Senior 3 Chemistry Review Really Talented .

I graduated in 2011, and I have always loved chemistry, and I am really interested in being the best teacher.

As long as you work hard to learn and memorize anything, you will definitely gain it, and chemistry is not a big percentage, but it is a very good subject, and if you are hovering in the seventy or eighty percent, you will definitely not be able to go up, and this is a big problem.

Chemistry is actually very easy to learn, and a lot of memory in it has tricks, and the knowledge is the same, you first have to learn every basic knowledge point, and then string them together, and review them systematically as a whole, which is the so-called review of the late stage of the review.

When it comes to inference, if you don't do it well, the most important thing you should check is your foundation, and inference is the most basic test, for example, what color can you reflect, can you reflect what substances, and when it comes to a relative molecular weight, can you reflect what substances correspond to that molecular weight at once? These are very tests of your proficiency in knowledge and mastery of the basics, only by mastering the basics, proficient in knowledge, in order to deal with the later stage of the big synthesis, comprehensive inference, a question may be combined with the scattered knowledge of three books in the past three years, if one of them is not mastered well, then this inference problem you may be stuck.

I used to do inference questions when I was often stuck, at that time, any similar problem, I would only get stuck once, it is very important to make my own summary, many skills are summarized from the sea of questions, the teacher said that the classmates will not be clearer than their own summarization, in short, to do more questions, now always say not to engage in the sea of questions tactics, but only the sea of questions tactics is the most effective way to let us really master the knowledge.

After I graduated, I majored in chemistry Since college, I still feel that the days of high school are very precious Ups and downs Only I will understand the preciousness and nostalgia in the meantime I hope you can find a true self in the last 6 months Don't slack off In the last days, your grades will be greatly improved As long as you work hard, you can cross a higher threshold I won't say more, I believe your teachers say more I wish you progress in your grades If you don't understand anything, you can find me

In fact, chemistry is not so difficult, the most important thing is that you have your own induction and method. You first read the book, you roughly know where the knowledge points are, and then you start to generalize, diverge from a knowledge point, you write all the relevant knowledge again, forget it, and if you don't know it, you will find a book, like drawing a tree diagram and separating it step by step. In the process, you will become more familiar with what you have learned.

When you have written most of the knowledge, you start to write it yourself, you take out the exercise book to do, and if you do some wrong questions, start from this question, and write the relevant knowledge again like you wrote a treemap before, so as to deepen your memory. At that time, I was not bad at chemistry, and when I was basically reviewing, I could draw tree drawings for each question by myself, and I didn't need to look for books, so I could think very openly. In this way, because your connection ability is good, the natural inference question is not a problem.

Seize the winter break and work hard

I'm also in the third year of high school this year, and I think it's really not good to go through the notes of the first and second years of high school, it will be helpful, the foundation is the most important, and I personally think that the review of the third year of high school is not as detailed as before, and it is not so easy to remember. There is also classification, there are the same type of questions on each test paper, and there are only a few tests, so it is easy to be familiar with the problem solving ideas.

1. Efficient review, we must learn to sort out our own learning situation, based on textbooks, combined with our own notes, test papers, weak links, existing problems, etc., reasonably allocate time, and target and specific to overcome and implement little by little. If you don't grasp the content well, spend more time, and when you review, you should be systematic, don't go east and west, and end up reviewing nothing.

2. You can learn to master the ability of speed reading and memorization, and improve the efficiency of learning and review. Speed reading and memorization is an efficient learning and review method, and its training principle is to activate the potential of "brain and eye" and cultivate the formation of eye-brain direct reflection reading and learning mode. For the practice of speed reading memory, see "Elite Special Whole Brain Speed Reading Memory Training", practice with software, more than an hour a day, a month's time, you can double the reading speed, memory, comprehension, etc., and finally improve the efficiency of learning and review, and achieve good results.

If your reading and learning efficiency is low, you can practice it well.

3. Learn to integrate knowledge points. Classify the information you need to learn and the knowledge you need to master, and make it into a mind map or knowledge point card, which will make your brain and thinking clear and easy to remember, review, and master. At the same time, learn to connect new knowledge with what you have already learned, and constantly integrate and improve your knowledge system.

This promotes understanding and strengthens memory.

4. When doing problems, you should learn to reflect, classify, and sort out the corresponding solution ideas. When you encounter the wrong questions (carelessly do it wrong, you can't do it), it is best to collect these wrong questions, and each subject has an independent set of mistakes (the set of mistakes should be classified), and when we review before the exam, they are the key review objects to ensure that there are no more mistakes and points on the same questions.

I am also in my third year of high school, and I always heard about the tactics of the sea of questions before my third year of high school, but I still think that the most important thing is that we must concentrate 100% attention in class, because we have loopholes in our previous learning, and the third year of high school is to make up for the loopholes. We need to systematize our exercises and knowledge, and only after the system will know that it is a loophole, so as not to do the questions blindly. Regarding the specific knowledge points, different regions may have different emphasis, I don't know which region you are a candidate, and I can't say.

I hope we can work together and be worthy of ourselves.

The landlord has not established a department of knowledge in chemistry.

I've been teaching high school chemistry for ten years, and there are many times for DAO students like the landlord, because your knowledge and answers are scattered.

The recommendations are as follows:1Look at matter from a microscopic point of view. The structure of the atom and its connection to the chemical properties of the elements should be mastered.

2.Establish the idea that ionic reactions are the viewpoint, and grasp the essence and conditions of ionic reactions.

3.In-depth understanding of redox reaction definitions.

4.Summarize as you learn. For example, the color summary of the substance, the summary of solubility, and so on.

5.There is no need to memorize the properties of elemental elements and their compounds, and you can analyze them yourself from the point of view of ionic reactions and redox reactions.

The questions must be practiced. To find typical questions, don't just ask for the amount of questions, the question types should be complete, and try to include knowledge points.

ps: If the landlord has any questions, you can send them to my mailbox.

1. Back familiarization.

Element No. 20, hydrogen group,

The helium, beryllium, boron, carbon, nitrogen, oxygen, fluorine elements, including their position on the periodic table, are very simple, there are not many in total. As for the location, it's even simpler, what I wrote earlier is the location ......

2. Deepen the concept of electrons, because the chemical reaction is mainly the transfer of electrons, remember how many saturated electrons are in the atom (generally remember 2) 8) 8), the closer to the nucleus, the less likely it is to lose electrons, etc., and the loss of a few electrons is positive.

3. Remember the common valence, here is a slip: potassium, sodium, silver, hydrogen is 1 valence, magnesium, barium, calcium and zinc are 2 valence, copper and mercury are one or two (referring to copper and mercury have two valencies of positive 1 and positive 2), aluminum is positive, and iron has positive two and three. In addition, ferric oxide is special (it is not a mixture of iron oxide and ferric oxide, there is indeed a molecule of ferric oxide, so its valency is not an integer), and oxygen is only positive 2 and so on.

In fact, these can be deduced from the position of the periodic table mentioned in the first article, but it is useful to memorize these few.

4. Will balance chemical equations. This one is easy, too. But there are some common reactions that you need to memorize, because you don't have as much time to take your time during the exam.

5. Do more questions, the same principle is the same, although you may be able to do many questions, but there is not so much time for you to think about it during the exam.

You are also unfamiliar with chemical equations. There is no summary of the various properties of the various substances, and there is no classification and special record, and the genera are considered.

Comprehensiveness is enough. 1. Summarize all kinds of chemical equations that have been learned, memorize them according to a substance that is often tested in inference questions, and memorize the equations related to this substance.

2. On the basis of the first article above, the experimental questions should be practiced a lot, and various common questions should be memorized. Do more and you'll know which direction you should start with.

3. Be sure to do a question to understand a question, and do not simply memorize the question. Ask other students who are good at learning.

4. It is better to do a question than to be the same. Remember.

The key to learning chemistry is chemical terms, element symbols, and chemical equations; Secondly, to establish a microscopic concept, we are studying the chemical reactions that we cannot see with the naked eye; Again, experimentation is important.

Knowledge should form a system, chemical knowledge is the most structural and systematic, such as the derivation of the properties of common substances, the periodic law of the elements, the derivation of the properties of other substances, the key to find a breakthrough, the knowledge used is the basic knowledge of elements, compounds, etc., the first year of high school chemistry did not learn well, and the second year of high school is estimated to spend a lot of effort.

Knowledge has been accumulated bit by bit. Based on what you say, I have a few suggestions:

1.Prepare a DAO book to classify metals and non-specialized metals into their respective properties, phenomena and equations involved. Do more questions, and if there is something new in the question, add it to the inductive content in time.

2.Prepare another notebook and write down the questions you don't understand in chemistry learning.

3.Try to find a solution to the problem by yourself, but if you can't find it, ask the teacher or a good classmate to solve it, and write the solution in the problem book. If you get stuck with a similar problem next time, analyze it again according to this method, so that the context of the mind's chemical knowledge can be clear.

It's been three years since I graduated from high school, and I'm in the bottom 10 of my overall academic achievements, but.

bai my chemistry du top three, I chemistry class zhi sleep, but just will.

dao。If I lie and suffer retribution, my main thing is to remember the valence, precipitation, and color of several common elements, especially inference, starting with precipitation, gas, and liquid color.

High school chemistry is based on the source formula of the chemical equation throughout, not only the chemical equation of each key point, but also remember what the phenomenon of these reactions is, what are the distinctive characteristics, pay attention to the distinction, for example, a common metal, it has two kinds of oxides, its low-valent oxide is light yellow, and the metal reacts with cold water to form a colorless combustible gas, and in this process, the metal swirls and bubbles in the water, it is obvious that this is the sodium metal, and there is a blue solution, white precipitation and the like, Summarize more by yourself, chemistry is to constantly summarize, do more questions, there will be improvement, come on.

Element symbols, chemical equations.

It's just to do more, and I have to insist on it, so when I took the college entrance examination, the inference questions were all written, and the chemistry test was pretty good, and you must know that the college entrance examination is a question that you can't lose.

I think the most important thing is to follow the teacher... Moreover, memorization is required ... Block diagram problems require you to have a good understanding of the substances you have learned about and the reactions between them...

Learn by heart...

I feel like you're quite clear about your own problems.

In essence, the general problem is that the basic knowledge is not solid, first of all, chemistry is the easiest subject to catch up with in science, and it is also the easiest subject to get points, so as long as you have the heart to learn, you must be able to learn well.

As for the following questions, multiple-choice questions, derivation questions, and equations in the experimental questions are all basic knowledge of chemistry that you are talking about. For example, in the case of organic derivation questions, the test is always about the nature of the functional groups mentioned in the book, (if there are extracurricular ones, the questions will definitely give hints.) Although the physical strength gives a great deal of material variety, it is always made up of those functional groups, and as long as the properties of the functional groups are familiar, plus some of the more obvious physical properties in the book, it is easy to deduce, and it is easier to write equations.

Let's talk about the experimental questions, the most important thing is to grasp the experimental principle and clarify the experimental steps The general steps are estimated to be relatively clear, such as gas production, always preparing to remove impurities and collect exhaust gas. Of course, special substances may have special properties, and it is necessary to pay attention to different places, and then there will be some other steps to add. As for thinking that the lab questions have not been done at all, that's right.

I haven't done any of the experiments in the general questions, but they are definitely based on textbook knowledge, so don't be afraid.

Knowledge is understood before memorization. Personally, I like chemistry very much, and I understand it thoroughly when I study it. In addition, I have understood a lot of questions, so I don't think there are many things to remember.