How to improve my chemistry score in the third year of junior high school, my chemistry score is onl

Method:1Consider all chemical reactions from the perspective of the periodic table:

The problem of chemical reaction stuffy oak is the problem of whether the outermost electron shell is "saturated", the valency of the state of matter is basically in line with the distribution law of the periodic table, only a few polyvalency need to be copied and remembered, by reviewing the reaction equation, and thinking against the periodic table, you will find that with reference to the distribution law of the outermost electron shell and the order of the elements of the same main group, all the original unclear concepts such as redox and water flushing and voltive ionization have become clear and clear;

2.Judgment and derivation: inorganic chemistry focuses on judgment, judging the reaction mechanism and reaction principle, such as whether the valency is equal, whether it can participate in the reaction, how to match the equal, etc., which are all based on the law of the periodic table scattering and carrying the law of the periodic table, and the judgment of organic chemistry is first of all the judgment of the functional group, followed by the derivation of the carbon chain, grasping the reaction characteristics of the functional group, and then according to the distribution law of the carbon chain, you can thoroughly understand the knowledge points and solve the problem;

3.Compass review method: The compass review method is based on a center, and then constantly expand the circle, the center of inorganic chemistry is the valency, and the center of organic chemistry is the functional group.

One of the basic concepts of the new junior high school chemistry curriculum is to provide equal learning opportunities for every student, so that they can have the knowledge, skills, methods and attitudes necessary for modern life and future society, and have the necessary scientific literacy for future survival and development, and at the same time pay attention to the good development of students of different levels on the original basis. But there are still some junior high school chemistry students who do not do well, so what is the reason? Now let me introduce it to you.

1.Not suitable for the teacher's teaching style, resistant to the learning of the subject.

Unable to accept the teacher's teaching method, he lost his interest in learning in the subject, which led to low learning mood and rapid decline in grades.

2.Lack of interest in the third year of junior high school chemistry Kailu learning, learning mood.

I lost my interest in learning chemistry in the third year of junior high school, and the things I didn't understand accumulated more and more, which led to more and more incomprehension in the future, and if the vicious circle continued, my grades plummeted.

3.The concept of chemistry in the third year of junior high school is vague and cannot be applied flexibly.

The basic concepts are not thoroughly grasped, it is difficult to answer practice questions independently, and the knowledge points learned are not systematic.

4.In the third year of junior high school, the memory of chemical elements and equations is not strong.

I recommend:"A Collection of Words to Motivate Junior High School Students".

The learning method is not scientific, lacks the planning of learning, and cannot summarize and digest the knowledge points learned in time.

How to improve poor chemistry scores in junior high school? Doing the following can improve your chemistry score in junior high school:

1. The third year of chemistry mainly understands the principles first, then combines experimental phenomena and chemical equations in the third year of junior high school, diligently memorizes them, and then combines some typical exercises to strengthen understanding and memory, and then pays attention to the comparison, induction and sorting of knowledge points. In fact, the questions are quite common, grasp the equations and various calculation formulas, and memorize the properties of various substances.

2. Preview before class. The day before class, be sure to take time to consciously preview what the teacher will talk about the next day. Learn to preview first, and then listen to the class, which is a good way to learn the sedan chair.

3. Listen to every class. Listening to lectures is the core part of the learning process, and it is the main way to learn and master knowledge. Whether you can master the knowledge learned well in the classroom is the key to determining the learning effect.

If you can basically master the basic knowledge and skills you have learned in class, you will not have difficulty reviewing and doing homework after class.

4. Take good notes. In order to learn chemistry well in junior high school, note-taking is also an important part. In addition to focusing one's attention and improving the efficiency of listening to lectures, note-taking is also a great help for post-class review.

So, learn to take notes and develop a good habit of taking notes. Therefore, while listening carefully, you should also take good notes.

5. Careful observation and hands-on experiments. Through demonstrations and student experiments, learning to observe the operation and phenomenon of the teacher's demonstration experiments, doing a good job in student experiments, and taking good experimental classes are the foundation for learning chemistry in the third year of junior high school.

AnswerFirst of all, the key to learning chemistry well is to understand the principles of chemistry, and only by fully understanding the principles can we know what knowledge points are tested in the questions. Secondly, efficient study is a habit that should be maintained regardless of chemistry or other subjects, and do not be distracted while studying. Again, it is also important to preview before class and review after class.

Finally, there are many experiments in chemistry, and doing a good job of experiments is also a key.

Ask me what I think.

Well, there aren't many chemistry lab questions.

Then, if you want to improve your chemistry scores, it is very important to listen carefully in class and get twice the result with half the effort.

Preview before class, review after class to strengthen consolidation.

Ask a question, okay, thank you.

Improving your score is gradual, and you can't do it temporarily, take a good look at your usual newspaper papers** and do it repeatedly Use similar questions to help improve your score, read more, do more.

I didn't learn chemistry very well at the beginning, but after hard work, I still got up, so let's talk about how I learned it at the beginning!

Of course, it is very important to listen carefully in class, whether the content of the lesson is simple or not, listen carefully, and write down your notes word for word, whether you think the knowledge is simple or not.

Chemistry does not require a lot of understanding like physics, but you have to turn the book often, especially when you can't do your homework, you have to turn the book, don't think about asking your classmates, you can't turn it at a time, you can turn it a few times, and it's not too late to ask your classmates if you can't turn it. If you don't understand, go to the teacher, and when you ask the teacher, you should tell the teacher about your problem-solving ideas, and let the teacher help you find the shortcomings in your method.

Homework should not be limited to the teacher's assignment, and you must take the initiative to do homework outside of class. I often do problems that I don't seem to know how to do, but I think I can do them.

It is necessary to develop the habit of analyzing and summarizing, analyzing and summarizing the ideas and methods of problem solving, analyzing the difference between questions and questions, the difference between knowledge points, summarizing the methods and problem-solving skills after overcoming each problem, and developing their own learning methods.

In general, junior high school chemistry is still very simple, spend more time on your own, and study independently, and it will be effective in a few months.

First, you need to make it clear that chemistry is a liberal arts subject in science, and briefly explain: about 30-40% of the content of junior high school chemistry needs to be memorized, but it is also divided into two situations: 1

Rote memorization (e.g., the element symbol for hydrogen is h, artificially prescribed for the convenience of communication), iron and oxygen form ferric tetroxide under ignition conditions, not ferric oxide (this is an objective fact)), like this type of knowledge, just remember, there is no need to ask why; 2.

Memorize the content on the basis of understanding, for example: red phosphorus combustion experiment, insufficient amount of red phosphorus will lead to a low final oxygen volume fraction measurement result, this is something that you need to understand, not mechanical memory. Second, the remaining 60-70 percent of the content should be played on the basis of what you memorize.

If you solve the above two things, plus a moderate amount of exercises, and regular revision, you will have no problem getting a good score in the exam. Good luck! If you still have questions, you can add them.

If you have a problem, ask me for help.

I'll help you.

Chemistry is actually the liberal arts in science, only on the basis of memorization can you better understand and calculate, junior high school just learned chemistry, now I don't learn much knowledge, seize the time to memorize the previous knowledge, I suggest you refer to my learning methods at that time.

Read the last 15 minutes of each morning and memorize what you know from chemistry books. The knowledge on the book is enough, and the other reference materials are the expansion of the knowledge on the book, if you have time, you can take a look at the knowledge in the reference book to broaden your knowledge.

Chemistry knowledge is very small and fragmented, and it is recommended to link similar knowledge points to memorize, such as iron, iron oxide, ferric oxide, ferric chloride and iron hydroxide.

In spare time, you can do some chemistry problems to deepen your knowledge.

Chemistry always feels so difficult at the beginning, but it's actually so easy to get started.

It is advisable to start with definitions, especially mixtures and purities.

Purities include compounds and elementals.

From the equation reinforcement, it's just some simple formulas.

In the end, with more practice, I followed these steps to improve back then.

You don't always find chemistry hard.

Then there will be a sense of fear in the heart.

What is usually [valency] ah [chemical equation] [metal activity number sequence table] ah if you have nothing to do, just take a look at it.

Like what oxygen is positive six or negative two open the mouth to come.

This way, you don't have to turn to the book often.

Then pay more attention to [trimming].

Chemistry can't do anything.

That's what you have to do.

If you don't do chemistry, you won't score and you won't fail.

If you want to calculate, you have to practice.

The mass fraction and how to get the percentage of saline (the most out of the type) solubility will also be.

There is a question of that kind of reasoning.

I didn't understand it at first.

But if you memorize the equation.

If you can also remember what is what color, what characteristics react with acids or alkalis, then it's easy to write.

Nothing more.

Chemistry in junior high school is more liberal arts.

I'm giving you brackets, but it's all the point.。。 If you know these basics, I'll make sure you'll pass it)

Read more and memorize more, but not rote memorization, memorize to understand.

There are no skills in junior high school chemistry, no matter how stupid a person is, he keeps doing questions, and the tactics of the sea of questions are absolutely done!

Our teacher said to do more questions. Skill comes from practice.

I memorized the commonly used chemical equations, and I had to be able to memorize them very slippery. Then it's time to practice.

It's a sea of tactics, and then summarize the chemical equations to increase interest! There are some ways to get questions that you should keep in mind!

Listen carefully, memorize important equations, be able to trim, and remember what the reaction is and what is generated in the end for some important experiments.

Read more about the basics, write down what you don't understand in your notebook, look more, confidence is the most important, chemistry is very simple, I used to be a representative of chemistry class, and now I am also studying chemistry in college, chemistry is not difficult.

Most of the chemistry questions in junior high school are the accumulation of basic knowledge, and they are relatively simple. If you want to improve quickly, the main thing is to classify and do more relevant exercises in a targeted manner.

And you have to review often, learn to draw inferences, and ask teachers and students who study well if you have any questions. And don't be discouraged, believe in yourself, you can definitely learn well.

Textbooks are the most important. Combine exercises as well. Chemistry in junior high school is very simple. Memorize + practice memorization!

Find the point of the textbook and diligently memorize the equations and reactions that occur.

Chemistry in the third year of junior high school is very simple, just do more questions.

The key is to value the basics and understand what they mean.

Memorize chemical formulas and chemical equations.

Summarize your own learning methods.

Summarize the knowledge points.

Summarize the question types. Grasp the knowledge points from the question types.

Do more questions. Read more textbooks. Be sure to read the basics of the textbook. Very useful.

Question sea tactics. Increase your interest in this subject