How to learn chemistry well in high school

How to learn chemistry well in high school Teacher Ou Weichan Chemistry is a very attractive subject. However, due to the characteristics of high school chemistry as "complicated, difficult, and chaotic", many students find it difficult to learn high school chemistry. So how can you learn chemistry in high school?

1. Listen carefully and take good notes. Good notes are the condensation, supplementation and deepening of textbook knowledge, and the presentation and refinement of the thinking process. Since the knowledge points of chemistry are numerous, fragmented and scattered, in addition to listening carefully and thinking positively, in addition to listening carefully and thinking positively, we should also write down the key and difficult knowledge of the teacher in our own words on the basis of understanding, so as to facilitate future review.

2. Review in a timely manner. Revision is not just a simple review of knowledge, but considering the interconnection of old and new knowledge in one's own brain, and reorganizing it to form a new body of knowledge. Therefore, after class, it is necessary to review the content of the lecture in a timely manner, and do a good job of sorting out and summarizing the knowledge, so as to make the knowledge integrate and avoid the phenomenon of more and more chaos in learning.

For example, if you learn about the bleaching properties of SO2 and chlorine water, you can compare them to find out the differences. 3. Learn to memorize because there are many chemical knowledge points to memorize, it is difficult to memorize if you rely on rote memorization, so you should learn to memorize skillfully. Commonly used memorization methods in chemistry are:

Comparative method (often used for confusing and interfering knowledge.) The four similar concepts of isotope, allotrope, homologue, and isomer can be deepened and remembered through comparison. ), induction, song recipe memory, comprehension memory, and experimental memory.

4. Diligent practice is an important way to understand, digest and consolidate classroom knowledge. However, the practice should be targeted, not a sea of tactics, and should be aimed at mastering the basic methods and the rules of problem solving. In the process of problem solving, it is necessary to pay attention to multiple solutions and inductive summarization of one problem, so as to achieve the effect of doing one problem and one category.

For example, the techniques commonly used in chemical calculation include: conservation method, relational method, extreme value method, average value method, estimation method, difference method, etc. 5. Prepare a "mistake book" The purpose of doing questions is to cultivate ability and find an effective way to find your weaknesses and deficiencies.

Therefore, mistakes should be corrected and recorded. When recording, you should analyze the reasons for the error and the correct solution idea in detail, and do not simply write an answer. At the same time, it is important to go through the review frequently so that you can avoid similar mistakes in the future.

6. Pay attention to chemical experiments Chemistry experiments can not only cultivate students' ability to observe, think, and practice, but also deepen their knowledge and understanding of relevant knowledge, so we must pay attention to chemical experiments. When doing experiments, we should ask a few more whys, think about how to do it, why we do it, and what else can be done, so as to achieve the purpose of "knowing what it is and why it is true". In addition, in order to study chemistry well, we should pay more attention to social hot issues and life problems related to chemistry, and be good at combining book knowledge with practice.

In short, as long as the learning method is correct, I believe that students will easily learn chemistry well.

Chemistry] It is very important to master the "Seven Skills" The key points of each chapter should be well known Chapter 2 "Chemical Equilibrium" and Chapter 3 "Ionization Equilibrium" of chemistry in the second year of high school are important basic theoretical knowledge of high school chemistry, and they are also the focus and difficulty of learning in this school year. Only by studying these two chapters can we better cultivate our analytical ability and problem-solving ability, realize the importance of learning chemical theories, better use chemical theories to understand and master the knowledge of chemistry in middle school, and solve or explain some simple chemical production and practical problems in daily life. Chapters 5 to 8 are organic chemistry, which plays an extremely important role in the improvement of the national economy and people's living standards.

Although there are many types of organic compounds, there are also many regularities, and we must be good at summarizing and summarizing in order to better learn organic chemistry. In addition, to learn chemistry in the second year of high school, you need "seven skills". Learn to master the "Seven Skills" and learn to study the textbooks on your own.

Learning to self-study is the only way to actively accept book knowledge, and preview is a necessary step to learn self-learning. Learn to listen to lectures. Listening to chemistry class should be engrossed, so that the eyes, the heart (i.e., the mind is concentrated), the ears and the hands, the key is the heart, that is, to use the brain, positive thinking, and to understand what is being learned.

Learn to read. You can use the "five-character" reading method, that is, "read, think, ask, write, and remember". Learn to compare inductions.

It can make unfamiliar things familiar and realize the acquisition of new knowledge. For example, when learning the nitrogen group elements in the first chapter, according to the similarities and differences in their atomic structure, the similarities in their properties and the gradual change law can be deduced, and attention should be paid to the horizontal comparison and induction of halogen elements and oxygen group elements learned in the first year of high school, which is not only conducive to understanding new knowledge, but also consolidating the mastery of old knowledge. Learn to question.

That is, to ask why, to look at what already exists with a critical eye, and to achieve a deep understanding of chemical facts. To be good at questioning and discovering problems, we must learn to make a comprehensive observation of things, and analyze and compare them on this basis. You can use the method of "reverse thinking and perceiving abnormalities" to ask questions, or "be good at comparison" to find problems, and "chase after them" and "get to the bottom of them".

It is necessary to accurately memorize every chemical equation and the typical physical and chemical properties of each substance that has been learned, memorize several commonly used problem-solving methods and basic experimental operations, and then after a certain amount of training, integrate the memorized knowledge, and finally form the ability. At the same time, special attention should be paid to the relationship between studying textbooks and doing problems. Specifically, the distribution of energy between studying the textbook and doing the problem can be 4 to 6 or even 3 to 7. Beg.

1. For the study of high school chemistry, there should be a good study plan, a good plan is half the success, the study plan includes a unit study plan, a semester study plan, etc., only a good study plan can be designed to have a goal and direction when learning.

2. Before each chemistry class, you should preview the content to be learned in the chemistry textbook of this class, such as equations, reaction principles, concepts, etc., and mark the unclear questions, and you must know what you don't know, only in this way can you have a general understanding of what you want to learn.

3. Of course, the most important thing to learn chemistry well is to listen carefully in class, because the knowledge of chemistry is relatively fragmented, you must take good notes in class, concentrate on listening in class, learn according to the teacher's ideas, and think positively.

4. Chemistry is an experiment-based subject, so there will be some experimental courses, for the experiments to be done, we must first understand the purpose of the experiment, the experimental principle, the experimental method, the experimental procedure, etc., and then do the experiment carefully in the experimental class, and carefully observe, and do a good record of the experiment, of course, we must develop good experimental habits when doing experiments, maybe some habits of doing experiments may be the content of the exam.

5. Strengthen extracurricular reading and expand the level of knowledge, Sukhomlinsky said: "If a student does not step beyond the framework of the textbook, then it is impossible to say that he has a stable interest in knowledge. Therefore, in addition to intensive reading of textbooks, in order to expand their knowledge horizons, summarize knowledge content, improve problem-solving skills and master problem-solving methods, it is necessary to order a high-quality, accurate, and practical synchronous tutorial material.

If you are not familiar with the equation, you can list the relation, the basis of the relation is several conservations, conservation of materials, conservation of electrons, conservation of ions, you can list according to your needs. This requires a considerable understanding of the chemical valence of the elements in each chemical formula, so the basic reaction equations in the textbook must be written without even thinking about it. In fact, high school chemistry can be taught on your own.

When you do a problem, you see that it feels familiar, you think about what you have done that the questions are similar, and then think of something related in your mind, quickly seize the inspiration, make notes next to the topic, and record the inspiration. Every semester, I have to look at a certain number of questions, every question I don't understand, try not to ask questions, until I can't think of it for a long time, and then ask it, so that it can be more profound.

The periodic table must be memorized, it is very important, it is a basic thing.

Organic chemistry, high school, is also very simple, mainly remember the representative hydrocarbon compounds, the characteristic reactions, and so on, as well as typical substitute reactions, when encountering something similar to the group, when you are not sure of the answer, you can boldly imitate the learned equation to solve.

Chemistry, as long as you think about it seriously, in fact, every element, every reaction, each chemical formula is very closely related, like association, is a good thing, you have to hurry to see the topic review, sometimes you only need to read one topic a day, the efficiency can be much higher than people, because you can think of all the chemical formulas related to her according to the reaction of this element, this compound. It also allows you to get interested.

It is recommended to do chemistry problems in a fixed period of time every day, and if you have done chemistry problems, you should know the solution ideas and answers by looking at the questions. This realm is the highest realm of chemistry.

It is necessary to be very familiar with every equation in the textbook, and the principle of each reaction is very profound. The role of each compound is well understood. The foundation is very important, and at any time, you have to be able to do it, and you can recall the content of the whole book by covering the book and reading the table of contents.