I. Teaching objectives 1. Knowledge objectives and skills: ① Through study, students can apply percentages to solve practical problems and understand the meanings of tax rate, interest rate and discount; ② Students can recognize the characteristics of cylinders and cones, correctly judge them, understand and master the calculation methods of surface area and volume of cylinders and cones, and can correctly calculate them; ③ Students can give examples to understand the departmental statistical chart. Understand modes and averages. (4) to master the method of determining the position of objects by direction and distance. ⑤ In the process of solving practical problems, students learn to use transformation strategies to seek ideas to solve problems, and can determine reasonable methods to solve problems according to specific problems, thus effectively solving problems. ⑤ Students can understand the meaning and basic nature of proportion and know solution ratio. Know the scale, know the scale and calculate the scale; Understand the meaning of direct ratio and inverse ratio, you can judge whether the two quantities are direct ratio or inverse ratio, understand the method of solving application problems with proportional relationship, and learn to solve relatively easy application problems with proportional knowledge. Students can consolidate and deepen their understanding of mathematics knowledge learned in primary schools through systematic review, better cultivate more reasonable and flexible computing ability, and develop thinking ability and spatial concept. And improve the ability to solve simple practical problems by comprehensively applying the learned mathematical knowledge. 2. Process and method: The teaching content of this semester should be closely related to students' living environment, based on students' experience and existing knowledge, which is helpful for students to learn independently and communicate cooperatively, so that students can acquire basic mathematical knowledge and skills through observation, operation, induction, communication and reflection, further develop their thinking ability, let students understand mathematics in situational experience and enhance the concept of space. Develop thinking in images and attach importance to students' consciousness and ability of applying mathematics. They can use the "transformation" strategy to solve some simple practical problems, further enhance their awareness of strategy and reflection, appreciate the diversity of problem-solving strategies, and cultivate their ability to choose corresponding strategies according to the characteristics of practical problems. 3. Emotion, attitude and values: ① Being able to actively participate in various mathematical activities and feel their gains and progress in mathematical knowledge and methods. Enhance curiosity and thirst for knowledge about mathematics, and further establish confidence in learning mathematics. ② In the activities of exploring and understanding the calculation method of percentage, the basic properties of proportion and the volume formulas of cylinders and cones, I further feel the rigor of mathematical thinking and the certainty of mathematical conclusions, gain some successful experiences and exercise my will to overcome difficulties. ③ By reading Do You Know and participating in Practice and Comprehensive Application, we can further understand the background of relevant mathematical knowledge. Experience the role of mathematics in the development of human history, cultivate national pride, enhance innovation consciousness and exercise practical ability. 4. Quality objective: the average score of each unit test is above 83, and the average score of final quality acceptance is above 85. The excellent rate and pass rate are above 40% and 95% respectively. Ii. teaching material analysis 1. This semester's textbook knowledge structure system analysis and skills training requirements: This textbook includes the following contents: percentage application, cylinder and cone, proportion, position determination, positive and negative proportion, problem-solving strategy, statistics and general review of mathematics content learned in primary school for six years. These contents of this textbook are completed on the basis of previous volumes. Further form the concept of statistics, master the method of expressing the results of data sorting with fan-shaped statistical charts, and improve the ability of analysis, prediction and judgment based on statistical data; Understand the concepts of proportion, positive proportion and inverse proportion, deepen the understanding of some common quantitative relations, use proportional knowledge to solve relatively easy application problems, then systematically sort out and review the main contents of primary school mathematics, consolidate the mathematical knowledge learned, and enable students to comprehensively use the mathematical knowledge they have learned to solve relatively simple practical problems; Combining the arrangement and review of new teaching content and system, we can further develop thinking ability, cultivate thinking quality and carry out ideological and moral education. 2. Teaching emphasis: The cylinder, cone and proportion in this textbook are important contents of primary school mathematics. 1. Understanding the characteristics of cylinders and cones and mastering some calculations of cylinders and cones can not only lay a good foundation for further learning the surface area and volume of other objects and their calculations, but also further develop the concept of space. It can also enhance the strategies and methods to solve problems, gradually enhance students' awareness and ability to collect and process information, and finally learn a better proportion of knowledge, which can not only enhance students' ability to deal with mathematical problems by mathematical methods, but also enable students to obtain preliminary functional concepts, making preliminary preparations for further learning related knowledge. Therefore, let students understand the concepts of these contents and learn to apply these concepts, methods and calculations to solve some practical problems. Is the focus of teaching. 3. Analysis of students 1, style of study in teaching classes, students' knowledge mastery, learning ability and learning attitude. There are 48 students in this class, including 28 boys and 20 girls. From the analysis of last semester's exam results, students have a solid grasp of basic knowledge, concepts and definitions, and are good at oral calculation, written calculation and off-line calculation, but there are still many carelessness. There are also some students who are not conscious enough to finish their homework in time, which makes it difficult for them to learn math. Therefore, in the new semester, while correcting students' learning attitude, we should strengthen the cultivation of their various abilities to learn mathematics in order to improve their grades. 2. Analysis of students with learning difficulties The students with learning difficulties in this class are Xu Xinsheng, He, Yang, etc. These students are not conscious enough, lack the spirit of studying hard and always want to be lazy. Don't do homework, don't copy other people's homework. In the future, we should first strengthen the cultivation of study habits, such as self-study before class and review after class. We should continue to improve our writing requirements. Only when students write carefully can we think seriously. Secondly, the calculation of scores this semester accounts for a large part, so it is the key to cultivate their computing ability. In addition, the application of scores is the focus of this semester. Strengthen the analysis of mathematical quantitative relationship in teaching, so that students can learn to analyze. Learn to examine questions and improve the ability to solve problems. Finally, find more ways to stimulate students' interest in learning and let them study happily. These students are required to have an average score of over 70 in each unit test and an average score of over 75 in final quality acceptance. The excellent rate and pass rate are above 40% and 95% respectively. Four. Measures to improve teaching 1. The concrete measures to implement the "five consciousnesses" in teaching (1) make full use of materials that students are familiar with, interested in and have practical significance to attract students, so that students can actively participate in various mathematics activities, improve learning efficiency, stimulate learning interest and enhance learning confidence. (2) Carefully study the textbook and make clear the writing intention of this textbook. Pay attention to communication and discussion with teachers, and adopt effective and easy-to-understand teaching strategies step by step, so that every student can develop. (3) Make good use of teaching AIDS, teaching AIDS and learning tools that match the teaching materials. ⑶ Strengthening the teaching calculation of calculation is the focus of this textbook. On the one hand, it guides students to explore and understand basic calculation methods, on the other hand, it helps students to form necessary calculation skills through corresponding exercises, and at the same time, it pays attention to the connection between teaching materials. Integrate the content organically and improve the ability to solve practical problems. 5. Introduce extracurricular mathematics knowledge and methods, broaden students' horizons, enhance students' interest in learning, help and teach pairing activities, keep in touch with the parents of underachievers, timely reflect the learning situation at school, urge them to improve their grades, and help them establish their confidence and determination in learning. 2. Stimulate students' interest in learning mathematics. For students with good foundation, vigorously carry out extracurricular interest group activities in mathematics. Carry out small and diverse math competitions in a timely manner, and conscientiously implement the requirements of compulsory education "no guarantee for the bottom, no ceiling for the top" (3) Pay attention to the combination of teaching and practice, let students understand the internal relationship between knowledge, pay more attention to students with learning difficulties after class, and try to approve their homework (4) Design hierarchical teaching objectives for each class, and let top students answer difficult questions, so as to develop their intelligence, and choose topics and do problems after class for top students to do. Further cultivate their thinking ability. Teaching and research topics and implementation measures ① Teaching and research topics: take "designing homework suitable for students" as the research topic ② Implementation measures: In normal teaching, I often read relevant learning materials, consciously study theoretical knowledge and listen to relevant lectures to improve my theoretical level. I will teach patiently and carefully, apply the theoretical knowledge I have learned to teaching, and organize theory to combine with practical knowledge and experience to write a teaching paper V.

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