Why are there so few students studying junior high school physics now? 20

The reasons why many students feel that junior high school physics is difficult to learn, I think the main reason is because of these points:

1.Nowadays, the key points of knowledge required to be mastered in books are not very difficult, but the questions to be tested often have too many variations that are difficult for students to accept;

2.There are requirements for students' language skills, and many difficult problems (experimental questions, comprehensive calculation questions) require strong text comprehension and written expression skills;

3.There are requirements for students' mathematical skills, and many difficult problems (experimental problems, comprehensive calculation problems) require strong logical thinking ability and comprehensive calculation ability;

4.Physics is the best in life, serving life, requiring attention to life, more observation and more thinking;

5.It is required to memorize formulas, clarify concepts, and do exercises. . . Too much, to sum up, so it feels difficult, but:

On the basis of having a certain foundation in Chinese and mathematics, whether you usually remember the key points or memorize theories, you will try to combine them with life examples or experimental phenomena, and you will remember quickly and easily, and forget slowly, even if you forget, as long as you think of the corresponding life examples, you can also launch it immediately, try it out, I wish you progress!!

First of all, they listen to some people's statements, saying that physics is difficult, and the current people's mental capacity is too weak, as well as the guidance of the education system, the advocacy of teachers and parents...

Isn't it a school that is prescribed to learn, but it is still the main subject.

About one-third of the students generally have the phenomenon that their physics scores do not improve, and their scores are low or even lower than those of other subjects, showing a significant imbalance between disciplines.

Many of these students have good learning motivation, learning attitude, and academic performance. Why is there still a clear contrast between effect and motivation? This has to prompt us to look for reasons in terms of learning methods, especially ways of thinking and methods.

The following are some of the main misconceptions that junior high school students do not learn physics well:

1.It will not build physical scenes and image thinking indifferently.

Constructing physical scenes and visual thinking plays an extremely important role in the physics learning of junior high school students. If students do not establish a correct physical image of physical phenomena and processes under specific conditions, and do not know how to use physical images to think, it will be difficult to connect written narratives, mathematical expressions and real processes, and it will be difficult to correctly analyze, reason, judge and other logical thinking activities.

2.A one-sided understanding of physical concepts and physical formulas.

Especially in physical concepts and formulas, the causal relationship of things is always conditioned by various conditions. The understanding of conditions is a complex thinking process, and some students with weak thinking ability are difficult to carry out such thinking activities. Students who do not understand or do not understand the physical concepts are also unable to analyze and select some conditions, and do not understand the meaning of the letters in the physical formulas clearly.

3.Unable to use comparative thinking and comparative mnemonics.

Comparative thinking is one of the most common ways of thinking in junior high school physics learning, and it stands to reason that junior high school students should be able to better grasp the methods of comparative thinking for comparative reasoning, comparative analysis, comparative induction, and comparative argumentation. However, this is not the case, the survey shows that nearly half of the students are not good at understanding the essence of things through comparison in comparative thinking, some do not understand the comparability of two things at all, some do not understand the special role of comparison in solving problems, are not good at comparing the commonalities and differences of two things, and are not good at seeking differences or seeking common ground at the same time. Not good at memorizing physical concepts and formulas from the contrasts in comparison.

Contrasts in comparison leave a lasting impression in the brain and deepen understanding and memory.

4.Physics experiments will not be used to help improve learning efficiency.

Physics is a natural science based on observation and experiment, and a lot of physical knowledge is derived from careful summarization and thinking on the basis of observation and experiment. Some physical concepts are more abstract and difficult to understand, but by using the image and intuition of experiments, the essential characteristics of things can be abstracted from them, and concepts can be formed, so as to understand the concepts and complete the leap in understanding. Experiments can be used to correct the wrong ideas formed by students in their life experiences and establish correct concepts. Experiments can be used properly to get twice the result with half the effort and greatly improve the learning effect.

Hello, junior high school physics, I think junior high school physics will be relatively simple, mainly some memory things, you can memorize more, the experimental principle of each experiment is clear.

Hello, learn physics well, read the textbook carefully, the physics textbook is a teaching book that systematically expounds the content of the textbook according to the syllabus, grasp the textbook, it is also grasp the basic knowledge, and should focus on the main principles, laws and important conclusions and laws in the textbook, to remember. At the same time, we should also pay attention to learning the methods of studying problems in physics, and mastering the scientific method of learning is more important than mastering knowledge. Because it improves the thinking ability of learning.

Some people say that junior high school physics is very difficult, can't learn it, or say that junior high school physics fails, obviously I didn't understand it, I didn't understand the knowledge points, in fact, junior high school physics is very simple, you can learn it well, high school physics is the book of heaven, so junior high school physics really understands that there is a lot of room for improvement, and the progress is very fast. Now that the high school entrance examination is approaching, if it is the third year of junior high school to take the exam, the time is too urgent, and you can only review the most basic knowledge, how much can you improve, and the time is a little too late. If you are just in the third or second year of junior high school, it is ideal.

The specific way is to start with the most basic knowledge point understanding.

In the two-year junior high school physics course, there are only a few large pieces of knowledge. Optics, mechanics, electricity and other major plates. If a boy is interested in natural knowledge, it is easier to understand.

If a child fails physics for a year, he or she may be afraid of physics, feeling that he cannot learn it and is unwilling to learn it, and he is not interested. In this case, it is necessary to reduce the difficulty and make the child feel that physics is not so difficult and interesting. For example, optics that has just started with chopsticks begins to practice understanding and feeling in real life.

For example, mechanics can be experienced from the buoyancy in the swimming pool, first recognize the concept and then learn the calculation, and learn the application of knowledge points on the basis of understanding.

In addition, let him (her) have a sense of achievement, encourage a little progress in time, combine physical knowledge with the phenomena in life, and let the child have a sense of joy of progress slightly higher than others.

A leap from quantitative to qualitative change. Sometimes a type of question is done repeatedly, and you can understand it by finding out the trick, and if you practice more with the same type of question changing conditions, it is possible that self-perception will be able to pass through it at a flash of inspiration.

Physics is a very interesting subject, if you really fall in love with it, you may not be able to stop, especially junior high school physics, it is not very difficult, as long as you can learn it, if you want to learn hard, let alone pass, it is no problem to be excellent, you don't learn well or internal factors, find out what the reason, whether you don't want to learn or can't learn, it's good to prescribe the right medicine.

Many people do not grasp the skills of learning physics, they feel that physics is very difficult, most girls think that physics is difficult to learn, you must do more questions, to grasp the core of the problem, to continue to use flexibly.

I think the main reason why many students can't learn high school physics is that these students are not particularly interested in physics, and their ability in mathematics is not particularly outstanding. I want to learn physics in junior high school; First of all, we should strengthen our understanding and memory of these physical knowledge.

They probably don't have a correct way to learn, for example, they can't use all kinds of knowledge, and physics problems are relatively flexible. Of course, it is difficult, you must lay a solid foundation, and you must also do more questions.

Pay attention to drawing and reading pictures

In the junior high school physics course, students will learn about force diagrams, simple mechanical diagrams, circuit diagrams, and optical path diagrams. The first type of problem is the type of drawing, for example, making an optical path diagram, etc., to strive for the symbol standard, clear lines, and ruler and gauge drawing. The other type belongs to the recognition of images, for example, to identify the V-T image and S-T image of the moving part of the machine, as well as the crystalline and amorphous melting and solidification image of the part of the change of the state of matter, etc., it is necessary to remember the most basic image mentioned and clarify the physical meaning of each part of the image.

Attention should be paid to proper classification, and knowledge should be organized and systematized

As you learn more and more, it's easy to make mistakes and get mixed up. Therefore, you can try to help memorize and comprehend, draw the text according to the frame diagram and some instructional materials.

Sometimes, classifying concepts appropriately can simplify the content learned, highlight the key points, and have a clear context, so that it is convenient for oneself to analyze, compare, synthesize, and generalize; You can continue to systematize the concept of evacuation, constantly incorporate new concepts into the system of old concepts, and gradually establish a clear conceptual system in your mind, so that you can avoid detours in the process of learning. With this method, it is not only possible to deepen the understanding of the basics, but also to get twice the results with half the effort.

Comprehension and memory

I often see a student around me filling in the blanks and calculating questions correctly during the exam, but the multiple choice questions are a series of mistakes, what is the reason? There is no real understanding and mastery of physical concepts and laws, which is the primary task and the most important task of learning physics. What does it mean to be truly understood?

The criterion for understanding is that each concept and law can be asked "what", "how", "why", "how to use", etc., such as the concept of "buoyancy", we need to figure out "what is buoyancy?" "How to calculate buoyancy", "Why objects are subject to buoyancy", "What are the applications of buoyancy in life", etc.; For some knowledge that is close to and easily confused, it is necessary to be able to remember and say their connections and essential differences, highlight the elements, and grasp the key points. And memories based on understanding will get twice the result with half the effort and come naturally.

Taxonomy

Categorizing the concepts learned, finding out their similarities and differences, the concepts of junior high school physics can be divided into four subcategories The physical quantities of concepts are the product of several physical quantities, such as: work, heat; The concept is the ratio of several physical quantities, such as: velocity, density, pressure, power, efficiency; Conceptual properties of reactive substances, such as:

density, specific heat, combustion value, melting point, boiling point, resistivity, coefficient of friction, etc.; There is no definition of concepts, they are just descriptive, such as force, boiling point, temperature.

Contrasting method

This method can be used to learn physical quantities that reflect two mutually reversible quantities, such as: melting and solidification, vaporization and liquefaction, sublimation and condensation, useful work and extra work.

Comparative Law

For similar related concepts with the same words in the concept, the method of comparative learning can be used to find out the similarities and differences, and establish internal connections. For example, "gravity" and "pressure", "pressure and pressure", "work and power", "power and efficiency", "virtual image and real image", "magnification and enlargement", etc.

There are many students who don't understand why I was very good at physics in junior high school, but I can't do it in my first year of high school. It's not even a little money, but the results just can't go up.

In the final analysis, junior high school education is compulsory education, and both the learning content and the teacher's teaching method focus on the introductory knowledge of the subject. But when it comes to high school, it becomes a selection education, and a good university selects talents from the best of the best, so high school is the time to test one's learning ability!

Some students in high school physics can get full marks, some students only hover in seventy or eighty points, and some students fail to study.

So what are the differences between middle and high school physics?

1. Learning methods, the difference between junior high school and high school is that high school physics examines everyone's logical thinking ability, while junior high school physics focuses more on the memorization and memorization of knowledge points.

2. The difficulty of learning, high school is just of course more difficult. For example, in the study of physical motion, junior high school only requires the study of physical uniform linear motion, and high school also needs to learn uniform variable speed linear motion and curvilinear motion, etc., and the depth and breadth of knowledge have been improved.

3. Learning attitude, many students in junior high school can get more than 90 or even full marks in physics, but after seeing the final results of the first semester of high school, many people find it difficult to pass. At this time, it is easy to have the psychology of self-abandonment, which leads to getting worse and worse.

What should we do in this situation?

First of all, when the teacher explains the questions in detail, you should do it again by yourself, and if you understand high school physics≠ you will be able to do it. Only by doing the questions independently can you clearly know whether you can do the questions or not.

Second, learn to summarize. It is not only necessary to summarize the main points that the teacher has repeatedly emphasized in class, but also to summarize the types of questions that you have done and missed. Therefore, you should be good at summarizing the logic of doing questions.

Finally, everyone should remember to brush the questions ≠ improve their grades. It's better not to do it blindly, and it's wishful thinking to rely on "sea of questions tactics" to improve your grades. The most important thing is to learn how to study and practice qualitative exercises, think about the logic behind the exercises, figure out the knowledge points that the questions really examine, and what the standard steps are to solve the problems.

A loss at the end of the term does not mean anything, you must not give up on yourself because of this, since you have found the problem, you should adjust yourself in time and actively solve the problem!