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After teaching science in junior high school for 5 years, there is one question that puzzles me. That is, students always find it difficult to learn chemistry. Compared to physics, chemistry is a very interesting and practical course.
In order to learn chemistry well in a short period of time, it is necessary to master the scientific method in addition to paying attention. Darwin said:"The most valuable knowledge is the knowledge about the method.
Learn to observe Chemistry is an experiment-based science. Developing good observation habits and scientific observation methods is the first condition for learning chemistry well.
1. The order of observation experiments is:"Before the reaction - during the reaction - after the reaction".
First of all, it is necessary to observe the original properties of the substance; secondly, it is necessary to observe what phenomena are produced by the change of matter;
Third, it is necessary to observe what new substances are formed after the change.
2. Describe the method of the experiment:
Describe the operation of the experiment, describe the phenomenon of the experiment, and describe the conclusion of the experiment.
3. Hands-on experiments.
As the saying goes:"It is better to see than to hear, and it is not good to see it. "It's much faster and firmer to do it through hands-on experiments than just watching the teacher do it and memorizing it yourself.
Learning to memorize Memory is the most basic way to learn chemistry well. Compared with mathematics and physics, memory is evident in the study of chemistry.
is especially important.
Use a variety of memorization methods. Element symbols, valencies, etc. are to be mechanically memorized. Concepts, properties, etc., should be remembered on the basis of understanding.
Look for a memorization method that suits your characteristics. Such as formulas, rhymes, etc.
Good at summarizing in a timely manner.
Reviewing, summarizing, inducting, and forming a knowledge network system are the prerequisites and guarantees for the application of knowledge. After each lesson.
A brief summary should be made in a timely manner. When reviewing each unit, it is necessary to summarize and sort out the knowledge before and after, find out the similarities and differences, put forward the regularity, and form a knowledge network. During the mid-term and final review, we should also constantly summarize the learning methods, and put forward the points to pay attention to and the direction of future efforts.
Fourth, be studious and ask more questions.
1. If you don't understand, you have to ask.
Some students don't know and don't ask. This is a big taboo in learning. If you don't understand in learning, you should ask questions and solve the problem in time. It is conducive to the next step of learning.
Be good at asking yourself Asking questions is the first step in science. In the process of learning, you should always consciously ask more questions"What it is"and ask a few more"Why", so that it is conducive to forcing yourself to think.
Fifth, learn targeted training.
Practice is a form of applied knowledge, and it is only through practice that knowledge can be consolidated, mastered, and had.
Effectively test your own shortcomings in learning and make yourself achieve better results. But the exercises must be targeted, less and more precise.
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Chemistry as a natural science subject appears in the standard curriculum of junior high school. Studying such subjects requires not only interest, but also understanding. The highest level of doing questions is nothing more than questions that are not wrong, but the highest level of learning is to be good at analyzing, classifying, and summarizing.
This classmate, the problem you encountered is also something that I have encountered when I have just entered Gaoyi.
Chemistry can be difficult to get started, so sometimes I feel like I'm trying to memorize something, but I'm not doing it right. This lasts for one to two months. At this stage, we must insist, for example, the problem of balancing of chemical equations, it must be very rusty to use at the beginning, which requires us to practice more, recall the method of finding the least common multiple mentioned in mathematics before, you will understand that the chemical equation is just a complex process of finding the least common multiple.
There are always classic question types that have remained the same for many years, and all the questions will never exceed the requirements of the syllabus. This requires us to memorize all the definitions given in the book and experience them with our hearts, and sometimes although we feel that we are already familiar with things, we will still be vague when we really take the test, and we don't even know how to use them. That's what we're not knowing.
Remember one thing: the books are classics, and there is absolutely no nonsense in the textbooks.
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Remember the three major conservations: conservation of mass, conservation of materials, and conservation of electrons.
Remember the physicochemical properties of matter.
Memorize chemical equations.
Chemistry is pretty simple, really.
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High school is different from junior high school, and high school has a lot of knowledge points, and it also extends a lot. Can't let up. I was pretty good at math in high school.
Always one hundred and thirty-five or more. Most of them are careless points lost. My approach is also very simple.
Hope it helps.
First of all, I always know the concept of the book very well and understand it well. For example, the first year of high school is mainly a function, and a function is the foundation. Function concepts, parity, elementary functions, etc.
Second, I attach great importance to the example questions in the book and always study them. The example problems show the basic application methods and problem-solving thinking. The main digging depends on the thinking and method, if you have the conditions, you can learn with a tutorial class, expand your own learning thinking, I am over this way without a nucleus, you can refer to it.
Third, do the exercises. The practice of math problems is indispensable. But don't do all the questions, you will do a lot of useless work. The exercises in the book, the types of questions in the college entrance examination, etc., are generally very standardized. From easy to difficult.
Fourth, learn to think independently. Don't ask anyone about everything. Don't always look at the answer to form a dependency. It's important to think more and have your own thinking system. It also exercises the brain.
Fifth, there will be no practice there.
Special exercises are carried out for the type of questions, knowledge points, and places that will not be conducted. Now there's a word for deliberate practice. That's what I'm talking about.
- Hope you can be of some help!
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Chemistry is an important subject in high school, and there are many knowledge points of chemistry, especially the content of chemistry in the second year of high school. So, what should I do if I have a poor chemistry score in my sophomore year of high school? Let's take a look with me below!
1 How to improve your sophomore chemistry scores1. Make sure you don't desert during class
When we study in class, we must not desert, and try to try the content of the whole class according to the teacher's ideas, because the content of the teacher in class is the focus, and we will do a lot of practice questions in the learning process, so that it is not as good as the content of the teacher to understand and understand well, so that our grades can improve faster.
2. Strive to have more questions in class
This method can make us concentrate our thoughts in class, and we can fully understand the problems that we have not figured out, especially when we are reviewing, this method of learning is particularly helpful, we should be active in class, and it can also enhance our self-confidence. The most important thing is that it can improve our chemistry scores.
Third, we must master the chemical equation
The most important thing in chemistry is the chemical equation, when we learn chemistry, we should pay special attention to the chemical equation, which is the key point to solve all chemical problems, so we must firmly grasp this point in the process of learning chemistry, that is, our chemical equation, we must be proficient.
Fourth, we should pay attention to chemical experiments
The simple way of chemical equations is that we need to understand, which requires us to do experiments, we can't fully understand these contents just by relying on the content of the teacher, we have to do chemical experiments, master these knowledge, and we can remember it deeply through experiments.
1.The first is to listen to lectures. No matter what you study, you can't leave the class, follow the pace of the teacher, the knowledge can be remembered, maybe some students feel that the teacher is not good enough, nevertheless, the class will also be of great help to your learning.
2.Think positively. Sometimes, the teacher may not be able to talk about all the knowledge, this is what you need to think, you can think about what the teacher has said, you can even try to speculate what the teacher is going to say, of course, provided that you do not fall behind important knowledge points because of thinking.
3.Positive questions. In class, the teacher will ask questions, students need to ask, at this time, as long as you have the answer in your heart, you must say it, don't be afraid of mistakes, no matter if you answer wrongly, you will remember it deeply.
4.Think about your notes and review your lessons. There are certain things in class that are easy to forget, so you need to take notes so that you can review them after class and not forget.
I recommend: How to improve your chemistry score quickly in the second year of high school
5.Do the questions. There are many memorable things in chemistry, maybe some students don't worry, but for students who don't like to memorize, this is a trouble, so in order to remember clearly, not easy to forget, do more questions, and memorize slowly in the process of doing problems.
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