First, the goal is scientific and concise. Some math classes get twice the result with half the effort because teachers set high goals and have many goals. A 40-minute class, taking care of everything, is too heavy a burden. Mathematics teaching was dazzled by the pursuit of many goals and lost its direction. Make each learning goal concise and clear. The teaching objectives of a class should be less and simpler. Let students learn what they have to learn. Concise learning objectives can make students clear their learning tasks, better adjust their learning psychological orientation and quickly enter the learning role state. We often say that students' "learning" embodies the wisdom of teachers. The wisdom of teachers' teaching is to be scientific, appropriate and concise when making teaching objectives. Teachers can design three-dimensional goals of "knowledge and ability, process and method, emotional attitude and values" according to curriculum standards, teaching reference books and examination instructions, and integrate the three goals well in teaching, instead of simply overlapping them, distinguishing teaching priorities and teaching difficulties, and not to raise emotional goals to a very high position and "label" emotional, attitude and values education without knowledge teaching. "If the skin doesn't exist, the hair will attach." In the three-dimensional goal, knowledge and ability are the foundation, the core and the support for the realization of the other two goals. Mathematics teaching should be based on knowledge and ability training, step by step, while infiltrating emotional attitudes and values, and fully implementing the process and methods.

Second, the content is accurate and concise. Classroom teaching time is a constant, and students' learning energy is limited. In order to improve the efficiency of classroom teaching, teachers must pursue the simplicity of teaching content and not cover everything. The "simplicity" of teaching content does not mean shallowness, but it should be combined with precision and fineness, which has a wide range of inclusiveness, far-reaching implications and the effect of "knowing by agreement". Teachers must proceed from students' knowledge base and cognitive habits, make a unique and profound interpretation of the teaching materials according to the requirements of curriculum standards and the characteristics of the teaching materials themselves, dare to change the "order" of the teaching materials, and boldly reorganize the teaching contents. For example, when I teach "two digits plus or minus integer ten or number", the teaching materials arrange two digits plus integer ten or number as a class hour, and two digits minus integer ten or number as a class hour. When preparing lessons collectively, everyone puts forward that the algorithms of integer plus two digits and integer minus two digits are the same, as are the algorithms of two digits plus one digit and two digits minus one digit. If they are combined into a class, the methods can be transferred in time and effectively, and greater teaching benefits can be obtained in less time. In formal teaching, students have mastered the calculation method of two-digit plus integer ten, followed by two-digit minus integer ten. Students naturally migrated the method, then taught two digits to add one digit, and then the corresponding subtraction appeared. The students also solved the problem easily.

Third, the selection of materials is concise. Materials should be "less". The selected background materials should be typical and extensible, suitable for students' life, lively and can be used as a whole; The packaging of the theme should also be enough, and students must not be distracted. Many famous teachers have created vivid, wonderful, full of tension and vitality classrooms with flexible changes and efficient use of less materials. Seeking for "rich" materials, there may be many solutions to the same topic or adapting a topic, guiding students to explore new methods and making each textbook exert the greatest benefit in class. The composition of materials is "excellent". It is forbidden to assemble materials at will, and strive to combine materials into an organic whole. For example, some teachers design the practice part as a "mathematical paradise" when teaching "conversion strategy". Firstly, the mathematical paradise is divided into four places: museum, biological park, game hall and living museum (each place is a reduction problem related to the selected name); Secondly, the teacher described the walking path of Big Head's son in language, taking two squares south to the museum, three squares northwest to the biological park and so on. Then the teacher told the students where the big head son finally arrived, and asked the students to find out the positions of the above four places in turn; Finally, guide students to visit these places, that is, practice related reduction questions. This combined and structured material arrangement can not only make students enjoy the happiness of learning in a relaxed and lively atmosphere, but also ensure the coherence of teaching and the fluency of classroom, highlight the learning theme, and make teaching simple and vivid with a strong sense of integrity.

Fourth, the links are simplified and efficient. For some time, the classroom teaching mode has been constantly renovated. Especially in open classes, the phenomenon of "living but not real" is getting worse. In fact, the starting point of teaching design should be to make students learn more truly, conveniently and effectively. However, the complicated teaching process will destroy the continuity of students' thinking, and students will not only be unable to think continuously and deeply, but also be prone to distraction and desertion. And their energy and time will be consumed in the form of no output. In the long run, they will also form a weariness and impetuous character. Therefore, when designing teaching links, teachers should vigorously advocate simplification, return to the truthfulness, naturalness and simplicity of classroom teaching, and pursue a simple and smooth learning path and a process with the effect of "four or two". The introduction either brings forth the new and comes straight to the point, or stimulates the introduction and expresses the aesthetic feeling. The organization of classroom teaching should be simple. In fact, the knowledge teaching tasks in each math class are relatively few or simple. The important thing is that we should grasp the "main line". The so-called "main line" is the focus and main vein of teaching, and the "breaking ten methods" in the "reduction of ten oddities", the "transformation" idea in the study of triangle area calculation, and the "motion characteristics" of rotation and translation all belong to this. It is the "soul" of classroom teaching and the basis of orderly and effective classroom teaching. When teaching the second volume of cognitive scores in grade three, we can divide the core essence of score meaning into several parts-denominator; It means that several of them-molecules "run through the whole process of learning and serve as the" main thread "of knowledge in the whole class. The design of the lead-in link started from the old knowledge of 1 apple, and then changed to 8 apples 1/4 and 12 apples. Finally, it experienced a great change in Monkey King (1/3,56 of the 24 Monkey Kings). In addition, teachers should make good use of subtraction thinking, integrate and refine teaching links, reasonably remove unnecessary procedures, cut off flashy generalities, cut off endless chatter, cut off mysterious show performances, and make the classroom easier. This is a state. It does not simplify mathematics teaching, but makes mathematics teaching artistic, refined and efficient.

Fifth, the method is simple and easy to learn. The ancients said, "It is better to teach people to fish than to teach them to fish." In order to really change students' learning style, guide them to learn mathematical thinking step by step, cultivate students' mathematical vision and develop their enthusiasm for mathematics, the key is to let students have their own learning methods, which is recognized by most of our mathematics teachers. How to make students "learn the law"? This requires teachers to choose economic teaching methods and achieve the best results with the simplest steps, "Let students jump up and reach." Because of the different class types and teaching purposes, the teaching methods will be different. The study of general calculation can guide students to learn textbooks by themselves, and cultivate students' thinking and calculation ability through simple and easy means such as trial calculation, discussion, comparison, induction and practice. To provide students with conditions for self-construction and self-generation, to promote students' learning to develop in depth, and to let students with weak learning ability truly experience the joy of success. I remember a story about a father and son walking in the city and a stranger asking for directions. Father is very enthusiastic, telling passers-by which bus to take first, then turn a few blocks, and finally wear a few alleys. Passers-by looked blank at this. Instead, the child next to him interrupted: "The tallest building in front. Keep your eyes on the roof and go straight ahead. " Passers-by were overjoyed. What a concise method and a wise answer. From this point of view, it seems that our teacher can't lead the students around by the nose in the math maze that we designed too carefully and thoughtfully, like this enthusiastic father, so that our students can't get rid of the teacher's crutches or even have empty hands. Teachers should have this child's "strategy" when guiding students to "learn the law"-concise and easy to learn.

Sixth, the media is simple and effective. Multimedia courseware is intuitive, dynamic and large in capacity, and it is a good teaching aid. However, it speeds up the pace of classes, increases the capacity of classes, and affects students' experience, imagination and thinking. Therefore, modern information technology, as a teaching method, should be as simple as possible, and should not be overly dependent and artificially enslaved. Courseware production should strive for wonderful pictures, clear pictures, prominent layout, appropriate video and animation length, clear theme, not too fancy, and avoid the interference of useless information; Reduce the number of words, pay attention to the thickness of lines and the size of fonts to ensure that students can fully perceive objects and prevent study fatigue. Good steel should be used on the blade. For example, in the introduction of axisymmetric graphics, a teacher first played a video of the opening ceremony of the Athens Olympic Games through courseware, and then asked: What did you see from the video just now? The students replied cheerfully: I saw Yao Ming; I saw the Olympic rings; I see many athletes in China; I saw the Olympic torch ... a few minutes passed, and it was still endless. The teacher had to continue to guide: "What is Yao Ming's hand?" Some students immediately replied: "the national flag." "What's on it?" "Five-pointed star!" The students answered in chorus. When I heard this, I realized that the teacher originally wanted students to find the axisymmetric figure of the "five-pointed star" from the video. Compared with a 40-minute class, it is really unnecessary and of little value to spend five or six minutes to explore the content of "However, we called a thousand times and urged her to start work with us a thousand times". Another teacher organized the girls in the class to pose a "Goddess of Mercy with a Thousand Hands" to arouse students' memories of this program, and then guided them to observe: this program is beautiful, which brings strong visual impact and artistic enjoyment. What do you think are the characteristics of these models in the program? Teachers' timely guidance naturally produces a "symmetry phenomenon" in life, which is economical, simple and effective. The traditional teaching method does not represent the traditional teaching idea, the screen can not replace the necessary blackboard writing, and the ancient blackboard and chalk still have their unique charm. Therefore, when preparing lessons, math teachers should not forget to carefully design the main and auxiliary blackboard books, concentrate the teaching content, and give full play to their role of making the finishing point and outlining. When some teaching AIDS (including multimedia) are available or not, no matter how good and unsuitable the technology is, it is useless.

Seven, the language is concise and clear. Simplicity is the essence of teaching language. Teachers should repeatedly scrutinize the teaching language, eliminate impurities and cancers in questioning language, inspiring language, commenting language, explaining language and transitional language, and temper the teaching language to be concise, thorough and clean, so as to make the classroom as clear as the clear sky in autumn and make students feel relaxed and happy. To this end, teachers should prepare lessons carefully, dig deep into teaching materials, revise teaching plans repeatedly around key points, difficulties and keys, grasp the timing and quantity of lectures, consider what to say, what questions to ask, where to talk more and where to talk less, and write them on paper when necessary, so as to talk less. Teachers should try their best to use easy-to-understand language in class to ensure that the questioning language is clear, the interlanguage is natural and smooth, the evaluation language is concise and frank, and the explanation language is concise and mysterious. According to the characteristics of primary school students' lack of concentration, teachers should skillfully use the special functions of body language such as gestures, eyes and body movements to express their feelings, and suggest students to standardize their learning behavior and concentrate on listening.

Shakespeare said, "Simplicity is the soul of wisdom." Simple classroom teaching is a process of getting the message and simple movements. In order to create a simple and light mathematics classroom, teachers should take the famous teacher's "simplicity and ingenuity" as an example, study hard, enrich their self-cultivation, deeply study the learning situation, read the teaching materials repeatedly, constantly reflect on optimizing teaching strategies, cancel the appointment for taking a blog, and simply control the complexity, so as to make the classroom a magnetic field full of passion and wisdom, unlimited possibilities, life colors and humanistic charm.