Hello, every problem of science learning method in senior high school is easy to learn, but if it is done, the key point is fun! Come on! Senior two is a critical period for senior three, which not only has a heavy course task, but also largely determines the future development direction of students and whether they can be admitted to an ideal university. Experienced teachers teach you the learning skills of senior two subjects, hoping to help senior two students master good learning methods and improve learning efficiency. Mathematics focuses on cultivating the ability of observation, analysis and reasoning. Chen Jianshe (the tutor of the math competition interest group in Nan 'an No.1 Middle School) has a strong interest. High school mathematics has abstract concepts, many exercises and high teaching density. Therefore, after the first year of high school, some students are afraid of mathematics. In fact, it is not difficult to learn mathematics. The key is whether you are willing to try. When you dare to guess, it shows that you have mathematical thinking ability; And when you can verify the conjecture, it means that you have a talent for learning mathematics! Seriously study senior two mathematics, what you can understand is: how to make objects that meet the requirements with the least materials; How to allocate resources and put them into production to get the maximum profit; Why beautiful curves can be associated with algebraic equations; Why it is much easier to have a car accident than to win the sports lottery; Why do students with the same birthday often appear in all classes in a year … When you fall into the trap of mathematical charm, you have taken the first step to learn mathematics well! Cultivate the ability of analysis and reasoning. In fact, mathematics is not a subject of knowledge and experience, but a subject of thinking, and high school mathematics fully embodies this feature. Therefore, mathematics learning focuses on cultivating the ability of observation, analysis and reasoning and developing learners' creative ability and innovative thinking. So in the process of learning mathematics, we should consciously cultivate these abilities. The relationship between learning methods and grades can be described as follows: when you are willing to understand the answers to most questions, your exam results should be easy to pass; When you are keen on studying all kinds of questions and making regular summaries, you must be an excellent student in class mathematics; And when you are used to doing your own problems and solving them according to the definition of mathematics, your mathematics level can already keep pace with the teacher! Try these learning methods. Students with different learning levels need different learning methods. If you are worried about the low state of mathematics learning, please follow the following requirements: after previewing, you can get twice the result with half the effort by coming into the classroom with questions; It is ignorance to finish the beautiful homework, and it is more reasonable to correct it seriously if you do something wrong; The exercise required by the teacher is not a "sea of questions". Please finish it carefully. If there is a genius who can learn math well with fewer words, it is not you. In the exam, the correct rate is as important as the speed of doing the questions, but giving up some questions reasonably can help you play your normal level. If you are depressed because of the slow progress in mathematics, please accept the following suggestions: collect the wrong questions you have made, correct and write down the reasons for the mistakes, which are your personal wealth; For exam results, set yourself an acceptable bottom line and a goal within your power; Reasonable schedule and good study habits will help you get stable academic performance, so please make a good study plan and stick to it; If you spend a lot of time on a subject, you'd better allocate your study energy to each subject reasonably. People often have "plateau phenomenon" in the study of a certain knowledge field, that is to say, to a certain extent, no matter how hard they work, their progress will not be obvious. Zheng (head of the physics preparation group of Grade Two in Quanzhou No.7 Middle School) completed his study task on time and was promoted to Grade Two. Students should adjust their study time in time, and pay attention to the fact that the study tasks of the day should be completed on the same day, and there should be no problems left, and no little makes a mickle. The more questions there are, the greater the pressure of study, which affects the confidence of learning physics well. Generally speaking, high school physics knowledge system is tight and complete, and knowledge is systematic. Therefore, we should pay attention to mastering systematic knowledge and cultivating methods to study problems. Paying attention to experiments and being diligent in experimental electrical experiments is a difficult point in high school physics, and it is also the content of college entrance examination. We must learn this part well. Before doing the experiment, we must understand the principles and steps of the experiment, pay attention to observation and do every experiment well. Students who have the ability can design some experiments by themselves and go to the laboratory for verification. This is of great help to the improvement of experimental ability. Compared with Grade One and Grade Two, the combination of listening and self-study has more teaching content and larger classroom capacity. Students must pay attention to the teacher's explanation and keep up with the teacher's ideas. Listening carefully in class is the most direct and effective way for students to learn methods and improve their ability. Think positively in class, keep asking yourself questions, and then get answers by listening. To realize the high efficiency of the classroom, we must preview before class, pay attention to the connection between old and new knowledge, integrate the newly learned physical concepts and laws into the original cognitive structure model, quickly master new knowledge and successfully transfer knowledge. Preview not only increases your understanding of relevant content, but also improves your reading comprehension and examination ability. Over time, students' self-study ability will be greatly improved. Review and summarize regularly. In the process of learning, we should develop the good habit of reviewing and summarizing regularly. Review is not a simple repetition of knowledge, but a process of sublimation and improvement. First, review on the same day, which is one of the efficient and time-saving learning methods. The second is to review at the end of each chapter, make clear the main line of knowledge in each chapter, master its knowledge structure and systematize knowledge. Find out the relationship between section and chapter, and establish a new cognitive structure and knowledge system. It not only consolidated and deepened knowledge, but also learned methods and improved ability. There are not many things in physics that simply need to be remembered, and most of them need to be understood. Through systematic and effective review, we will find that thick physics textbooks are actually "very thin". Try to classify the exercises you have done, find out the corresponding solutions, and change the bad study methods, study habits and study psychology as soon as possible. It is very important to master the "seven meetings" in chemistry. Jiang Xirong (deputy head of chemistry teaching and research group in Jinjiang Zheng Yang Middle School, a first-class teacher in middle school) should know the key points of each chapter. The second chapter "chemical balance" and the third chapter "ionization balance" are important basic theoretical knowledge of high school chemistry, and they are also the key and difficult points in this school year. Textbooks are theoretical and abstract. Only by learning these two chapters well can we better cultivate our analytical ability and problem-solving ability, realize the importance of learning chemical theory, use chemical theory to better understand and master middle school chemistry knowledge, and solve or explain some simple practical problems in chemical production and daily life. The fifth to eighth chapters are about organic chemistry, which plays an extremely important role in improving the national economy and people's living standards. Learning this knowledge well is conducive to better survival in modern society, and it is also conducive to better learning other basic knowledge of natural sciences related to chemistry (such as biology). Although there are many kinds of organic compounds, there are many rules, so we must be good at summing up to learn organic chemistry better. In addition, learning chemistry well in senior two requires "seven skills". Learn to master the "seven meetings" and learn to teach yourself. Learning to teach yourself can take the initiative to accept book knowledge, and preview is a necessary step to learn to teach yourself. Learn to listen to lectures. When listening to chemistry class, you should focus on your eyes, your heart (that is, your mind is concentrated), your ears and your hands. The key is your heart, that is, use your brain, think positively and want to understand what you have learned. Learn to read. You can use the five-character reading method, that is, "read, think, ask, write and remember". Learn to compare and summarize. Can make unfamiliar things familiar, so as to realize the mastery of new knowledge. For example, when studying the nitrogen group elements in the first chapter, we can deduce their similarity and gradual change in nature according to their similarities and differences in atomic structure, and pay attention to the horizontal comparison and induction of halogen group elements and oxygen group elements learned in high school for one year, which is not only conducive to understanding new knowledge, but also to consolidating the mastery of old knowledge. Learn to question. That is, ask why, look at existing things with a critical eye, and achieve a profound understanding of chemical facts. To be good at questioning and discovering problems, we must learn to observe things comprehensively and analyze and compare them on this basis. You can use the method of "thinking backwards and finding anomalies" to ask questions, or you can use the method of "being good at comparison" to find problems, "chasing after them" and "asking questions". Learn to remember. Everyone knows that chemistry belongs to science, but in the process of learning, you should feel that it has great liberal arts characteristics: much content, broken knowledge, and mostly experimental conclusions. You should accurately remember every chemical equation and the typical physical and chemical properties of each substance you have learned, remember several common problem-solving methods and basic experimental operations, and then integrate your memorized knowledge after some training, and finally form your ability. At the same time, we should pay special attention to the relationship between research-oriented teaching materials and problem solving. Specifically, the energy allocation for studying textbooks and doing problems can be 4 to 6 or even 3 to 7. Deng (leader of biology teaching and research group in Jinjiang Middle School, senior middle school teacher and outstanding young teacher in Fujian Province) changed his concept of biology learning. For senior two students, biology teaching still belongs to "enlightenment education" in a sense, because the biology that senior two students study in junior high school does not belong to the examination subjects or the senior high school entrance examination subjects. Many biology classes in junior high school are basically going through the motions, often. Therefore, when studying biology in senior high school, students are first required to change their concepts and realize that biology in senior high school and biology in junior high school are very different in depth and breadth of knowledge. In addition, the relationship between chapters in the textbook is not completely progressive, and you may feel more abstract when you first start learning. Don't be afraid of difficulties at this time. If I want to learn biology well in senior high school, I think I should do a good job in preview, listening, review and homework. The first chapter "Material Basis of Life" of senior two biology involves a lot of organic chemistry knowledge, but at this time, students have not learned organic chemistry. Therefore, it is particularly important to preview this part of the teaching content in order to avoid falling behind from the beginning. Draw what you don't understand when you preview, and remind yourself of what you should pay special attention to in class tomorrow, so that the class will be more purposeful. The three methods are combined and reviewed constantly, and the old knowledge is learned. Some knowledge in biology textbooks will appear in different chapters, such as knowledge about DNA, which we will learn in the introduction, compounds that make up organisms, heredity and variation. The functions of various organelles are described in detail in the section on metabolism. When learning the latter knowledge, we should pay attention to continuous review, connect the former knowledge with the latter knowledge, form a knowledge network, and learn new things by reviewing the past. Use charts and be good at induction. There are a lot of charts in the textbook, so you should make good use of them when reviewing after class. For example, after learning the chapter "Cell, the basic unit of life", we can review the structure and function of each part of the cell by using the "submicroscopic structure diagram of animal cells" and "submicroscopic structure diagram of plant cells". In addition, when reviewing, you can also compare many knowledge points by yourself, such as the comparison between mitochondria and chloroplasts, the comparison between animal and plant cell structures, and the comparison between mitosis and meiosis. Combine practice and apply what you have learned. Biology is a science closely related to production and life. When reviewing biological knowledge, we should pay attention to understanding the relationship between science and technology and society (STS), understanding the social value of the learned knowledge, and using the learned biological knowledge to explain some phenomena and solve some problems. In recent years, the proportion of questions that combine science with biology in the college entrance examination has also increased year by year.