How to learn chemistry well I am a junior high school student, and I have never learned chemistry we

Strengthen the memory of element symbols, chemical formulas, certain definitions:

1.Repetition is the basic method of memorization.

Repeated memorization of some chemical concepts and deepening the impression many times is the most basic method of effective memorization.

2.Understanding is a prerequisite for memorization.

The so-called understanding is to be able to not only "what" but also "why" of a certain issue. For example, knowing the structure of a substance should also understand the meaning of that structure. This makes it easy to remember the properties of the substance, and then memorize the preparation method and use of the substance.

Therefore, we should strive to memorize any problem on the basis of understanding.

3.Bringing new memories with the old.

Don't memorize the new knowledge in isolation, but organically connect the old and new knowledge to remember. For example, when learning redox reactions, it is necessary to memorize them in connection with the knowledge of valency learned earlier, which not only consolidates the old knowledge, but also deepens the understanding of the new knowledge.

4.Homophonic mnemonics.

There are some knowledge that we can memorize using the homophonic method. For example, the order of the content of the elements in the earth's crust: oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium, hydrogen can be programmed into homonyms like this:

An aunt (silicon) surnamed Yang (oxygen) bought a (aluminum) (iron) alloy pot lid (calcium), took (sodium) home (potassium), beautiful (magnesium) and light (hydrogen).

5.Song recipe memorization.

The knowledge that must be memorized is very easy to remember if it can be condensed into a song recipe and catchy. For example, the valency of the elements can be compiled: "monovalent potassium, sodium, hydrochloride, silver, divalent oxygen, calcium, barium, magnesium, zinc, aluminum, trisilicon, tetrasulfur, 246, 35 valence, nitrogen and phosphorus, iron, 23, carbon, 24, copper, mercury, 12 and 2 valent up.

Another example is the key points of the experiment on the reduction of copper oxide by hydrogen: first pass on hydrogen, then light the lamp, stop heating and then stop hydrogen.

Chemistry in junior high school is just the beginning, and if the teacher can't do it, you'll have a hard time on your own. The teacher is not very good at speaking, and it is recommended that you put some things hard in the early stage, such as molecular formulas, etc., and you can follow the teacher's lecture in the later stage. That's how I came here, I didn't know anything at the beginning of junior high school, and I always got perfect marks until then.

Chemistry in the college entrance examination is a perfect score. In fact, this is nothing, and when you finish learning, you will know that junior high school chemistry is just scratching the surface. It is recommended that you memorize some molecular formulas and their names for a while.

Hope it helps.

There are many reasons why junior high school chemistry may make it difficult and challenging for students to do it, but here are some of the most common ones:

Abstract Concepts: Chemistry involves knowing and weighing abstract concepts and mental models, which may be difficult for some students to understand.

Lack of interest: Chemistry can be boring and unattractive for some students, resulting in a low interest in learning.

Improper learning methods: Chemistry requires continuous practical application, and some students may not find their own learning methods and skills, resulting in inefficiency.

1. The basic knowledge is not solid, the teacher should ask the teacher questions after the lecture, divergent thinking, ask the teacher in time if he does not understand the manuscript, and digest what is said in class. 2. There are few flip books, and the learning of the bond spine of chemistry requires the ability to turn the book diligently to find the page numbers of different knowledge points during the feast and disturbance process, and copy the information obtained from the analysis of the problem on the corresponding page of the corresponding book. 3. The accumulation is small, the teacher should memorize the equation before taking the equation exam, accumulate more new knowledge, and expand the scope of knowledge.

4. There are fewer brushing questions, more questions have been seen, multiple-choice questions have a sense of question, and fixed answer sentences can be used for big questions. 5. There is no systematic knowledge system, no string of all knowledge, and no clear connection between various knowledge points.

I think chemistry in junior high school is still very simple, and there are very few situations that need to be adapted, so spend more time on memorizing the elements and reaction formulas, and you will find that it is actually very simple.

Chemistry in junior high school is still very simple, the main thing is to memorize formulas, and if you don't know something, ask the teacher for advice in time.

I think the first thing to do is to memorize a lot of these key knowledge points, such as the periodic table and chemical trimming.

I think comprehension and memorization are the best way to learn, and it is easiest to remember only after understanding well.

Junior high school chemistry is still relatively simple, remember the most basic and respectful equations, trim methods, and a sales of some reaction phenomena and products, with your smart brain, even rote memorization can be easily done!

Chemistry is very accompaniment to the back of many things to understand, and it is not a dead remember to disturb the sparrow, if you are in Wuxi, I can give you counseling, I am teaching this, slow early hehe.

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