Freshman high school students have no problem with mathematics, science and liberal arts, but chemis

Hehe, let me start by saying that I'm in my third year of high school, and I'm very good at chemistry, usually more than 90 points.

I don't know what you lose a lot of points in chemistry, so let's talk about it. Let's talk about the accumulation of basic knowledge first, what the teacher talks about in class, after listening, you should think first: Do I know this?

If you know, let it go. I don't know, write it down right away. In this way, the notes are refined and few, and every time you read them, you will be rewarded.

In fact, chemistry emphasizes the integration and association of memory and knowledge, and if you study more, understand, dredge and connect all knowledge points, chemistry will gradually get better. In the case of exams, the skill of multiple-choice questions is to carefully scrutinize each option (in the words of our teacher, "it is difficult to choose a single choice or choose the wrong one!"). The next big problem is nothing more than the trouble of inference and calculation, which depends on the usual ability to connect knowledge, and your other subjects are not a problem, I believe this ability is not a problem.

In addition, it is very important to have a good scratch paper for the exam (good as the printer paper, buy more) to greatly speed up the speed of your problem solving.

Generally speaking, the first thing in chemistry is to learn solidly, which is sure to be able to grasp the class. Then you have to be careful, small details such as arrows and reaction conditions, if you don't pay attention, you may lose more than ten or twenty points. In addition, since you are now a freshman in high school, it is very unrecommended to ask questions and tactics, if the teacher assigns a lot and is unreasonable, it is recommended to flexibly subtract some tasks that you think are unnecessary (don't be afraid of the teacher's scolding, say the reason why you don't do it, he won't blame you) At this stage, the main thing is to lay a solid foundation, appropriately see different question types, and exercise your thinking.

Hope this helps you and good luck!

Since you are good at chemistry in junior high school, there is no big problem in high school as long as you study hard. Pay attention to concentration in class, not to take notes on what the teacher said in class, but to follow the teacher's solution ideas to think about why this is happening. Supplementing class notes in a timely manner after class is better than memorizing all of them in class.

Of course, some of these are facts, and the phenomena that exist are the inherent properties of matter, which must be remembered if they are not in the book.

Study hard and wish you success in your studies.

The content of the first year of high school is very simple, as long as you remember more, ask more questions, you can borrow notes from your classmates, communicate with your classmates more, the second year of high school is much more difficult, a lot of you have to rely on your own understanding, the teacher is not easy to teach, a lot of hard work, the first year of high school is really simple, and the balance of the second year of high school is dizzy! I'm just making up for the balance.

Good luck!

Studying chemistry. Conscience is the equation, and then there are some properties of matter. The most popular thing in the equation is equilibrium, and the inference of the matter that is generated.

If you do more questions, you can naturally find a way to deal with it. If you want me to say how, I don't know what to say. It can only be understood but not spoken, hehe

Mathematics, physics, and chemistry are generally considered among students to be among the most difficult or frightening subjects. Here are the possible reasons for this phenomenon.

1.Abstract and incomprehensible.

Mathematics, physics, and chemistry are often considered highly abstract and theoretical subjects that require students to master complex concepts and formulas. For some students, it may be difficult for them to understand these concepts, leading them to think that these subjects are very difficult.

2.The subject content requires purely logical thinking.

Mathematics, physics, and chemistry often require purely logical thinking skills, and for some students, this mode of thinking may not be very intuitive, making it difficult to grasp knowledge of these subjects.

3.Lack of practical experience.

Mathematics, physics, and chemistry often require the application of theory to solve practical problems. However, for some students, they lack practical experience to apply theory to practical problems. This can lead to confusion and frustration leading them to think that these subjects are very difficult to master.

If you are a student and find yourself feeling scared or difficult about certain subjects, here are some suggestions:

1.Establish the basics.

For subjects such as mathematics, physics, and chemistry, basic knowledge is a prerequisite for learning. Therefore, it is recommended that students start from scratch at the beginning of their studies and gradually develop the basic knowledge according to their own abilities.

2.Focus on practical experience.

These subjects involve the application of theory to practical problems. Therefore, the focus on practical experience helps students to acquire scientific knowledge. Students can try to actively ask questions from the teacher in class and try to complete some practical investigations.

3.Find the right way to learn.

Different subjects require different approaches to learning. Kima students can learn in a variety of ways, for example, by seeking better learning resources (e.g., textbooks, **), communicating with classmates who are better at these subjects, or by consulting teachers.

4.Improve your mindset.

For subjects such as mathematics, physics, and chemistry, students should have a positive attitude towards learning. They should recognize that these subjects require time and effort, but the rewards are also considerable when mastered. Therefore, students should maintain a positive attitude as much as possible, plan well for their studies, and keep working hard.

Finally, it should be emphasized that there are some subjects that can be difficult for any student to master. However, by adopting the right approach to learning and maintaining a positive attitude, a lot of students can still succeed in these subjects.

No, the exam is very simple, and you can do the questions of previous years.

The school will send out a few syllabuses and exercises, and those who can do it will be absolutely OK to take the exam, which is what our class does, almost all three subjects with all A's.

Don't worry, the exams are all copied, I'm also studying literature, I don't know how to take the science exam, it's all in this school, the teacher knows, and he generally copies him with one eye and one eye closed, and it's good not to be seen by the inspection

Generally, the invigilation will not be very strict, and you can make up the exam, if you decide to go to college, don't put too much thought, because it is easy to forget in the future, and delay the time, it depends on yourself.

If there's another year, then anything is possible.

First of all, we have to consolidate the foundation, and if the foundation is not solid, it is useless to say anything else.

The easiest way to consolidate your foundations:

1.Read the book, look at the bold font or the key points, and memorize it. Memorize until you know which page this text is on.

2.Do the questions, but it must be targeted, first of all, you have to do the basic questions, you look for the kind of tutorial book for the first and second years of high school, and do the questions about the understanding of concepts and fill in the blanks to consolidate the foundation.

If you feel that the foundation has been consolidated, find out the previous test paper and do it again. Examination papers are the best way to test your knowledge. When you can't remember it, mark it with a red pen, mark it with a red pen, mark it with a blue pen, and if you can't, draw a circle with a black pen.

When you're done, try to recall what you can't remember, and if you really can't remember, read a book. The same is true for those who are not sure.

Then do it again and find out what you really don't know and what you are not sure about. Then ask the teacher.

3.Ask the teacher, be sure to ask, ask more, ask in detail. The basic concepts must be thoroughly understood, and this is the only thing you can rely on during the exam**! After the exam, you have to see what you are wrong with and make a summary.

4.Summarize and summarize, it is recommended to prepare a book at ordinary times, summarize the experiments, concepts, and skills, and read them as you flip. In particular, some tips that help speed up the work can be summed up in one sentence and read at any time.

The summary of the experiment needs to know the principle of the experiment, the matters to be paid attention to, the necessary operation, the purpose of the experiment, and to know these in order to master the experiment (for example, why can't you stir the beaker with a glass rod to make ferrous oxide?). Because it will be mixed with oxygen, which will cause the iron to be over-oxidized).

5.Mentality, look at it with a normal heart, and believe in yourself. If you work hard, you can break through yourself.

There is no shortcut to success, and taking it slowly is the best shortcut. Don't dwell on the momentary failure, but learn the lesson and don't make the same mistake next time. And don't be complacent about momentary achievements, because you still have a long way to go.

I wish you good results in the college entrance examination!

Although I have always disapproved of the tactics of the sea of questions, but, in order to cope with the exam, you can indeed use it, you go to find some real questions and some mock questions of the college entrance examination (this question will not be too much), and then find one or two review materials, pay attention to be sure to find the kind of question that is suitable for the amount of questions and the solution of the question is very detailed, and then start training, insist on a certain amount of training every day, do not ask too much, but require each question to look carefully at the solution, unless you are sure that you fully understand the knowledge covered in it, Then you should find some knowledge in these answers that you don't understand or don't know, and then you can find the corresponding knowledge points from the textbook to understand and supplement some aspects that you don't understand!

It doesn't matter, chemistry is still very systematic. You are learning the later knowledge, and the previous knowledge must be mastered, depending on how you look at it. You can see it as learning to review the previous one.

If you want to review in the third year of high school, you should listen well at this time, take good notes, and ask teachers or classmates if you don't understand. If you can't do a problem, you can ask your classmates to tell you the whole problem-solving process and draw inferences. Generally, a chemistry topic involves a lot of knowledge points, at this time you must let your classmates make you understand each knowledge point, after a long time your problem-solving thinking will come out, in fact, one year is enough, as long as you are willing to work hard, I studied chemistry in college, and chemistry was not very good in my freshman year of high school, or I learned it, come on!

Believe in yourself.

What kind of chemistry do you add to 30 points?

The way is to study carefully and read books carefully.

Speechless, it's pretty bad, it's okay, you can learn it well in a year, do a good job of preview and review, just remember more every day.

Personal insights from years of study: Whether it is science or liberal arts, they all share the same learning method: thinking, living and applying.

However, there are also differences, the theories and laws of the liberal arts belong to "probabilistic theories and laws", that is, their accuracy is based on probability, and more than 90% of the laws that can be met by facts can be regarded as correct laws; The theories and laws of science are precise laws, that is, either right or wrong. Specific to the learning methods of mathematics, physics and chemistry, there are also slight differences: mathematics and physics are basically the same, both emphasize logical reasoning, then the starting point of reasoning is, of course, the concepts and theorems written in the book, and the explanation of any phenomenon (such as doing problems) cannot be taken for granted, and must be considered from the concept theorem.

In the description and formulas of conceptual theorems, many variables will appear in other concepts and theorems, which is the intrinsic connection between mathematics and physics, which allows you to link the knowledge of each chapter together. To understand the specific formula, you can transform the variables on both sides of the equation equal sign, and analyze it with the control variable method, that is, keep a few quantities unchanged, change a few of them, and you can find the relationship between the variables, which is the starting point of physics and mathematics analysis, and also the basis of their learning methods, no matter how complex the exercises you encounter, they are all tests your understanding of concepts and formulas (theorems), and there are only a few variables in formulas and theorems. When you are proficient in memorizing the equation that any variable can be represented by other variables, solving the problem is a piece of cake. Chemistry is known as the liberal arts in science, there are too many things that need to be memorized, it is very important to memorize accurately, just read more and memorize more, and the rest is to test your way of thinking:

It's the process by which you think about a problem, or the process of analyzing a problem. In the study of science, we must remember to take it for granted, and we must have a clear mind and clear thinking--- that is, we must be rational and evidence-based in analyzing problems, that is, starting from concepts, formulas, and theorems.

Mathematics and physics attach importance to derivation and calculation, and the amount of memory is small, and skills are emphasized.

Chemistry and biology in high school are more liberal arts, and there are a lot of things to remember and it is very confusing.

There are two key points in learning high school chemistry: what should be memorized must be memorized; If you don't understand something, remember it first.

Chemistry can be written down, mathematics and physics are of course difficult, the difficulty is that there are many changes, a knowledge point can produce multiple questions, this is relatively difficult is actually not difficult, it depends on how you understand, hehe,

Chemistry, known as a minor liberal arts, focuses more on memorization, while mathematics and physics focus on understanding.

1. Before the college entrance examination, the main knowledge of the four textbooks must be carefully reviewed, and there can be no problems with the basic knowledge.

2. For the study of specific substances, we must grasp the three aspects of genus, structure and characteristics, and inorganic substances must grasp the position of the elements in the periodic table - structure - the ability to gain and lose electrons (oxidation and reduction), so as to understand the general properties, and then analyze the characteristics, such as the bleaching of SO2, bleaching characteristics, how to use this unstable bleaching characteristics to distinguish between SO2 and CO2, or SO2 and CL2, and learn to compare and analyze in learning, be good at thinking and summarizing, and learn to speculate at the same time. Instead of rote memorization. It is very important to grasp the nature of functional groups because of the deep understanding of the relationship between structure and properties of organic matter, and all reactions occur on functional groups.

3. For the study of reaction theory, we must focus on macro phenomena, micro explanations (effective collision probability models), conclusions, do not memorize conclusions, qualitative understanding, quantitative analysis, and analyze problems to think of various possibilities as much as possible, and improve rigor.

4. Pay more attention to life phenomena and use the learned chemical knowledge to explain the things around you as much as possible, which is the highest level of practice, which is the most helpful for learning, and pay attention everywhere. For example, why hot water is cleaner when washing dishes, why the air feels very fresh after thunder and rain, and why air pollution is difficult to control.

5. Prompt some error-prone questions, ion concentration comparison to distinguish who dominates the degree of hydrolysis and ionization, and pay attention to whether hydrolysis or ionization, it is weak. The electrons in the galvanic cell must be used as the negative electrode, and the electrons go along the wire, do work, form an external circuit, and then gather to the positive electrode to attract the positive charge in the solution, and the positive electrode undergoes a reduction reaction; The positive plate of the battery in the electrolytic cell wants to rob the electrons of the anode substance, so the anode loses electrons due to oxidation reaction, and the negative electrode of the power supply wants the cathode plate to transport the electrons snatched over, and attracts the positive charge in the solution to obtain electrons in the cathode plate, then the anode discharge order is reversed by the metal activity order table, and the deadline is h; The order of cathode placement is s, i, br cl oh; The reaction rate should be balanced only when the positive and negative sides are equal, so when different substances express the rate, the rate may not be the data. Neutralizing heat: a strict definition of the heat of combustion; The influence of pressure and temperature on the reaction rate and the influence of equilibrium movement should be distinguished, and the rate and equilibrium movement are two different things; Wait a minute...

6. Don't be discouraged, calmly analyze the places where the past mistakes are concentrated, the more you go to the end, the more you have to calm down, and finally you must pay attention to the content of the textbook, the basic knowledge is very important, and strive to lose less points in multiple choice questions, and the total score will not be too low. . .

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