In the third year of junior high school in Russia, how to learn chemistry well

Interest is the best way to learn, first of all, you must psychologically imply that you have no problem learning this subject well and that you are also interested;

Secondly, we should consciously pay attention to the summary and accumulation of knowledge in the usual learning process, including the physical and chemical properties of substances, and can be applied to the actual production and life of products by these apparent knowledge.

That is, by the various properties of the substance - the use of the substance, or by the use of the substance - the properties of the substance.

In addition to mastering the relationship between the properties and uses of substances, we should also pay attention to the accurate expression of language!

Interest is the best way to learn, and secondly, we should consciously pay attention to the summary and accumulation of knowledge in the usual learning process, induction, and string together knowledge to make it easy to remember (there are many fragmentary knowledge points) However, for beginners, the depth of understanding of knowledge is relatively shallow, in addition to mastering the relationship between the properties of matter and its use, it is the element symbol. Chemical formula. Chemical equations are more difficult, but the tests are a few common ones, and there is no problem in practicing through exercises!

In addition, we should also pay attention to the precision of the language!

Chemistry in the third year of junior high school is still relatively simple, and I did some simple and interesting experiments at the beginning. The purpose is to arouse the interest of students. Therefore, when the teacher is doing experiments, you should listen carefully to the teacher's explanation, although chemistry is a science subject, but there are still a lot of things to remember.

Especially equations, it may be a bit difficult to memorize for those who are new to chemical equations, but as long as you grasp some general laws. You have to be good at summarizing yourself.

In fact, chemistry is very simple. Especially chemistry in the third year of junior high school. Because the chemistry in the third year of junior high school is all inorganic chemistry.

First, to master chemical reactions is to have four basic reactions. That is, chemical reactions, decomposition reactions, displacement reactions and metathesis reactions.

Second, it is necessary to memorize the chemical and physical properties of each substance. (Note.) In particular, it is important to remember the special properties of matter. Because it's good for later inference questions).

Third: Remember the valency of each substance. Because the chemical valence of many substances is diverse.

Fourth: chemical equations are the basis for doing calculations. You need to be proficient in learning the balancing equation (it is easy to do more exercises).

Fifth: Do more exercises. And more understanding. Because chemistry is based on understanding. (Note: Acid.) Alkali. The salt chapter is very important. Because it is the focus of the high school entrance examination. )

That's my personal experience. If you can follow my method to learn chemistry. At the very least, you can score about 85 points in the exam. Hehe. Because I used to get high grades in chemistry.

How to learn chemistry well in junior high school-

Chemistry Education Network-

Junior high school, high school chemistry education network, chemistry, one of the core stations of the subject education network alliance.

Hope it helps!!

I'm always the first in chemistry in the whole school.

When junior high school source chemistry is to lay the foundation, listen carefully to the class, otherwise, you will learn chemistry in high school.

The DAO is over, I have helped N people make up for chemistry, and I found that their common problem is confusion, and the degree of confusion makes me collapse.

So, don't be lazy.

1. The periodic table is very important, but junior high school usually only memorizes the first 18 elements, remember, you must memorize him, this is the basis for your problem solving.

2. The physical properties of matter, chemical properties should be familiar and easy to mix, such as "blue flame" and "light blue flame" clearly (chemistry every time you learn a substance, you should remember a substance, don't be lazy, when learning the next substance, you should compare and remember the substance you learned last time, otherwise, if you learn too much material, you will be very confused and collapse when you do the problem).

3. It's hard to remember clearly, this, the teacher wants to teach the formula.

4, junior high school to learn simple calculations, this to practice more, practice more super simple, all those modes, but generally this kind of problem requires you to deduce first, then write equations, and then calculate, so... 5 points are also important.

5. The equation should be memorized, memorized clearly, and memorized proficiently.

6. Valency, the teacher should also teach the formula, the importance of it in junior high school is to write chemical formulas, and in high school, you should be advanced, and ask you to write equations or trims by yourself.

To sum up; Don't be lazy, be down-to-earth, back is the foundation, practice is the hard way.

I'm just in my third year of junior high school this year.

Graduates, very experienced, just in the third year of junior high school students will be relatively unfamiliar with chemistry.

I studied chemistry, and the reason why I like chemistry is because I got a perfect score in the first exam in the third year of junior high school, and then I have a strong interest in the copyright of chemistry It can be said that interest is the most critical step in learning chemistry well, of course, the same is true for others, you must be interested in everything you do to do better

There are many things that need to be memorized in chemistry, such as equations, experimental phenomena, especially those closely related to life and production are the focus of the so-called quality education Middle school, especially junior high school chemistry, is some basic things, the requirements are very shallow, and it is easy to understand, and memorization will get a good score.

In addition, learning chemistry must do more questions, some things, especially the equation backrest is difficult to remember Because chemistry does not want the kind of liberal arts, as long as you remember the stalks, and then play the following to do Chemistry requirements are very strict, a chemical equation he will have a lot of knowledge points, a mistake will be no point So a little to practice, practice makes perfect!

There is also a reference book to buy it back to the knowledge points, the precautions of each point to tell you, so that you will take a lot of detours I feel that "three points and one test" and "divergent thinking" are good Don't buy miscellaneous reference books, not only the knowledge is not precise, but there will be many mistakes, which will be misled

Long story short.

Chemistry has just started, and Du does not learn to be in charge

Hold too many complicated calculation formulas, but.

DAO must be very familiar with the public instructions in the textbook!

Chemical equation.

It is also very important, and remember that the melon is ripe.

Junior high school chemistry should be linked to reality, don't answer questions blindly, and think about why; Don't do the past and do it right by feeling, but still understand why. If you don't understand, you must ask the teacher and classmates.

If you are interested in chemistry, you must have learned it very well.

To cultivate an interest in chemistry, you can do and experience small experiments by yourself.

I'll take the chemistry test to earn points, alas. Thank you

Actually, chemistry.

Although bai is a science subject, it also has a lot to remember, and you should read more dao textbooks to learn chemistry, understand the textbooks internally, and be proficient in chemical formulas and other content to do more exercises!

Don't do exercises without reading a book.

It is also used before exams and quizzes.

You should stop doing the questions, you should review the textbook, review the wrong questions, and ask the teacher immediately if you don't understand!

In fact, chemistry in the third year of junior high school is not very difficult! Just have confidence in yourself, wait, you don't need any foundation in chemistry at all, you don't need any foundation in chemistry, you don't need to answer the application questions, just remember the formula of the elements, really.

If you want to learn chemistry well, you have to start from the basics, and now you can do one thing before others, that is, memorize the first 20 elements of the periodic table, and the corresponding formulas, then you will definitely be able to outperform!

Adjust your mentality, build confidence, determination, and perseverance!

1. Ensure that the chemical elements are not written wrong (not because of small mistakes).

2. The basic valency should be memorized clearly immediately (as if there is a mantra, anyway, keep repeating and writing silently, no matter what method you use, you have to memorize it).

3. There are not many substances in junior high school textbooks, so turn the books from scratch and write down their physical and chemical properties

4. Copy down all the chemical reaction formulas, and indicate the reaction type, conditions, and phenomena in parentheses at the back.

5. Generally, one or two experimental operation specification questions will be tested (to ensure that the most basic ones will not be deducted).

6、a.Every question in the textbook must be passed (the textbook question is the most basic).

b.Find out the test papers and practice papers that have been examined, and sort them out in order to ensure that each question passes.

If you don't understand, ask it, I think the question is very simple, but I can't do it, so I have to ask it honestly!

It's about a month away (it's different everywhere).

Ten days before the test, use 6 days, control the time to do the questions (about 20 minutes shorter than the normal test time) to do about 20 sets of comprehensive questions, after doing it, you must figure out the mistakes.

There are four days left, and I will sort out the above, read it carefully, and memorize it repeatedly. (If these tasks are done, then do two more sets of comprehensive questions to consolidate yourself, and don't do the questions the day before the exam, this is up to you).

That's how I am, it's my own experience.

I'm not afraid of making a lot of mistakes when I do the questions, and what goes wrong is just a big discovery, so I quickly correct it and figure it out, and I have the bottom in my heart, and if something similar happens in the exam, I will do it.

Anyway, as long as there is something that you can't do, it's okay to be cheeky and laughed at and talked about, you must consult others and figure it out.

Don't touch competitions or anything like that. Just lay a solid foundation.

In fact, all kinds of questions are always changing.

The above views are purely personal.

First of all, the first point is to be confident, don't be afraid of chemistry, journalists build confidence in themselves! Obama said believe in yourself, I can do it!

Secondly, establish a love for chemistry, which is a discipline based on experiments. You can try to do some experiments, some phenomena that you have learned but some you may not have seen, so you can stop and think about why? Why is this happening, and then ask the teacher for a good answer.

This way, when you find chemistry interesting and not scared. Then you are not close to success. The purpose of the journalist is not to do experiments, but to consolidate old knowledge and discover new knowledge from experiments.

It can also consolidate the essentials of using test equipment.

In addition, of course, as a science subject, you have to do the questions, but the chemistry advanced type of questions and the basic questions are equally important, what is the basic question? The basic questions are not simple questions, the so-called basic questions are the knowledge points of each lesson, and these things must be memorized. Why?

Because this kind of basic proficiency can be found out of the hidden information of the question, and at the same time, it will improve the efficiency of making suggestions, so that simple questions do not waste time, and time is spent on the later test questions and inference questions. There are also skills in collecting knowledge points, not a crash! There are three ways to do this.

1.Do a formal test.

2.Listen carefully in class, whether you understand it or not, listen first, and then recall for 10 minutes after class, if there is no and vague read the book and quickly find the teacher. Don't look for classmates.

3.To do the questions, you can do it slowly at first, but it is required to be accurate. Then increase speed and accuracy! (If you are in a new class, do what the teacher said that day, and if you enter the review stage, do what the teacher reviewed today, and plan to do what you have learned appropriately).

4.Summarize what you have learned in one week every week, summarize what you have learned in one month every month, and summarize what you have learned in one semester every semester.

In addition, test-taking also has a great impact on the score, 1Don't be overly anxious before the exam and believe in yourself. Don't expect other classmates who are doing well next to you.

2.Don't do difficult questions before the exam, you can take a look at the questions you have missed in the exam area.

3.Ask the teacher questions about what you don't know what to do or why. Don't ask classmates.

4.In the exam, don't think about whether the questions are difficult or easy, do it simply and seriously, and strive to get a full score. Difficult, don't be afraid, do a is a piece, to be clear that it is difficult for everyone to be difficult, as long as you will do 100% right, will not do it in the back when you will do it and after the inspection is completed, you can calm down when you encounter problems, read the question carefully, read it a few times and think about it again, maybe it will come out.

5.I ask for a high score for carefulness. Be serious and refuse to lose points for non-ability.

In short, it's not too late, and you will definitely succeed in the high school entrance examination after every day.

No matter how you can't improve your grades all at once, you need to learn step by step. Let's start now

1.Listen carefully in class and take notes on what the teacher explains;

2.There are many professional terms in chemistry, you should memorize more and review them often;

3.Connect textbook knowledge with daily life, practice more experiments;

4.When you learn, you have to do more questions and carefully learn the good methods of others;

Great oaks from little acorns grow.. Hope you make your wish come true!

As a person who has come over, it is recommended that you first memorize the chemical formula, which is the basic problem, even if you forget the foundation, there is a 50% chance of getting it right, and then find some relatively simple problems to do, which is to understand the problem solving process and ideas, so that you will know how to solve other difficult problems!! The high school entrance examination is coming soon, I don't recommend that you spend too much time on chemistry, you may lose a lot of money, as long as you make sure that chemistry can not lag behind!! Doing more exercises and asking more questions is the fundamental!!