First, study the teaching materials carefully and make clear the main points of knowledge.
At present, in the fourth unit of the sixth grade mathematics textbook published by People's Education Press, the knowledge of the whole primary school is divided into six parts to facilitate our general review. In fact, we don't have to classify it in this way. For example, according to the requirements of the new curriculum, we can divide the content of mathematical knowledge into "four fields"-number and algebra, space and graphics, statistics and probability, practice and comprehensive activities. Of course, these exercises and activities generally do not appear in the usual exams. There are many knowledge modules in every field ("number and algebra" field includes knowledge modules such as number cognition, number operation, formula and equation), and each knowledge module also includes many knowledge points ("formula and equation" module includes knowledge points such as "expressing numbers with letters, simple equations, ratios and proportions"), and each knowledge point also includes many knowledge points ("proportion" knowledge points include "the meaning and basis of proportions". Some people compare our usual new teaching to "planting a living tree", while it is easier to plant a living tree than to "cultivate a good forest". Cultivating a good forest requires great efforts. For students, the review class is neither so "fresh" as the new teaching, nor so successful as the practice class. For teachers, review class should teach students to obtain new information, present old knowledge in new forms, and guide students to explore and learn from a new angle, to analyze and think about solving problems. Teachers should clarify and straighten out the knowledge points of each module, paving the way for students to build a knowledge network.
Second, flexible design of teaching ideas, organizational knowledge
Organizing knowledge is an important part of review class. It is common for teachers and students to organize their knowledge by asking and answering questions during review. We think it's best to take students as the center and design teaching ideas flexibly according to the characteristics of review content, students' cognitive rules and their own teaching styles. For example, take reviewing the key points of "the meaning of a score" as an example. First, let the students recall and sort out the relevant knowledge points (meaning of a score, unit of a score, true score, false score, band score, etc.). ).
Establish a network first.
(numerator is less than denominator)
True score (less than 1)
Fraction (numerator greater than denominator)
False score (less than 1 or equal to 1)
The numerator is a multiple of the denominator, and the numerator is not a multiple of the denominator.
Integer band fraction
Discussion:
What is the connection and difference between (1) fraction and decimal unit?
(2) What is the connection and difference between fraction and division?
Contact network:
Nominal name
contact
differentiate
division
bonus
Division symbol (÷)
divisor
business
This is an operation.
mark
molecule
Fraction line (-)
A separated mother
Fractional value
It is a number.
Under the guidance of teachers, students take themselves as the center, and sort out knowledge through the communication between classmates, so that students can easily sort out knowledge and understand the connections and differences between knowledge. When students' induction is incomplete, teachers can play the courseware prepared before class in time for students to study in contrast. In order to improve the efficiency of review class, make as many courseware as possible before class. Several teachers in the preparation group can cooperate to make courseware and reduce the workload. )
Third, grasp the key points of review and carefully design exercises.
Organizing effective exercises is an important means for students to master knowledge, form skills and develop intelligence. It is also an important part of review. In review, teachers should grasp the key points of review, select or design some exercises in a planned and targeted way, so as to make students concise and ensure that all students can improve on the original basis. (Be sure to prepare questions when preparing lessons)
Pay attention to the following points when designing exercises: 1. Pay attention to the foundation, grasp the key points and carry out basic exercises in review; 2. Highlight the pertinence, design contrast exercises for reviewing the weak links of middle school students' knowledge mastery, and for some confusing and error-prone knowledge, so that students can distinguish the mastery of knowledge in the comparison; 3. Emphasis on comprehensiveness, so that students can comprehensively use knowledge and methods in review and improve their ability to solve problems flexibly, which is the ultimate goal of review. Therefore, it is necessary to have a certain number of basic exercises and slightly changed exercises, as well as some comprehensive exercises and ideological exercises, so as to be hierarchical, gradient and flexible and meet the needs of students at different levels.
Fourth, check and fill gaps, and consolidate and strengthen weak links.
Checking and filling in blanks is an important part of review. Therefore, it is very important to find out the "missing" and "missing" among students before review, and we should attach great importance to checking the missing and making up for the missing and correcting the mistakes in the review class. It is a good way to find out the "omissions" and common mistakes in students' homework and write down the problems at ordinary times. It is also very necessary to make a full investigation according to the relevant content and teaching requirements before reviewing the class. It should be noted that the survey questions should be based on the survey motif, and there should be no eccentric questions, and the number of questions should be moderate. Then, according to the students' questions, the types of questions that are easy to make mistakes, common mistakes and confusion are varied, so that students can practice repeatedly and strengthen their mastery and consolidation of weak links. In short, variant exercises and deepening exercises should be carried out according to the actual level of students in the class to find the growing point of students' knowledge.
Five, hierarchical teaching, do a good job of after-school counseling.
Do a good job in after-school counseling and pay attention to hierarchical teaching. After class, students at different levels should be given corresponding counseling to meet the needs of students at different levels, avoid the disadvantages of one size fits all, and at the same time increase the counseling efforts for underachievers. The guidance of underachievers is not limited to knowledge-based guidance, but more importantly, the guidance of learning concepts. To improve their grades, we must stimulate their thirst for knowledge and self-motivation through various channels, so that they can consciously devote themselves to their studies. On this basis, teach them to learn methods, improve their skills, and do a good job in checking and filling gaps. Underachievers usually have many knowledge faults, which are stumbling blocks in the transformation process of underachievers. When doing a good job in the transformation of underachievers, we should pay special attention to make up lessons for them, make up the knowledge gaps they have learned before, make them learn easily and make rapid progress, and increase their interest and thirst for knowledge.
In short, teachers should adopt flexible teaching methods and different learning methods according to the differences of students' individual development, so that students can better understand and remember what they have learned and make up for the lack of previous learning knowledge. It is also necessary for students to give full play to their subjective initiative through observation, comparison, analysis and discussion, so as to provide students with a space to develop their knowledge and skills freely and achieve good results in the final entrance examination.