There are generally two ways to solve multiple-choice questions:
First, consider the stem of the question and explore the results;
The second is to explore whether the problem stem conditions are met from the common consideration of the problem stem and the choice of branches or from the choice of expenditure.
The methods to solve multiple-choice questions in mathematics mainly include direct comparison method, concept discrimination method, image analysis method, special case test method, exclusion method and reverse thinking method. These methods are not only the concrete embodiment of mathematical thinking, but also the effective means to solve problems.
Extended data:
The scores of multiple-choice questions generally account for about 40% of the whole volume. The basic characteristics of multiple-choice mathematics questions in college entrance examination are:
1, most of the multiple-choice questions in mathematics belong to the middle and lower grades, and are generally arranged in the order from easy to difficult. The main mathematical ideas and methods can be fully embodied and applied through it, and because it is still difficult (such as the level of thinking, the choice of the advantages and disadvantages of solving problems, the speed of solving problems, etc. ), multiple-choice questions have become one of the basic questions with good discrimination.
2. Multiple-choice questions are characterized by strong generality, wide knowledge, compactness and flexibility, a certain comprehensiveness and depth, and almost every question has two or two kinds.
The above solutions can effectively test students' thinking level and ability of observation, analysis, judgment and reasoning.