Talking about how to learn high school chemistry well is a basic, creative and practical subject, and it is a science that studies the composition, structure, properties and changing laws of substances. It is an important foundation of information science, material science, energy science, environmental science, marine science, life science and space technology. In my years of teaching practice, I found that many high school students are not enthusiastic about learning chemistry. They think that chemical knowledge is irregular, complicated and difficult to master and remember. They think that the topics they have done have nothing to do with textbook knowledge, and often ask teachers: How can we learn chemistry well? Ask teachers to teach them learning methods blindly, and some even regard it as a shortcut, thinking that there is a shortcut. I am here to tell you clearly: there is no shortcut to learning, and the only way is to study hard and practice hard. The ancients also said: "Shushan has a hard road, and learning the sea is endless." If there is a shortcut, some ancient people, some experts and scholars have already studied it and written a book. We can't tell the big industrialists now. Then again, although there are no shortcuts to learning, it does not mean that learning needs to pay attention to methods. However, only on the basis of diligent study and hard practice can there be exquisite methods. How to pay attention to methods on the basis of diligent study and practice? According to my years of teaching practice, I would like to talk about some experiences: First, intensive reading of textbooks is the basis of knowledge. Be sure to preview the new content before taking a new lesson, have a preliminary understanding of the new knowledge, and listen carefully and understand what you have learned during the teacher's teaching. Then carefully read its content word by word, and master its essence and significance. When reading, you should think while reading, contact the teacher's lectures and experiments in class, contact the life knowledge around you, ask more questions, mark the difficulties you don't understand, consult teachers and classmates in time, basically make the concept clear and understand the basic theory thoroughly, and then complete an appropriate amount of homework, which not only thoroughly understands the knowledge, but also consolidates it, saving time and being able to use it freely. In order to correctly understand and flexibly use "the quantity of matter", we must read the following related concepts: the quantity of matter-the unit of the quantity of matter-the Evan Garderot constant-12 gram of carbon. Second, it is concluded that some students love chemistry and are afraid of it. One of the reasons is that chemistry is "complicated, difficult and chaotic". We can learn to solve these problems through induction. 1, starting from relevant knowledge points and focusing on the structure of substances, summarizes the learned chemical knowledge. For example, when studying nonmetallic substances and their compounds, we can systematize our knowledge in the following order: the properties of nonmetallic simple substance-the properties of hydride it forms-the properties of oxide it forms-the properties of hydroxide it forms-the properties of main salt it forms. The representative substances in each family can be studied in the following order: structure-property-use-preparation-existence-preservation, etc. 2. Summarize substances according to their characteristics, such as substances related to "yellow": S, Na2O2, AgBr, AgP, Ag3PO4, and a small amount of Br2 dissolved in nitric acid solution containing Fe. In terms of organic matter hydrolysis, esters can be hydrolyzed by acid or alkali, protein can be hydrolyzed by acid and alkali, and sugars can only be hydrolyzed by acid and alkali. 3. Summarize the problem-solving methods according to some typical examples. The calculation in chemistry is mainly based on the "quantity of matter", and the mathematical knowledge used mainly involves ratio and proportion, binary linear equations and so on. Chemical principles are difficult to explain clearly. The mathematical model can only be established after the chemical principle is clear. Common calculation methods can be summarized as: conservation method, crossover method, average method, estimation method, extreme value method, transformation method, deformation method and so on. Third, skilled memory 1, thorough understanding of memory knowledge, rapid memory, and firm memory. For example, when we remember the properties of aldehydes, we must first understand that aldehyde groups are functional groups of aldehydes, and the properties of aldehyde groups are mainly reflected in functional groups. At this time, we can remember that the main chemical properties of aldehydes are addition reaction and oxidation reaction. By understanding the composition of polymer bonds, we can deduce their bodies. We can understand the periodic law of elements and the formation of the periodic table of elements, and then we can deduce the position of elements in the periodic table and their main chemical properties, which is convenient for memory. 2. Inductive memory Associating, combining or blocking knowledge according to certain rules can enhance the interest and effect of memory. Such as common liquefied gases HF, NH3, CL2, CO2, SO2, etc. There are turbid solutions, solutions, NaAlo2 solutions, C6H5ONa solutions, saturated solutions, etc. At this time, we can choose different inductive methods according to our own characteristics and individual differences, such as inductive memory according to the main family of the periodic table of elements and inductive memory according to the order in the textbook. 3, comparative memory For knowledge that is easily confused and interfered with each other, through comparison, we can distinguish similarities and differences and prevent interference. For example, the four concepts of isotope, isomorphism, homologue and isomer can be compared and remembered. We can compare and remember the structures and properties of atomic crystals, ionic crystals, molecular crystals and metal crystals. For Na2O and Na2O2, Na2CO3 and NaHCO3, different kinds of substances in organic matter can be remembered by comparison. 4, nursery rhymes memory For some chemical knowledge and methods that need to be memorized and irregular, some popular and vivid nursery rhymes can be compiled to help remember. For example, the filtration experiment operation is summarized as "one paste, two low, three rely on", and six words contain the whole operation process and precautions. The steps of redox reaction balance based on agenda are compiled into a Song formula, "mark the price, find the change, find the multiple, match the others"; The operation of the separating funnel is summarized as "downward flow and upward flow"; Summarize the operation of washing gas cylinders as "long in and short out". The change code of the anode of electrolytic cell is "active atoms in, inert ions out" and so on. Fourth, diligent practice is an important way to understand, digest and consolidate classroom knowledge. Practice should be purposeful and targeted, not just to solve problems, let alone engage in sea tactics. After-class exercises serve the knowledge done in class, and the main points of knowledge in class should be reviewed before practice. When analyzing an exercise, we should consider what knowledge points are used in class, which are the supplement, extension and development of classroom knowledge, and which are used together with old knowledge. After practice, you should think about what knowledge has not been applied to practice, but you still have to master it. That is, sum up after practice and reproduce what you have learned in your mind, so as to draw inferences from others and draw inferences from others. Personal views are for reference only! ! ! ! ! ! ! ! !