapter summary. The chapter summary should include the following parts. Knowledge network in this chapter. Main contents, theorems, laws, formulas, basic ideas and methods of solving problems, conventional typical problems, physical models, etc. Self-experience: In this chapter, you should record the typical problems you did wrong, analyze their causes and correct answers, and record the most valuable ideas or examples in this chapter, as well as the unsolved problems, so as to make up for them in the future. 4. Do a comprehensive review. In order to prevent the previous knowledge from being forgotten, every once in a while, it is best not to exceed ten days, and review all the previous knowledge, which can be done by reading books, taking notes, doing problems, reflecting, etc. Fifth, correctly handle the exercises. Many students pin their hopes of improving their physics scores on a large number of problems and engage in sea tactics. This is inappropriate. "Don't judge heroes by how many questions they do." The important thing is not to do more questions, but to achieve high efficiency and goals. The purpose of doing the problem is to check whether the learned knowledge and methods are well mastered. If you don't master it correctly, or even have deviations, the result of doing so many questions is to consolidate your shortcomings. Therefore, we should do a certain amount of exercises on the basis of accurately mastering the basic knowledge and methods. As for the intermediate questions, we should pay attention to the benefits of doing the questions, that is, how much we have gained after doing the questions. This requires some "reflection" after doing the problem, thinking about the basic knowledge used in the problem, the main knowledge points, the physical laws used, whether there are other solutions, and whether the analytical methods and solutions of the problem have been used in other problem solving. If you connect them, you will get more experience and lessons. Of course, it is impossible to form skills without a certain amount of practice (homework assigned by the teacher), and it is also impossible. In addition, whether it is homework or exams, we should put accuracy first and methods first, instead of blindly pursuing speed, which is also an important aspect of learning physics well. 6. Pay attention to observation and experiment. Physical knowledge comes from practice, especially from observation and experiment. We should carefully observe physical phenomena and analyze the conditions and causes of physical phenomena. It is necessary for physics students to do experiments well, learn to use instruments and process data, and understand the basic methods of studying problems with experiments. We should consciously improve our observation ability and experimental ability through observation and experiment. In short, as long as we are open-minded, eager to learn, proactive, practical and serious, work hard to understand knowledge, think more, study more, stress scientific learning methods, connect with life and production practice, and pay attention to the application of knowledge, we will certainly learn physics well in senior high school.
========================================================================
On the Learning Methods of Mathematics in Senior High School
After entering high school, many students often can't adapt to mathematics learning, which in turn affects their enthusiasm for learning and even their grades plummet. There are many reasons for this. But it is mainly caused by students' ignorance of the characteristics of high school mathematics teaching content and their own learning methods. According to the characteristics of high school mathematics teaching content, this paper talks about learning methods of high school mathematics for students' reference.
First, changes in the characteristics of high school mathematics and junior high school mathematics
1, mathematical language is abrupt in abstraction.
There are significant differences in mathematics language between junior high school and senior high school. Junior high school mathematics is mainly expressed in vivid and popular language. Mathematics in senior one involves very abstract set language, logical operation language, function language, image language and so on.
2. Transition of thinking method to rational level.
Another reason why senior one students have obstacles in mathematics learning is that the thinking method of mathematics in senior high school is very different from that in junior high school. In junior high school, many teachers have established a unified thinking mode for students to solve various problems, such as how many steps to solve the fractional equation, what to look at first and then what to look at in factorization, and so on. Therefore, junior high school students are used to this mechanical and easy-to-operate stereotype, while senior high school mathematics has undergone great changes in the form of thinking, and the abstraction of mathematical language puts forward high requirements for thinking ability. This sudden change in ability requirements has made many freshmen feel uncomfortable, leading to a decline in their grades.
3. The total amount of knowledge content has increased dramatically.
Another obvious difference between high school mathematics and junior high school mathematics is the sharp increase in knowledge content. Compared with junior high school mathematics, the amount of knowledge and information received per unit time has increased a lot, and the class hours for assisting exercises and digestion have decreased accordingly.
4. Knowledge is very independent.
The systematicness of junior high school knowledge is more rigorous, which brings great convenience to our study. Because it is easy to remember and suitable for the extraction and use of knowledge. However, high school mathematics is different. It consists of several relatively independent pieces of knowledge (such as a set, propositions, inequalities, properties of functions, exponential and logarithmic functions, exponential and logarithmic equations, trigonometric ratios, trigonometric functions, series, etc.). ). Often, as soon as a knowledge point is learned, new knowledge appears immediately. Therefore, paying attention to their internal small systems and their connections has become the focus of learning.
Second, how to learn high school mathematics well
1, form a good habit of learning mathematics.
Establishing a good habit of learning mathematics will make you feel orderly and relaxed in your study. The good habits of high school mathematics should be: asking more questions, thinking hard, doing easily, summarizing again and paying attention to application. In the process of learning mathematics, students should translate the knowledge taught by teachers into their own unique language and keep it in their minds forever. Good habits of learning mathematics include self-study before class, paying attention to class, reviewing in time, working independently, solving problems, systematically summarizing and studying after class.
2, timely understand and master the commonly used mathematical ideas and methods.
To learn high school mathematics well, we need to master it from the height of mathematical thinking methods. Mathematics thoughts that should be mastered in middle school mathematics learning include: set and correspondence thoughts, classified discussion thoughts, combination of numbers and shapes, movement thoughts, transformation thoughts and transformation thoughts. With mathematical ideas, we should master specific methods, such as method of substitution, undetermined coefficient method, mathematical induction, analysis, synthesis and induction. In terms of specific methods, commonly used are: observation and experiment, association and analogy, comparison and classification, analysis and synthesis, induction and deduction, general and special, finite and infinite, abstraction and generalization.
When solving mathematical problems, we should also pay attention to solving the problem of thinking strategy, and often think about what angle to choose and what principles to follow. The commonly used mathematical thinking strategies in senior high school mathematics include: controlling complexity with simplicity, combining numbers with shapes, advancing forward and backward with each other, turning life into familiarity, turning difficulties into difficulties, turning retreat into progress, turning static into dynamic, and separating and combining.
3. Gradually form a "self-centered" learning model.
Mathematics is not taught by teachers, but acquired through active thinking activities under the guidance of teachers. To learn mathematics, we must actively participate in the learning process, develop a scientific attitude of seeking truth from facts, and have the innovative spirit of independent thinking and bold exploration; Correctly treat difficulties and setbacks in learning, persevere in failure, be neither arrogant nor impetuous in victory, and develop good psychological qualities of initiative, perseverance and resistance to setbacks; In the process of learning, we should follow the cognitive law, be good at using our brains, actively find problems, pay attention to the internal relationship between old and new knowledge, not be satisfied with the ready-made ideas and conclusions, and often think about the problem from many aspects and angles and explore the essence of the problem. When learning mathematics, we must pay attention to "living". You can't just read books without doing problems, and you can't just bury your head in doing problems without summing up the accumulation. We should be able to learn from textbooks and find the best learning method according to our own characteristics.
4. Take some concrete measures according to your own learning situation.
Take math notes, especially about different aspects of concept understanding and mathematical laws. The teacher is in class.
Expand extracurricular knowledge. Write down the most valuable thinking methods or examples in this chapter, as well as your unsolved problems, so as to make up for them in the future.
Establish a mathematical error correction book. Write down the knowledge or reasoning that is easy to make mistakes at ordinary times to prevent it from happening again.
Submit. Strive to find wrong mistakes, analyze them, correct them and prevent them. Understanding: being able to deeply understand the right things from the opposite side; Guo Shuo can get to the root of the error, so as to prescribe the right medicine; Answer questions completely and reason strictly.
Recite some mathematical rules and small conclusions to automate your usual operation skills.
Or semi-automated proficiency.
Knowledge structure is often combed into plate structure, and "full container" is implemented, such as tabular,
Make the knowledge structure clear at a glance; Often classify exercises, from a case to a class, from a class to multiple classes, from multiple classes to unity; Several kinds of problems boil down to the same knowledge method.
Read math extracurricular books and newspapers, participate in math extracurricular activities and lectures, and take more math classes.
Foreign topics, increase self-study and expand knowledge.
Review in time, strengthen the understanding and memory of the basic concept knowledge system, and repeat it appropriately.
Solid, eliminate forgetting before school.
Learn to summarize and classify from multiple angles and levels. Such as: ① classification from mathematical thought ② solution.
Classification of questions and methods (3) Classification from knowledge application and other aspects. Make the knowledge learned systematic, organized, thematic and networked.
Often do some "reflection" after doing the problem, think about the basic knowledge used in this problem, mathematics.
What is the way of thinking, why do you think so, whether there are other ideas and solutions, and whether the analytical methods and solutions of this problem are used to solve other problems.
Whether it's homework or exams, we should put accuracy first, general methods first, and
Instead of blindly pursuing speed or skill, learning math well is the important issue.
=================================================
How can I learn chemistry well? As the saying goes, everything is difficult at the beginning. As long as you take this step well, you will learn more smoothly in the future.
1. Define the purpose of learning chemistry.
Chemistry is a natural science and a compulsory course in middle school. It is the result of scientific research and practice of countless Chinese and foreign chemists throughout the ages. It compiles some basic chemical concepts, basic theories, knowledge of elemental compounds, basic types of chemical reactions, classification of inorganic substances and their relationships. It is full of the principles and contents of materialist dialectics, and introduces the excellent qualities of many scientists, the scientific attitude of seeking truth from facts and the rigorous style of study. Chemistry plays an important role in industrial and agricultural production, national defense and modernization of science and technology, and people can't live without chemistry.
Chemistry is an experimental science. Through the study of chemistry class, we can master some basic skills of chemical experiments and learn the ability to do experiments by hands, so as to lay the foundation for future scientific experiments.
Therefore, through the study of junior middle school chemistry class, junior three students can not only learn the basic knowledge of junior middle school chemistry, but also be educated by dialectical materialism, patriotic thoughts and behaviors of Chinese and foreign chemists, scientific attitude of continuous exploration and innovation, and rigorous study style. They can also improve their observation ability, thinking ability, experimental ability and self-study ability, and lay a good foundation for studying senior high school chemistry and other technologies in the future.
2. Preview before class
The day before class, you must take time to preview what the teacher will say the next day. Learning to preview before attending classes is a good learning method. Preview has many advantages: (1) it can strengthen the pertinence of lectures, help to find problems, grasp key points and difficulties, and improve the efficiency of lectures; (2) It can improve the level of taking class notes, knowing what to remember, what not to remember, what to remember in detail and what to remember slightly; (3) It can save time for reviewing and doing homework after class. Shorten the time of reviewing and doing homework after class through independent thinking in preview and deep impression left in class; (4) Self-study ability can be cultivated. The process of preview is a process of conscious or independent thinking. If you persist for a long time, your self-study ability will improve.
The method of preview is: (1) Read through the text. By reading the text, you can understand the basic content and key points of the new lesson. You should write down the questions you don't understand or make some marks on the book with a pencil to remind yourself to pay attention in class, listen to the teacher's questions you don't understand consciously and purposefully, and compare them with your own ideas in detail, so as to achieve good learning results. (2) Remove obstacles. On the basis of reading the text and understanding the main content, contact the basic knowledge related to it that has been learned. If there is any forgotten place, review it in time to make up for it, so as to connect the old and new knowledge and bring the new with the old to review the old and learn the new; (3) Determine the key points, difficulties and doubts. After reading through the text and clearing the relevant obstacles, on the basis of understanding the new knowledge, think about the exercises after the text, try to answer them, and find out the key points, difficulties and doubts of the new lesson in the process. If you have the potential, you can also take some preview notes.
3. Listen to every class.
Listening to lectures is the core link in the learning process and the main way to learn and master knowledge. Whether you can master what you have learned in class is the key to determine the learning effect. The merit lies in the classroom and the benefit lies in the classroom. If you can basically master the basic knowledge and skills learned in class, there will be no difficulty in reviewing and doing homework after class. If you don't pay attention in class and don't understand in class, problems that can be solved in a few minutes may take several times to make up after class. Therefore, it is the key to let students concentrate on listening to each lesson in class. When listening to the class, you must concentrate on it, not only listen carefully to the teacher's explanation, but also pay special attention to the ideas that the teacher has said and the key points and difficulties that have been repeatedly emphasized. While listening to the class, take notes, mark or write down what you don't understand, and ask the teacher or classmates in time after class. At the same time, we should also pay attention to students' answers to teachers' questions and teachers' evaluation of students' answers: which are correct, which are incomplete and inaccurate, and point out mistakes, so as to deepen our understanding of knowledge and judge right and wrong. Classroom teaching is a two-way activity of teaching and learning. Students are the main body and teachers play a leading role. Students should actively participate in classroom teaching. In class, we must eliminate all distractions and distractions, keep our eyes on the teacher, follow the teacher's lectures and demonstrations, think positively, observe carefully, speak enthusiastically, remember in time, seize the time given by the teacher in class, do a good job in class exercises and try to digest what we have learned in class.
4. Take notes carefully
Taking notes is also an important part of learning chemistry well. Taking notes can not only concentrate and improve the efficiency of class, but also help you review after class. So learn to take notes and form a good habit of taking notes. Therefore, while listening carefully, we should also take notes. The types of notes are:
(1) Supplementary explanation. Make supplementary notes in the new class. The teacher's content is to reorganize the teaching material content according to the students' reality and highlight the key points. Taking notes means listening to the lecture while reading, marking the key points in the book, copying down the outline and key points written by the teacher on the blackboard while speaking, writing a few words about the key points, laws, substantive contents and places that briefly inspire you in the book or notebook, and writing down the teacher's notes.
(2) experimental notes. Teachers' demonstration experiments and students' grouping experiments focus on verifying chemical principles or mastering chemical properties or preparation methods of substances through experiments. You can make concise illustrations and supplementary explanations, and record the phenomena and explanations of the demonstration experiment made by the teacher. If there are experimental illustrations in the book, you can supplement them directly. For example, write the teacher's key points on the side of the schematic diagram of the oxygen laboratory preparation device: ① Drugs should not be piled at the bottom of the test tube, but should be laid flat on the bottom of the test tube, remember: "It is to increase the heating area, so that the drugs can be heated evenly and the gas can easily escape"; ② When heating the test tube, why do you reheat the alcohol lamp after coming down from the test tube, and then focus on the medicine? Note: "Let the test tube be heated evenly and not easily broken".
(3) Correct the wrong notes. Exercise or examination paper evaluation is a classroom where teachers correct the "conventional weapons" in students' homework or examination papers and guide the thinking, rules, skills and methods of solving problems. Don't just copy the correct answers in class. The key is to correct with a red pen, and don't erase your own wrong solution, so as to compare with the correct answer and find out the reason for the wrong answer. Do the wrong question again after a while to see if it is really there now. This kind of note is a concise "eyebrow criticism" or "annotation" between assignments or test questions.
(4) system comments. When reviewing the summary lesson, the teacher systematically summarized the contents of the textbook, which is not in the book, so he should take systematic notes. Divide each side of the note into two parts, half of which are written on the blackboard and the other half are explained. After class, we should organize, modify and supplement the review to make it a whole, so as to deepen and consolidate the knowledge we have learned and improve the ability of knowledge summary and comprehensive review. The forms of notes are: ① outline, mainly written, suitable for summarizing the main contents of textbooks or summarizing formulas, theorems and concept points; (2) Outline formula, expressed by chemical formula, relational formula or relational block diagram, is suitable for summarizing the properties, preparation, mutual changes and calculation knowledge of elements and their compounds. ; (3) Chart type, represented by words, tables and line charts, is suitable for classifying and comparing related concepts, basic principles of chemistry, material properties and experiments.
5. Careful observation and hands-on experiments
Chemistry textbooks for compulsory education have compiled 8 1 demonstration experiments,1compulsory student experiments and 9 selected experiments, and arranged 13 small family experiments. Therefore, through these demonstrations and students' experiments, learning to observe the operation and phenomena of teachers' demonstration experiments, learning to do students' experiments independently and having a good experiment class are the basis for learning chemistry well.
First of all, we should carefully observe the operation and experimental phenomena of every demonstration experiment done by the teacher in class. The chemistry experiment is very vivid and intuitive, and the ever-changing phenomena in the experiment can best stimulate students' interest. However, if students only watch the excitement and don't think about the phenomenon, they won't know what is going on after reading it, which will not help improve their study. Therefore, observation should have a clear purpose. What should be observed clearly before observing the experiment? What is the scope? Solve what problem? This is the purpose of so-called clear observation. Only with a clear purpose can we grasp the key points of observation and observe. Careful and comprehensive observation. For example, the demonstration experiment of hydrogen reduction of copper oxide aims to verify the redox reaction, and copper oxide is reduced to copper by hydrogen. When observing, it is clear that the reactants are colorless hydrogen and black copper oxide powder, the reaction conditions are heating, and the products are water and bright red copper.
Secondly, in order to give students a good experimental class, we must preview before class and make clear the purpose, principle and operation steps of the experiment. When conducting an experiment, do it yourself, don't be a bystander, carefully do every experiment arranged in the experimental content, pay attention to it during the experiment, operate in strict accordance with the experimental requirements, practice the basic operation repeatedly, patiently and carefully observe various phenomena during the experiment, think carefully, and record accurately and truly.
6. Review in time after class
The content of a class can be reviewed in more than ten minutes, and sometimes it can be repeated like a movie. Review can deepen understanding and consolidate knowledge.
The review should be timely, not delayed. Ask the teacher if you have any questions you don't understand in the review, so that you won't leave obstacles and doubts in your study. When reviewing, you should pay attention to the textbook, read the handout, read it repeatedly, remember the teacher's explanation while reading, and understand the contents of the book.
7. Finish your homework carefully
Doing homework is an excellent opportunity for practice and one of the important means to consolidate knowledge. Students must do it by themselves and never copy other people's homework. The exercises after the festival and the review questions after the chapter must be carefully completed and not sloppy. Do your homework after review, in order to get twice the result with half the effort. We must actively and independently complete each assignment, think more and ask more questions, and keep all the assignments in mind as much as possible, because without memory, there is no solid knowledge. Only by careful memory can practice make perfect, and we can be "smart" on the basis of diligent practice.
8. Learn to read textbooks
Reading is generally divided into rough reading and intensive reading. Rough reading is mainly used for preview. Through rough reading, we can understand the general content of basic knowledge, master the outline and general idea of the whole chapter, section or subtitle, and understand what the experimental content is. In this way, you will have a bottom when you watch the teacher do the demonstration experiment in class. Intensive reading, you can understand the key points of the textbook, find the problems you don't understand, and know what to do when you listen to the class.
Intensive reading means carefully reading, understanding and memorizing key contents and definitions, and connecting these contents with related old knowledge. Intensive reading is mainly used for after-class review, deepening the understanding and consolidation of knowledge and systematizing knowledge.
In intensive reading, on the basis of understanding the concept definition or the full text of the law, we should analyze the key words and strengthen our understanding of the key words. For example, the definition of electrolyte: "Any compound that can conduct electricity in aqueous solution or molten state is called electrolyte", and the key words are "compound" and "or". Non-electrolyte is "a compound that cannot conduct electricity in aqueous solution and molten state", and the key words are "He" and "Du". Think carefully about these keywords and mark or criticize them for future review.
For more profound materials and important paragraphs, read word for word. Think carefully, analyze and sort out, and form the habit of taking notes. You can write down important contents and keywords in your notebook, or you can write down your own thoughts and understanding of a certain problem, or you can write down questions you don't understand for future reference.
9. Read chemistry extracurricular books
To learn chemistry well, we should pay attention to reading extracurricular books, such as Chemistry Teaching Reference for Middle School Students, Mathematical Physics for Middle School Students, Inside and Outside the Classroom and other popular science books. Their contents are closely related to the chemistry syllabus and textbooks, and they have strong pertinence and applicability. It is necessary to cooperate with the teaching progress, guide the analysis of problems, pay attention to intellectual development, and pay attention to ability training. They have a wide range of novel themes, rich and colorful contents, short and pithy articles, easy to understand, lively forms and illustrations. It can help students broaden their horizons, expand their knowledge, stimulate their interest in learning, master learning methods, thoroughly understand teaching materials, flexibly use knowledge and cultivate the spirit of exploration. They are good friends of the students.