How do you learn chemistry in junior high school? How do you learn chemistry in junior 3?

I've just graduated from junior high school, so I'm just going to give you some experience.

Chemistry is not difficult to learn, but there are still some difficult points, such as carbon and carbon compounds, metal materials, acids and alkalis, ......You need to learn by heart and practice to keep up. If you want to preview it, read the whole book to understand what the content is, and it is not recommended to read it thoroughly now, because there will still be a lot of supplementary content in the class, which you need to combine to understand.

After the beginning of school, you need to memorize chemical equations, the periodic table, relative atomic mass, and so on. Cooperate with the exercises, but not the sea of questions tactics, you should do them one by one, and touch the class bypass. Olympiad questions can be done, unless you are going to the competition, try not to do too much, because in recent years, the Olympiad has deviated from the direction of the high school entrance examination.

Pay attention to the details, this year's high school entrance examination has been changed very strictly across the country, and points will be deducted for any less symbols.

I'm thinking about it while playing oh, it's much better than those who just say a word and copy from the Internet, despise copying, support it

Finally, I wish you the best of luck.

The knowledge of chemistry is generally trivial, and the knowledge is miscellaneous.

The chemical formula of the key point must be remembered.

In the end, it depends on your understanding

1. The basic situation (atomic weight, chemical properties) of the first 20 bits of the periodic table is very regular.

2. Several basic forms of chemical reaction (decomposition, compounding, metathesis) 3. The transformation relationship between acids, alkalis and salts (core knowledge, after mastering the junior high school chemistry, Zhaokong is considered to be completed).

4. Commonly used elemental properties.

5. Order of activity of metallic elements (potassium, calcium, sodium, magnesium, aluminum, zinc, iron, tin, lead, hydrogen, copper, mercury, silver, platinum, gold.

From high to low).

1. Listen carefully and take good notes.

Good notes are the condensation, supplementation and deepening of textbook knowledge, and the presentation and refinement of the thinking process.

Since the knowledge points of chemistry are numerous, fragmented and scattered, in addition to listening carefully and thinking positively, in addition to listening carefully and thinking positively, we should also write down the key and difficult knowledge of the teacher in our own words on the basis of understanding, so as to facilitate future review.

2. Review in a timely manner.

Revision is not just a simple review of knowledge, but considering the interconnection of old and new knowledge in one's own brain, and reorganizing it to form a new body of knowledge. Therefore, after class, it is necessary to review the content of the lecture in a timely manner, and do a good job of sorting out and summarizing the knowledge, so as to make the knowledge integrate and avoid the phenomenon of more and more chaos in learning. For example, if you learn about the bleaching properties of SO2 and chlorine water, you can compare them to find out the differences.

3. Learn to memorize.

Since there are many chemical knowledge points to memorize, it is difficult to memorize them if you rely on rote memorization, so you should learn to memorize them skillfully. The commonly used memorization methods in chemistry are: comparative method (often used for knowledge that is easily confused and interferes with each other.

The four similar concepts of isotope, allotrope, homologue, and isomer can be deepened and remembered through comparison. ), induction, song recipe memory, comprehension memory, and experimental memory.

Fourth, practice diligently. Practice is an important way to understand, digest, and consolidate classroom knowledge. However, the practice should be targeted, not a sea of tactics, and should be aimed at mastering the basic methods and the rules of problem solving. In the process of problem solving, it is necessary to pay attention to multiple solutions and inductive summarization of one problem, so as to achieve the effect of doing one problem and one category.

For example, the techniques commonly used in chemical calculation include: conservation method, relational method, extreme value method, average value method, estimation method, difference method, etc.

5. Prepare a "mistake book".

The purpose of the questions is to develop abilities and find effective ways to find your weaknesses and deficiencies. Therefore, mistakes should be corrected and recorded. When recording, you should analyze the reasons for the error and the correct solution idea in detail, and do not simply write an answer.

At the same time, it is important to go through the review frequently so that you can avoid similar mistakes in the future.

6. Pay attention to chemical experiments.

Chemistry experiments can not only cultivate students' observation, thinking, hands-on and other abilities, but also deepen their knowledge and understanding of related knowledge, so we must pay attention to chemical experiments. When doing experiments, we should ask a few more whys, think about how to do it, why we do it, and what else can be done, so as to achieve the purpose of "knowing what it is and why it is true".

In addition, in order to study chemistry well, we should pay more attention to social hot issues and life problems related to chemistry, and be good at combining book knowledge with practice.

In short, as long as the learning method is correct, I believe that students will easily learn chemistry well.

First of all, you have to read the book, you must know that the teacher who has passed the high school entrance examination only brings books in and out of the paper, if you really have studied carefully before, turn the book through the book first, and then choose a teaching assistant, and what the teaching assistant chooses depends on the personal level, but it is necessary to take the detailed answer as the standard.

Chemistry in junior high school is simple and not difficult to learn.

I just graduated this year, and I used textbooks to explain and point out in my third year of junior high school.

Chemistry, first of all, is to master the key points of knowledge, that is, concepts, and then it is easy to learn, auxiliary books and so on just to help learning, whether to buy or not depends on personal hobbies. If you use it, it's OK to buy a full solution to the textbook, and the content is very complete.

It is not difficult to learn chemistry in the third year of junior high school, the most important thing is to read more and memorize more, and practice more if possible, that is, experiments. This can be very helpful. When I was studying chemistry in junior high school, I only used one textbook, and I read it a few times and thought about it a little more.

It's very easy, first of all, to know the chemical elements! Then there's the ability to write chemical formulas, both of which are important! The rest is self-taught.