How to get grades fast in high school chemistry

1.Sort out the problems that have lost marks in each exam paper, see which problems you can solve with hard work, and master the knowledge and methods involved in these problems. Don't pursue some difficult problems that take a lot of time and don't get to the point, because there is not much time to review, and you should pay attention to the efficiency of review.

2.Pay attention to the study of the college entrance examination questions in the past three years, clarify the types of test questions and the key points of the test, and make more efforts on the knowledge and methods that have been tested in the past three years.

3.From now on, you should sort out some equations with a high probability of taking the exam, memorize the equations, and associate the problems related to the equations, such as reaction phenomena, uses, what types of problems are commonly used to solve, and so on.

4.Train the standardization of answering questions, and strive to do the questions without losing points.

5.Practice the skills of doing multiple-choice questions, such as elimination, etc.

Memorize the papers, especially the dozen sets of mock questions before the exam, memorize the answers, and there will be 50% of the original questions in the college entrance examination.

The basic concepts, formulas (not much), equations (this is more, the reaction conditions are very important) should be memorized, and some past college entrance examination questions, especially the process of calculation questions and the expression of text questions should be paid attention to.

There is not much pure theoretical knowledge of chemistry in high school, basically all of them are elemental compounds, but the properties of these elemental compounds are relatively scattered and difficult to remember, you have to memorize the chemical equations that connect one element and another element, and use equations to connect the scattered knowledge points, so that the chemical knowledge is strung into a large system network, and it is easy to remember. Some purely theoretical knowledge should be more topical. If you don't understand, you still have to ask the teacher.

Review the book first, and don't take notes. Do more questions. The key is to be systematic.

It's good to look at the books at home, and it's OK to memorize the basic equations

Take good notes: Be detailed and grasp the essentials. Some students do not have the habit of taking notes; Some students remember as much as they want; Some students only remember and don't think; None of this is good.

For the new lesson, mainly write down the teacher's syllabus, key points and the teacher's in-depth and enlightening analysis.

First, the chemistry score is not improving, a big reason is: the concept of the formula is not memorized, the method of solving the problem is not mastered, or the key knowledge is not understood.

The key to solving this problem is: don't pretend to understand. Therefore, when dealing with the knowledge points that you don't understand, you must be stalking and understand it! Find out what you missed and make up for it.

Second, do a good job of sorting out the wrong questions, and you can't get the same type of questions wrong twice. Clarify the problems that you don't know, and then internalize them into your own knowledge. In particular, it is necessary to solemnly remind students who want to improve their chemistry scores to prepare a wrong question book.

Recording previous mistakes can also remember regular knowledge, knowledge that you think is important and that you are easy to forget.

Third, according to the question types of the test papers, they should be tackled one by one.

The first is multiple-choice questions, which has always been the easiest type of question to improve, a question of 6 points, an all-round examination of our basic knowledge, relying on short-term breakthroughs can be greatly improved, although the college entrance examination questions are novel, but the examination is the knowledge points in the book.

And don't forget about elimination, which is a magic weapon for multiple-choice questions. Then there are the four big questions, for the four big questions, what we have to do is to study its question type structure, their answer mode is the same, you should start with a fixed answer mode, study each question.

In addition to the daily learning methods of chemistry, the skills of doing questions are also related to the test results of chemistry, and efficient questioning is not only to learn to review and analyze, but also to know how to summarize and summarize, so as to ensure that every time you finish the questions, you will have a harvest and can provide help for the next learning.

1. Master the steps of doing the questions and pass the three levels.

Examination level: It is necessary to see clearly in three aspects, see the chemical process mentioned in the question, see the conditions of the question, and see the problem to be solved. That's the premise.

Analysis: It is necessary to think about the chemical concepts involved in the chemical process and the chemical principles used, the relationship between the given conditions and the problems sought, whether there are hidden conditions and the content of the question.

Answer: The writing should be standardized, the terminology should be correct, and it should be in line with the topic.

2. Summarize after the question.

What is the intent of the proposition? What's so clever about the design of the title? What is the key to solving this problem?

Why? Is there a pattern to the questions, and can you draw inferences from them and apply them to a series of questions? What weaknesses did you expose in the process of doing the questions?

Could this question change its perspective and become something else?

3. Be good at accumulation.

The first thing to accumulate is the successful experience, and the second is the lesson of failure. Establish a file of wrong questions, accumulate the questions that are done wrong in the usual practice or exam, and often read and study, which is not only targeted, but also saves time, and can greatly improve learning efficiency.

1. Do more representative exercises: In the problem training, there are many students who just blindly pursue the amount of questions, want to improve their grades, and the effect of the sea of questions tactics is not obvious, so they should do more representative selected questions, so that the understanding and application ability of knowledge will be significantly improved.

2. Sort out the wrong questions: when doing the problem training, it is inevitable that there will be some mistakes, which are also a key point to improve the learning performance of chemistry.

3. Pay attention to the review of basic knowledge: review the basic knowledge of chemistry to a certain extent, and review it every once in a while, which can effectively improve the chemistry score.

How to learn chemistry in the second year of high school to improve your grades is as follows:

1) Pre-class preparation is indispensable. The so-called preview is to understand the general content and difficulty of the textbook. Pay attention to the general idea of the textbook when previewing:

What is the main substance in this section? What is the relationship between substances (e.g., physical properties, chemical reactions)?What is the basis of the key substance?

These are all pre-study that must have a certain impression.

If you encounter difficulties in the preparation and you can't solve them for a while, you should collect them and record them in a notebook to enhance the pertinence of the lecture. In addition, you can also solve these problems through the corresponding reference study books, so as to improve your self-learning ability and learn more knowledge for the preview.

2) Listen to lectures skillfully and think actively. In class, I mainly listen to the teacher's lectures, and basically follow the teacher's ideas. At the same time, we should strive to eliminate the positive use of our brains and take the initiative to think, and strive to get the best comprehensive benefits of "acceptance-thinking-understanding".

Grasp the basic concepts and grasp the main spirit. Teachers should have different "tightness" in their lectures, and students should also have different "bridge closure responses" when they listen to lectures. If you understand something in the preview, you don't have to talk too much.

For difficult points, you should listen carefully, and you can make reasonable "associations" and moderate stays during the lecture.

3) Consolidate classroom outcomes. At the end of each class, don't rush to let go of your mind all at once, but take a few minutes to quietly think about the basic content of the lesson: the main point. This may take a few minutes, but the effect cannot be underestimated.

First of all, I believe that the most important thing is to have a sense of belief in learning, a desire to learn, and a belief that you will learn well.

1. Clarify any chemical reaction, considering it from the perspective of the periodic table.

By reviewing the reaction equations (the equations that appear in the textbook chapters step by step) and thinking against the periodic table, you can draw conclusions. 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 redox and hydrolysis ionization, you who were originally unable to figure out the concept, now in front of you, the gods and horses are floating clouds, everything has become clear and clear, you will find that a small periodic table is very helpful for you to learn chemistry!

2. Secondly, the key records and special elements must be kept in mind to distinguish them.

WhatsMiner is a special element? It is the reaction can produce special gases, precipitation, color elements, as well as valence elements, combination elements (acid roots), etc., which are the test points and problem solving points of chemistry in the college entrance examination.

3. Judgment and derivation should be learned.

Inorganic chemistry focuses on judgment, judging the reaction mechanism, reaction principles, such as whether the valency is equal, whether it can participate in the reaction, and how to balance, all of which are judged and deduced based on the laws of the periodic table. The judgment of organic chemistry is first the judgment of functional groups, and then the derivation of carbon chains. Grasp the reaction characteristics of functional groups, and then according to the distribution law of carbon chain (4 key positions), you can thoroughly understand the knowledge points and win the problem.

4. Compass review method.

Based on a center, and then constantly expand the circle to the outside world. The center of inorganic chemistry is the valency, and the center of organic chemistry is the functional group.

The basic calculation of the quantity and concentration of the substance, the unit conversion formula, remember, must do more questions, and related experiments, it takes almost two weeks2Metals, non-metals and their compounds, messy knowledge points, many equations, you must pick the key points to remember, you can also go to Beijing New Oriental Middle School during the winter vacation to see the college entrance examination chemistry winter vacation course of Beijing New Oriental Middle School's general education, I wish you a smooth college entrance examination.

Chemistry requires a lot of memorization, whether it is to reflect equations, chemical experiments, chemical characteristics, etc., similar and similar, it is difficult to distinguish, so it is difficult to memorize, and it is easy to have a chaotic feeling when applying, so chemistry is not good, which is the fundamental reason.

1.First of all, it is clear that any chemical reaction, from the perspective of the periodic table, the reaction principle of chemistry is the question of whether the outermost electron shell is "saturated", and the valency of the state of matter is basically in line with the law of the periodic table.

2.Secondly, the key record, special elements, must be kept in mind to distinguish.

3.Judgment and derivation should be learned, inorganic chemistry focuses on judgment, judging the reaction mechanism, reaction principle, such as whether the valency is equal, whether it can participate in the reaction, and how to balance, all of which are judged and deduced based on the laws of the periodic table.