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Personally, I think that first of all, the basic skills must be firm, if you don't even know the elements, compounds, chemical formulas, and reaction formulas, then it is impossible to learn chemistry well.
I think the following things you must remember to learn chemistry well:
1.Elements, you don't have to memorize the periodic table, you don't need so much in junior high school, just memorize the elements commonly used in the textbook, remember the names of the elements, how to write the chemical formula, what is the atomic weight, how many valence compounds can be formed, etc., it is best to remember according to the system, that is, the elements with similar properties are remembered together, don't you also learn according to the system? For example, halogens.
2.Chemical formula. As long as the elements are memorized, then the compounds they form together will also be written, of course, there are many compounds of an element, which requires you to flexibly grasp the knowledge of valence, the valence of elements is very important, and it is very useful for you to judge the type of compound and write the reaction formula of the compound.
3.Reactive. Mastering the valence state can be exercised from memorizing the reaction formula, think when I was in junior high school, our teacher wrote the commonly used reaction formula in the textbook on a large piece of paper, let us memorize, the back is not a dead memorization, but to see the law, and then remember the law, the effect of inferences from one case to another in the reaction formula is the most obvious, hehe.
4.Do more exercises, not do it blindly, do it carefully, it doesn't matter if you are wrong, you have to see why, where the mistake is, if it is a mistake in the chemical formula, then you can remember this chemical formula next time, the reaction formula is the same, if the calculation is wrong, next time be more serious, the calculation in chemistry is required to be accurate, so you should be extra serious, do the experimental questions, inference questions, are based on the above three can be flexibly applied to the questions, so the purpose of doing the questions is to let you memorize them, Theory and topic complement each other, hehe.
If you have a weak chemistry foundation, start with the above foundation, and I believe you will definitely improve.
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This is to avoid the phenomenon of partial subjects, as far as your grades are concerned, there is obviously a phenomenon of partial subjects, if you want to improve your grades, you must grasp it comprehensively, and don't let go of a loophole.
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Math is improving relatively quickly, find someone to tutor ah
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Is it true that rosemary improves grades?
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Hello, as a junior high school student, the most important thing at present is to work hard to improve your grades and prepare for the high school entrance examination in the best condition. So how can you improve your grades quickly?
1. Firm determination: how big the heart is, how big the stage is. If you want to improve your grades in a short period of time, then you must have a strong determination to study well. With determination, you can have the courage to face the problems you encounter in your studies, and you can dare to ask your classmates or teachers for advice.
2. Check and fill in the gaps: Take the original test paper and see if the questions you did wrong in the past, will it be now? Those who know how to do it should also be done again to achieve the purpose of consolidation and becoming more proficient.
If you don't know the topic, ask the teacher or classmates immediately to solve the problem, and the knowledge points involved in the topic will be mastered.
3. Strengthen memory: Some subject knowledge points need to be memorized, such as Chinese, English, etc. You can review it in the morning and evening, and make the most of all the time you have available.
4. Pay attention to methods: To improve your grades in a short period of time, methods are very important. Because you are going to cope with the high school entrance examination, for this reason, you must do a good job of systematically sorting out the knowledge you have learned, so that the knowledge can be internalized into something you have mastered.
Every night, you should review what you have learned during the day, think about what you have not mastered, and make up for it the next day. In short, I think that as long as you have a firm determination, pay attention to certain methods, do a good job of checking and filling in the gaps, and then strengthen the memory of some knowledge points, it is completely possible to improve your grades in a short period of time, so as to easily cope with the high school entrance examination.
It is recommended that you plan for further education, there are still many junior high school students who study in high school, plan in advance, so that you will get twice the result with half the effort when you go on to higher education, and it will be easier to achieve your goals.
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The total pressure of the high school entrance examination improves the score. During the revision period, you should do more homework and test papers to improve your grades, and memorize more.
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The following points are required to improve the score of the high school entrance examination:
1. Maintain a good psychological state, not be impatient, and take every step of learning, which is the premise and foundation to ensure learning efficiency. Learn to walk on two legs, while following the teacher's rhythm to study and review. The other leg checks and fills in the gaps by itself, and learns by itself according to its own learning situation.
2. Pay attention to the mastery and review of the basic knowledge of each subject, and then consolidate and improve. Because the proportion of basic knowledge in the high school entrance examination is relatively large, it is necessary to ensure that the basic knowledge questions can be done. To master the basic knowledge, you need to brush up on the questions and then check and fill in the gaps.
Review the questions you have done before, especially if you have made a mistake. After mastering the basics, you can practice some difficult exercises and then continue to consolidate and improve. When you encounter a blind spot in knowledge, you must learn to ask, which can improve efficiency and avoid unnecessary troubles.
3. You need to brush up more questions in the high school entrance examination, and try to analyze the test points of the high school entrance examination in your own test area. Summarize different question types and form a certain answering mode, and you can also buy some test papers for special practice.
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There are a total of 750 points in the high school entrance examination150 points each in Chinese, Mathematics and Foreign Language; 80 points in physics, 70 points in chemistry, 50 points in ideology and morality, and 50 points in history, and 50 points in the physical education examination will be included in the total score of the high school entrance examination. 100120+120+120+100+100+100=750。
Ways to improve your high school entrance examination scores:First of all, you should pay attention to the review part and use some skills in the review process. In this way, you can get a better review effect.
When reviewing, we should first pay attention to the review of textbook knowledge, some students may think that there is no knowledge in the textbook, it is very simple. Actually, it's not, it's a misconception.
Second, you should work hard to improve your grades in the process of doing the exercises. Doing exercises is actually an application and perception of the knowledge learned, and we must pay attention to the process of application and perception, remember: the process determines the result, if a student blindly pays attention to the result of doing the problem, and ignores the experience of the problem-solving process, it is very dangerous.
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The high school entrance examination is approaching, and the annual high school entrance examination tugs at the heartstrings of candidates and parents, and at the same time, the society is also attracting attention. As a staged selection competition, the high school entrance examination requires balanced development of all subjects and excellent results in the high school entrance examination. So, how to improve the score of the high school entrance examination in a short period of time?
Chinese: Grasp the basic knowledge and do theme review.
The quality of the first language test determines the success or failure of the whole test. So, how do you make the final revision sprint? The first is to be familiar with the content of the inspection and strengthen the awareness of the goal.
In the review process, as long as you analyze, summarize, adjust, check the defects, and treat the symptoms in time, the review can be truly targeted. The second is to implement the basic knowledge and do a good job in theme review. Let the students stand on a high platform and look down on the language knowledge system, so as to eliminate the confusion of seeing the trees and not seeing the forest.
The third is to simulate the training of the high school entrance examination to improve the comprehensive ability. Combine the latest exam information, simulate exam training, check your own review effect, increase practical experience, check your own knowledge system, and form a complete knowledge network. Fourth, master the technology and standardize the answers.
Practice has proved that candidates who master the technique and standardize the answers are more likely to score higher than those who play freely.
Mathematics: Grasp the basic concepts and summarize the methods of problem solving.
How do I review math in the last period? First of all, it is necessary to grasp the basic concept and use it as a technological breakthrough. Secondly, it is necessary to grasp the commonly used formulas and important theorems and understand their ins and outs.
Thirdly, grasp the trend of this year's high school entrance examination, practice the problem solving specifications, and finally grasp the mathematical ideas and summarize the problem solving methods.
In addition, when the problem is solved, it is necessary to deal with the relationship between reviewing the problem and solving the problem, first review the problem, deal with the relationship between what can be done and score, require Bi Min to get full marks for the problem that can be done, and must deal with the relationship between the fast and accurate score of the problem that cannot be done.
English: Follow the teacher and implement the knowledge points.
The high school entrance examination is imminent, and some students spend a lot of time in the process of reviewing English, but there are still such problems, the effect is not good, and they are very confused.
The first is to listen carefully in class and follow the teacher. To a large extent, this helps students to avoid detours, save a lot of time, and improve efficiency. Some students do not take classes well and spend a lot of time studying at home, which is inefficient and ineffective, and the effect of re-brother learning is greatly reduced.
The second is to pay attention to the foundation and implement the knowledge points. The mastery of knowledge points must be accurate and proficient. Don't read the knowledge points from beginning to end.
After reading it, it can't be done. At the same time, don't waste a lot of time from start to finish, you don't need to memorize what you can. The third is to deal with each assignment like an exam.
Master the rhythm of the problem and improve the problem technique. Fourth, it is necessary to appropriately strengthen reading training, apply reading skills to reading, and form reading habits, which will help remove many obstacles.
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To improve your grades, you must first make a good reading plan and arrange your time reasonably. It is not enough to have ideals, and if you don't have a good concept of reading, then it will be difficult for you to improve your grades. Here are 3 ways to improve your grades:
1. Learn to integrate knowledge points: learn to associate new knowledge with what you have learned, and constantly improve your knowledge. This promotes understanding and strengthens memory.
Only by actively reading books can you feel the joy of it, and your efficiency will be improved unconsciously.
2. Moderate exercise: I hope that students can exercise moderately according to their own situation, which can relieve tension, improve reading efficiency, and ensure that they have a clear mind when answering questions. Read the knowledge in advance before class, so that you can build a knowledge framework in advance and improve the efficiency of reading.
3. Plan: First of all, you must make a reading plan for yourself, so that you can have a direction and motivation to move forward. Not only do you have to review the important things that are taught in class, but also those that you still have vague understanding.
When I was in the first year of junior high school, my comprehension was often not good, and I couldn't listen to lectures, which led to my poor grades in various subjects. Next, I found the "Nikola Tesla Training" that can enhance my IQ, and after listening to it, the situation began to improve. Much progress has been made in all subjects.
I think you can achieve your goals, keep up the good work!
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Study hard
Of course, you should listen carefully in class and review well after class.
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Consolidate the knowledge you have learned before, and then concentrate on redoing the previous mistakes and the like, and then install the teacher's progress, don't panic too much, and relax your mind.
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In addition to having a good way to improve your grades, you should also be proactive. You can improve your grades in the following 3 areas: 1. Active reading:
Only by actively reading can you become more and more interested in reading, and you will unconsciously improve your reading efficiency. It is necessary to abandon the burden-bearing mentality of "doing it here" and overcome the timidity of being timid.
2. Create an environment: Try to keep the home as quiet as possible, so that there is an atmosphere for reading. The future is in your own hands, and the only thing to do is to calm down, bury your head in reading, and live up to the last time of junior high school.
3. Pay attention to rest: Reading must be a combination of work and rest, in the case of tiredness, the brain's ability to operate slowly, should relax and rest, in order to improve the efficiency of reading. For the knowledge learned that day, it is necessary to consolidate it in time, and you can click through the knowledge you have learned during the day when you are about to go to bed every day, and you will find it very effective the next day.
I still remember that when I was in the third year of junior high school, my concentration was often very poor, and I was always distracted by memorizing ancient poems, which caused my grades in all subjects to be very poor. Later, I searched for it and found the "Nikola Tesla Course" that can improve intelligence, and after reading it, the situation began to change. My concentration and comprehension have improved, I no longer get sleepy in reading, and my grades have improved.
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1.The English test depends on your vocabulary and grammar. Vocabulary needs to be accumulated. If you read some books in English and can understand them without reading Chinese, then your vocabulary is no problem!
2.Grammar, the teacher will talk about it in class, you have to take notes, and there will be grammatical errors when you make mistakes, so you need to use a wrong question book.
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Do more questions and memorize more I hope mine is helpful to you.
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lay a good foundation in mathematics and brush up on more questions; English, memorize words.
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The methods of high school test scores include studying carefully, thinking seriously, and asking for advice with an open mind.
1) Read carefully.
Read the textbook thoroughly to understand the basic idea, and then read it repeatedly. When you are hungry for careful reading, you can use colored pens to preliminarily outline the key points, difficult points, and difficult problems in the textbook.
2) Think hard.
In the preview, it is necessary to use the existing knowledge, experience and relevant reference materials, think positively, ask a few more whys, and clarify the internal connection of the old knowledge and every concept, law, formula, etc. in the new content. If you have preliminary experiences and feelings, you can also make some annotations appropriately.
3) Be humble and ask for advice.
In the process of pre-makeover, some problems can not be solved even after independent thinking (including information search), you can discuss with your classmates, and if necessary, ask teachers, parents or others for advice, and try to always solve them before class, so that you can concentrate on thinking about some new problems in class.
High School Entrance Examination:
The academic test for the junior high school students, referred to as the "high school entrance examination", is a test to test whether junior high school graduates have reached the academic level of junior high school; It is a necessary condition for the issuance of a lower secondary school leaving certificate, and the subjects of the examination include all the subjects specified in the national curriculum plan in the scope of the lower secondary school proficiency examination. The exam is usually held in mid-June. The provinces and cities are not unified across the country, and they are calculated according to local time.
The junior high school academic physical education proficiency test is generally held in March and April.
From 2018 onwards, Beijing will implement the new high school entrance examination model of "3 compulsory exams + 3 elective exams + physical education", that is, language and mathematics are compulsory subjects, and other subjects are optional, and 3 subjects are selected from history, geography, ideology and morality, physics, and biology (chemistry) to take the exam. Among them, the total score of cultural courses is 540 points; The full score of the physical education test is 40 points, including 30 points for the on-site test and 10 points for the process assessment.
Your situation is indeed a poor foundation, but first of all, you have the self-confidence to believe that you can learn well, and you have to be willing to endure hardships, then more than 200 days is enough to improve your grades by one or even several grades. First of all, you need to grasp the basic points of each subject, history and politics are hard work on the back, and the understanding of the core knowledge points (especially the review syllabus, plus the teacher's lectures) can deepen your memory. Mathematics and geography should first sort out the distribution of knowledge points in these disciplines, and understand each knowledge point to t, and then do more questions, which is also the most effective method, it is best to prepare a wrong question book, write down the wrong questions in each exam, and listen carefully to the teacher's explanation, but take the time to understand all of them, analyze the reasons for making mistakes, whether the knowledge points are not well mastered or careless. >>>More
1. Familiar with teaching materials.
History belongs to the liberal arts, so the way to improve your history grades in the first year of high school is to endorse. The knowledge points in the textbooks are the basis for learning history well, especially the chronology of historical events should be memorized carefully, and the time and sequence of historical events should be memorized well, so that they can be remembered quickly and firmly. >>>More
I'm a senior in high school. Although I am not very good at math, I ranked about 300 out of more than 3,000 people in the exam, and the perfect score of 150 is generally close to 130. But I can talk about my approach. >>>More
To improve your academic performance, you must first make a study plan and arrange your time reasonably. It is not enough to have ideals, if you do not have good learning concepts and methods, then you are likely to be far from your goal. Here are 3 things you can do to improve your grades: >>>More
1. To understand more is to firmly grasp the preview, listen to lectures and review, and understand the knowledge learned at multiple levels and from multiple angles. Preview can be divided into coarse reading and intensive reading. Take a cursory look at what you're going to learn and circle the important parts under subheadings. >>>More