Binzhou senior high school entrance examination exchange QQ group:119408121.
Analysis on the overall difficulty of chemistry in Binzhou senior high school entrance examination;
Chemistry of Binzhou senior high school entrance examination has ended. Compared with previous years, we will find many differences. Here, Mr. Ma makes an overall analysis and summary of the chemistry test paper of this senior high school entrance examination from three aspects: the layout of the test paper, the difficulty of the topic and the comprehensive quality, and summarizes the experience and lessons, which will be helpful or instructive to the future study and teaching.
Binzhou city chemistry test paper answer analysis has the following characteristics:
1, Binzhou city, chemical examination questions seek change steadily, change and innovation. Such as 3 1 and 36 questions. 3 1 problem block diagram inference problem. Only one text message is given in the title: C is the main component of marble, and the rest information is given in the form of block diagram. The topic highlights the examination of students' knowledge induction ability and logical reasoning ability. Question 36 has changed a lot. After several years of studying the calculation of mass conservation type,
This year, the topic of tabular data analysis was grandly launched. Ask students to read the text information given in the topic, and then read a series of data records that give the experimental results in tabular form. The students' ability of data analysis and integration was investigated, which improved the difficulty.
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2. Binzhou Chemistry pays attention to the foundation, highlights the trunk and closely links with practice. The test questions focus on the sequence of metal activities, the properties and uses of common substances, the writing of chemical equations, the meaning of chemical symbols, the basic operation of chemical experiments, experimental exploration, solving knowledge and basic computing ability. The test questions involve more than 60 kinds of substances, including chemical reactions 16, among which 3 chemical equations are required, and the coverage rate of main knowledge is over 80%. The problems involve paying attention to returning to textbooks, exploring the law of conservation of mass, making distilled water in the laboratory, making carbon dioxide in the laboratory, decomposing hydrogen peroxide, burning iron wire in oxygen, neutralizing reaction between calcium hydroxide and hydrochloric acid and so on. Some are teaching material experiments, and some are the processing and sublimation of teaching material experiments. Test questions reflect the importance of teaching materials, highlight the relationship between knowledge and ability, and emphasize the importance of basic knowledge of chemistry. In the way of presenting test questions, we should start with the things around students and social hot issues, highlight the connection with social reality and students' life reality, reflect the application of chemistry in production, life and science and technology, and guide students to analyze and solve problems by using the chemical knowledge they have learned in specific situations. Binzhou senior high school entrance examination physics paper click word text version to download.
Word text download of Binzhou physics test paper. vitality
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3. Investigate the students' ability to obtain information by combining chemistry charts in Binzhou. There are as many as 17 charts in the test questions. By analyzing the chart, the correct information is extracted to answer the questions, which fully reflects the examination of students' ability to obtain information. The questions provide information by setting pictures, images or tables from different angles and levels, and examine students' understanding of solutions, mutual transformation between substances, basic operation of chemical experiments, laboratory preparation of distilled water, laboratory preparation of carbon dioxide, acid-base neutralization, chemical properties of oxygen, etc. 4. Binzhou City strengthens the exploration of chemical experiments and cultivates scientific thinking methods. Experiment is not only the core knowledge of chemistry learning, but also an important method to learn the core knowledge of chemistry. The chemistry test questions of Hebei senior high school entrance examination have always attached great importance to the examination of experiments. In recent years, the average score of experimental questions accounts for more than 30% of the total score of chemistry questions. The experimental questions inherit the characteristics of inquiry and openness, and at the same time present the characteristics of wide scope of examination and diverse test questions. This year's experiment involves the nature and collection of oxygen, acid-base neutralization, exploring the law of conservation of mass, making distilled water in the laboratory, making carbon dioxide and oxygen in the laboratory, cleaning experimental instruments, measuring the pH of solutions, diluting concentrated sulfuric acid and taking liquid drugs. The experimental questions not only examine students' understanding and application of chemical knowledge, but also highlight students' understanding and application of scientific experimental methods such as selection of experimental methods, comparative experiments and control of variables.