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New Hainan client, Nanhai Net reporter Huang Ting intern Feng Lanqian
In the last 20 days, how to do a good job in the review and preparation of chemistry subjects? At the invitation of the new Hainan client, Nanhai Net, and Nanguo Metropolis Daily, Ms. Tong Xuelian, the leader of the senior chemistry preparation team of the Haikou Affiliated School of Beijing Normal University, combined with more than 10 years of high school chemistry teaching experience, helped candidates lose less points and get more points in the chemistry exam.
"Since the new college entrance examination, a major trend in the chemistry paper of the Hainan college entrance examination is to highlight the core literacy of high school chemistry with innovative situational background and examination perspective." She reminded the candidates that in the final sprint stage, they should return to the textbook in a targeted manner and check and fill in the gaps in time; Review the wrong questions, attribute the mistakes, find the root cause of the mistakes in the textbook and solve them; Do the questions appropriately and keep the feel.
"Only by taking the college entrance examination can the college entrance examination be normalized and give full play to your best level." She Xuelian reminded candidates to adjust their work and rest and mentality in time to meet the college entrance examination in the best state.
Teacher She Xuelian. Photo by reporter Mo Zhuangqing
Keywords: Examination focus
Highlight the core literacy examination of high school chemistry
"The question structure of chemistry in the Hainan college entrance examination has been relatively stable in recent years, and there are no new changes in the question type." According to Tong Xuelian, the question types of chemistry papers are divided into objective questions and subjective questions.
1. Objective questions include multiple-choice questions (8 questions with a total of 16 points) and indefinite multiple choice questions (6 questions with a total of 24 points).
2. Subjective questions: 60 points, a total of 5 questions. The content of the 5 questions is relatively fixed, namely: process flow, chemical reaction principle, chemical experiment, organic chemistry basis and material structure.
"Since the new college entrance examination, the difficulty of the chemistry questions in the Hainan college entrance examination has been relatively stable." She Xuelian predicts that there should not be much change in the difficulty of the chemistry paper in this year's college entrance examination.
In the context of the new college entrance examination, what abilities do students focus on in chemistry, and how do candidates deal with them? She Xuelian introduced that the college entrance examination evaluation system stipulates "what to test", that is, "necessary knowledge, key abilities, subject literacy, and core values"; It also clarifies the "how to test", that is, "basic, comprehensive, applied, and innovative". Since the implementation of the new college entrance examination in Hainan, the core literacy of high school chemistry has been highlighted with innovative situational background and examination perspective. That is, macro identification and micro analysis, change concept and balance thinking, evidence reasoning and model cognition, scientific inquiry and innovation consciousness, scientific attitude and social responsibility.
"In order to achieve better chemistry results, candidates should build a complete knowledge system, attach importance to chemical experiments, pay attention to the cultivation of critical, rigorous and systematic thinking quality, and pay attention to information acquisition and processing." She stressed.
Teacher She Xuelian was interviewed. Photo by reporter Mo Zhuangqing
Keywords: Exam preparation strategies
Targeted return to textbooks
In view of how to do a good job in the review and preparation of chemistry in the last 20 days, Tong Xuelian suggested that candidates should focus on four aspects.
First, return to the teaching materials and lay a solid foundation. "The examination of chemistry in the college entrance examination is still the highest proportion of the basic examination." She said that after three rounds of revision, many students were addicted to brushing up on the questions and neglected the reproduction of the basics. Therefore, in the final review and preparation stage, candidates should follow the teacher, return to the textbook, and maximize the value of the content of the textbook.
"Of course, returning to the textbook is not to read books for the sake of reading books, not to read books only when the teacher asks me to read books, but to read books in a targeted manner according to my own needs." She Xuelian said that when candidates have omissions in basic knowledge, when they can't remember the main points of the experiment, they should return to the textbook in time when they summarize and summarize.
She reminded that the return to teaching materials should pay attention to the details and build a system. It is recommended that you open the textbook and review the knowledge clues and key points of each volume, chapter, and section according to the table of contents. "Which chapter is ambiguous is the part that returns to the focus of the textbook." She said.
She Xuelian said that based on the importance of chemical experiments, an important part of returning to the textbook is to read every experiment in the book in a targeted manner, including the purpose of the experiment, the instrument and reagent, the device diagram, the experimental operation, the purpose of the operation, the experimental phenomenon, the conclusion, and the analysis and discussion.
In addition, you should carefully do the exercises in the textbook, including example questions and after-class questions. Through these questions, the basic concepts and methods are consolidated, and the association with the real questions of the college entrance examination is formed. If you have enough energy to learn, you can try to create simple questions based on the textbook materials.
Find the root cause of the mistake and solve it
Second, look back at the wrong questions and improve the score efficiently. "Solving one hole is better than doing ten new problems." She Xuelian reminded candidates to attribute the wrong questions, find the root cause of the mistakes in the textbook and solve them. Then redo the wrong questions and make sure you have a complete grasp of them. "The more you get to the exam, the more necessary it is to review the wrong questions. Those who have been thoroughly understood can be deleted from the error book, and the mistakes should be read frequently to prevent recurrence. She said.
Brush the questions appropriately to maintain the feel
Third, in addition to reading the textbooks and reading the wrong questions, it is also necessary to properly brush the questions to maintain the feel, especially the Hainan college entrance examination questions in previous years, which are worth candidates to study in the context of the situation, the direction of the proposition, the content of the examination, and the way of asking questions, so as to ensure that the high-frequency test center does not lose points.
Adjust your work and rest and stabilize your mentality
Fourth, adjust your work and rest and adjust your mentality. "Pay attention to every exam. Every big and small test is treated as a college entrance examination, carefully check every option, and carefully write every fill-in-the-blank. She Xuelian reminded candidates that less than a month before the exam, they should consciously adjust the peak period of energy to the same frequency as the college entrance examination.
Keywords: answering skills
Carefully review the question and circle the key information
In view of the answering skills and precautions for each question type of the chemistry paper, She Xuelian also combined her rich experience to guide the candidates.
First of all, carefully review the question and circle the key information in the question stem and charts. Review the key information in the corresponding questions before answering. Don't blindly pursue the speed of answering questions and ignore the quality of answers.
When doing multiple-choice questions, look at the direction of the question, for example, whether you choose "correct" or "incorrect". It is recommended to put "√" after the correct option and "×" after the wrong option, regardless of whether it is a single choice or an indefinite item, so as to prevent the wrong selection due to unclear review questions.
When doing big questions, we should pay the same attention to the question setting, such as whether the chemical terminology asks "ion equation" or "chemical equation", the organic question requires the "simple structural formula" or "molecular formula" of the substance, the structure question asks whether the "electronic configuration" or "electronic configuration diagram", and whether the "valence layer" is required.
Learn to "borrow" to standardize expression
Secondly, it is also necessary to pay attention to the normative expression. For example, whether there is a unit for the calculated quantity, whether the conversion rate of the solution is given "%", etc.
How to achieve standardized expression? She advises candidates to learn to "borrow". The first is to learn to answer in the language of the question by relying on the information of the question; the second is to rely on the language of the textbook and express it logically and completely; The third is to rely on the answer template to ensure the integrity of the answer specification to the greatest extent. "It can be said that the reference answers to the real questions of the Hainan college entrance examination in recent years are the best answer templates." She Xuelian suggested that candidates carefully study the answers to the past college entrance examination questions and refer to the standardized expressions of the answers to the college entrance examination questions.
Answer in order When you encounter a problem, don't love the battle
In view of the order of answering, she suggested that the college entrance examination answers should be answered in order from easy to difficult, so that they can buffer tension and adjust their thinking level. "There must be some innovation in the college entrance examination questions, and there will always be some questions that make students' eyes light up or panic. This is all normal, don't panic, don't fall in love, jump over in time when you encounter obstacles, and adjust yourself to the next topic you will do. She said that if everything was right, it would be a success.
If you still have a small amount of time to answer the question, first check whether there are any mistakes in the answer sheet of the multiple-choice questions, and then check whether there are any errors in the connection method of the organic matter in the organic question. Don't rush to correct the mistakes you find, think about them in a different way, and make sure that there are mistakes before you start to revise them.
"The college entrance examination is an important battle in the lives of students, in fact, it is just a stop, and the future will not be determined by an exam." She Xuelian cheered for the candidates. She hopes that the students will travel lightly, learn happily, succeed in the exam, and win beautifully!