Interpretation of the outline of the new college entrance examination chemistry examination

The focus of the revision of 20 17 chemistry course is to optimize the examination content, improve th

Interpretation of the outline of the new college entrance examination chemistry examination

The focus of the revision of 20 17 chemistry course is to optimize the examination content, improve the scientificity and fairness of the examination outline, and enhance the foundation, comprehensiveness, application and innovation of the content.

First of all, the main changes are:

1. What are the four examination modules specified in the current examination syllabus? Chemistry and life? Chemistry and technology? Material structure and properties? And then what? Fundamentals of organic chemistry? Ask students to choose 1 module from 4 modules to answer. Interpretation: 20 16 chemistry problem is slightly simpler than 20 15, but the overall stability is better; The proposition pays attention to measuring students' autonomous learning ability, integrating theory with practice, and paying attention to the coordinated development of science and technology, social economy and biological environment related to chemistry, which has injected the integration of China traditional culture and chemical knowledge. The number of test papers is moderate, and the choice of test sites is reasonable, which is slightly different from previous years. Among them, the novel setting angle of big questions, some of which come from real situations in production and life, and the emphasis on experimental inquiry and reasoning ability are the important characteristics of this year's chemistry volume, which embodies a good degree of discrimination. It is not ruled out that the difficulty of the topic will be adjusted after the reform, and basic knowledge is the most important.

2. Delete the revised examination syllabus? Chemistry and life? And then what? Chemistry and technology? Two modules. Where is the candidate from? Material structure and properties? And then what? Fundamentals of organic chemistry? Select 1 module to answer.

Explanation:

? Chemistry and technology? The deletion of the questions will further increase the probability of the non-multiple-choice questions in the compulsory examination, and attention should be paid to the review of this part. According to the characteristics of chemistry subject, a large number of experimental inquiry activities have been added to chemistry test questions, emphasizing the important position of experiments in chemistry subject. When reviewing, we must combine some typical experiments to teach, which can not only improve our interest in learning, but also deepen our understanding and application of knowledge. If conditions permit, students should be allowed to re-enter the laboratory and redo typical hands-on experiments.

Second, the preparation suggestions

1, pay attention to the review and consolidation of basic chemical knowledge and methods.

The main knowledge of the subject is the key content of the college entrance examination. The review of college entrance examination should focus on the composition, structure, properties, electrolyte solution, periodic law of elements, chemical reaction rate, chemical equilibrium theory, redox, element knowledge, basic experiment, organic chemistry knowledge, chemical calculation and other main knowledge, start with basic concepts and theories, integrate element compounds with experiments, establish a knowledge network system, and effectively consolidate students' basic knowledge, basic skills and basic methods.

Basic knowledge, basic skills and basic methods are not investigated in isolation, but the integration of multi-module knowledge content. Therefore, in review teaching, we should pay attention to guiding students to carefully examine questions and strive to improve their ability to apply chemical knowledge to solve practical problems in the new situation.

2. Strengthen the understanding of basic concepts and improve the computing power.

Some contents have been added to the new syllabus: understanding the concepts of quantity and concentration of substances and making relevant calculations; Understand Gais law, and can use Gais law to calculate the enthalpy change of reaction; Calculation of chemical reaction conversion rate; Correlation calculation of ionization equilibrium constant: understand the meaning of solubility product and can calculate it.

These changes reflect that the calculation in the college entrance examination is often deeply integrated with the reaction principle, paying attention to the understanding of concepts and the examination of chemical thinking methods, and the pure digital operation will be diluted.

3. Pay attention to the use of teaching materials and the review of chemical experiments.

Candidates should pay attention to textbooks, read textbooks and return to textbooks in college entrance examination review. Carefully sort out the basic knowledge points, make the basic knowledge systematic and organized, and enhance proficiency and accuracy. On this basis, we should systematically train the exercises in supplementary reading materials, supplement a certain number of exercises according to the test sites and our own learning situation, and learn to use the knowledge we have to analyze and solve problems.

In addition, in the review of senior three, we must leave enough time and space for the experiment, and we must not let the experiment review go through the motions in a hurry. When necessary, take experiments as the main line to drive the review of other knowledge points.

4. Avoid common mistakes and pay attention to the answer criteria.

We should be good at summing up the places where we often lose points in previous chemistry exams, so as to take a warning and attract attention. From the usual time, divide the norms. Careless examination, eagerness for success and thoughtlessness are the common problems of candidates' mistakes in solving problems.