A learning method refers to preparing for self-study before learning something, so as to achieve better learning effect.
1, squeeze time for preview; Because of the heavy homework pressure of middle school students, students may not have time to preview their homework before each class. In case the teacher speaks too fast, he may not be able to absorb it, and he will inevitably be a little upset. But who said that the preview work must be finished the night before? If you can make good use of every minute, then a short five minutes before class is also an excellent time. The most available time is on the way to school in the morning, waiting for the bus, etc. Even after the teacher steps into the classroom, he can preview in roll call time for a few minutes. And because time is extremely limited, sometimes it will have unexpected effects.
2. Preview in advance; Many students who are keen on social activities, even if they spend most of their time on activities, can still keep the class first and second. What is the reason? On the contrary, some students bury themselves in reading all day and their grades have not improved. What's the difference between them? In fact, students with more social activities also need to spend time reading. It is likely that they know the classroom process better than other students. In order to get more than twice the reading income, they often read through in preview. At least, I have the habit of previewing three weeks in advance, so as to keep good grades steadily. Significant preview effect preview 80%; Review 20%.
It is suggested that those who are not good at reading can try to preview reading. The so-called preview doctrine does not mean that you don't review at all, but that you spend more time previewing and less time reviewing. If you are well prepared, you can roughly understand 80% to 90% of the course content. The common purpose of review is only to make up the remaining 10% to 20%. On the contrary, if you don't pay attention to preview, you may have to repeat it several times after class to produce the same effect.
3. Reasons for previewing. Preview is to read the upcoming teaching content before class, understand its outline, and be aware of it, so as to grasp the initiative in class. Preview is an attempt of autonomous learning. Whether you understand the learning content correctly, whether you can grasp the key points and hidden thinking methods, etc. It can be tested, strengthened or corrected in time in class, which is conducive to improving learning ability and forming the habit of self-study, so it is an important part of mathematics learning. Mathematics has a strong logic and coherence, and new knowledge is often based on old knowledge. Therefore, when previewing, you should find out what you need to learn new knowledge, and then recall or review it again. Once we find that the old knowledge is not well mastered or even understood, we should take timely measures to make up for it, overcome the learning obstacles caused by not mastering or forgetting, and create conditions for learning new content smoothly. The method of preview, besides recalling or reviewing the old knowledge (or preparatory knowledge) needed to learn new content, should also understand the basic content, that is, know what to say, what problems to solve, what methods to adopt, where the focus is, and so on. In preview, reading, thinking and writing are generally used to draw out or mark the main points, levels and connections of the content, write down your own views or places and problems that you can't understand, and finally determine the main problems or solutions to be solved in class to improve the efficiency of class. In the arrangement of time, the preview is generally carried out after review and homework, that is, after finishing homework, read the content to be learned in the next class, which requires flexibility according to the specific situation at that time. If time permits, you can think more about some problems, study deeply, and even do exercises or exercises; Time does not allow, we can have fewer questions and leave more questions for lectures to solve. There is no need to force unity.