I m in the third year of junior high school, and I feel very nervous about studying. Physical chemis

First of all, we must put down some difficult and deceitful questions, focus on reviewing the basic content in the textbook according to the exam syllabus, don't do a lot of questions, pay attention to the basics, there are more chemical memorizations, and physics should summarize more, get the test questions thoroughly, and communicate more with the teacher, anyway, if you are going to graduate, you don't have to be afraid of him, so if you don't understand, you have to ask, it is a normal thing to be nervous before the exam, don't worry too much. Confidence is the most important thing. Come on, dear, I wish you a good result

What about physics, the most important thing is to understand, and the second is the formula. And chemistry is completely dependent on memorization and memorization, don't always think that you can't do it! Believe in yourself, give yourself a hint, and study hard!

Don't worry, you can find a simple chemistry or physics problem every day, it is not too difficult, but you must understand, accumulate over time, and hope to gain something. Get into your dream school.

Tips: First memorize the formulas and important concepts that should be memorized: such as chemical reactions, the phenomena and causes of reactions, some concepts of physics should be clarified, and the experimental steps should be memorized.

There are more weak link questions for selective, and review the wrong questions, junior high school physical chemistry is mainly shallow for students to get involved, so remember the main. The questions should focus on doing more, being careful, asking more questions, and returning to the textbook to summarize the root meaning of the textbook of the topic! Come on.

Junior high school is actually very simple, don't think too complicated, you must listen carefully in class, you will be good in the exam, there are no more problems, look at the tutorial book, summarize it yourself, and make up the class if it really doesn't work.

Reading books, looking at the exam questions of the past years, mainly to see the knowledge points of the real questions, the actual test every year is so much, many knowledge points are tested every year, it depends on whether you can master it.

Ann la Ann La, physics back formulas, chemistry back equations, this is the only way out of the quick way...

Relax and learn! ~~

Say to yourself every day, I can do it! ~~

Sign up for a cram school, and since you realize that you are tired, you have to make up for it quickly.

It's good to learn a little bit by heart, it won't be too difficult.

Just those few formulas, memorize it and you'll be fine.

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.

Learn from others, learn from classmates, learn from the people around you, see how others learn, often communicate with them "academically", teach and learn from each other, improve together, and never be self-righteous. The interactive teaching platform teaches you to pay attention to the knowledge structure and systematically master the knowledge structure.

For students who are new to physics, it is especially important to pay attention to the careful observation of phenomena. Only in this way can the understanding of what has been learned be deepened. For example, when the teacher talks about references, many students will think:

Those who sit on the train will observe that everything on both sides of the railway is rushing towards the rear of the train. This vivid'Examples give us a visual idea of the relativity of motion. In the process of learning physics knowledge, we should also attach importance to experiments and combine the learned physics knowledge with the phenomena in daily life and production.

During the study, you should carefully observe the teacher's demonstration experiments and complete the hands-on experiments independently. In addition, you can design your own experiments.

Students who are physically and mentally in an active state can take the initiative to preview before class, find their own learning difficulties, concentrate in class, and have a high-speed brain, and consider some questions raised by the teacher, take the initiative to speak, and do not wait for the teacher to "indoctricate". Be good at asking questions and expressing yourself in your studies'At the same time, learn to sort out and reintegrate knowledge, organize and systematize messy knowledge, and turn it into your own thing.

Be sure to complete the assignment independently. It is necessary to do some questions independently (meaning not relying on others) and with quality and quantity. There should be a certain number of questions, not too few, but also a certain quality, that is, a certain degree of difficulty.

Anyone who learns mathematics, physics and chemistry will not be able to learn well without going through this level. Solving problems independently, practice makes perfect, this is the only way for any beginner to succeed.