The development of the times and the promotion of educational reform put forward new requirements for the development of teachers. Teachers' professional development is the trend of teacher education development in the world, the international trend and the urgent task of education reform in China. As a primary school mathematics teacher in the new era, we should adapt to the requirements of the development of the times and promote our own development in the direction of specialization. How can I promote my professional development? The following are some superficial views: first, change ideas and carry forward professionalism. With the development of society and the progress of education, the traditional concept of "everyone can be a teacher" or "everyone can be a teacher easily" has been abandoned by society, and teachers are more and more respected by society. Then as a people's teacher, we should also face up to the nature of our work and have a strong sense of dignity for our profession, so as to establish a firm professional belief and carry forward the professionalism of teachers. It can be said that teachers' professionalism plays an inestimable role in the growth and perfection of teachers. According to the research, those successful teachers can always maintain an exciting spiritual strength in their work. Teachers' professional quality is one of the most important factors affecting students. Besides knowledge and morality, teachers have a very important spiritual influence on students. Teachers' professionalism can touch and inspire students' "conscience and wisdom". If students always feel the call of teachers' spiritual strength, then teachers will become the most important people in students' lives. The cultivation of teachers' professional quality depends on teachers' personal cultivation and efforts. We should constantly maintain and strengthen professional quality through self-examination, self-adjustment and self-improvement, and improve professional quality through self-cultivation. To truly integrate our education and teaching work into self-improvement, only in this way can we feel the enrichment and happiness of our work, be calm and willing to work professionally, and achieve "recognition of our mission and passion for our work". At the same time, teacher professionalization is also an important means to establish the image of teachers and enhance their status. Therefore, in the process of communicating with children, every teacher should pay attention to showing his own cultural and moral sentiments, always pay attention to infecting students with his own moral demeanor, and strive to set an example in every word and deed in front of students and establish a good teacher image. Because the teacher is a banner of the students, an encouraging look from the teacher and a caring touch will arouse ripples in the students' hearts and exert a subtle influence on them, which even exceeds the power of words. Second, strengthen study and enrich professional knowledge. 2 1 century is an information society and an era of knowledge economy. Lifelong learning is extremely important for teachers' survival and development, and teachers' development should also be a lifelong and continuous process. Therefore, we should learn to think rationally about teaching problems and make use of teaching and research activities and spare time for theoretical study, including the study of mathematics professional knowledge, the latest teaching theory, the latest teaching methods and teaching evaluation methods. So as to become a knowledgeable and knowledgeable person through continuous learning, thus facing various problems in our education and teaching. When I was teaching Year, Month and Day, there was such an episode in my class, which is still fresh in my memory. The teaching focus of this lesson is to let students know the time unit year, month and day, and correctly judge the normal year and leap year. According to the teaching objectives, I designed the teaching process and links, but there was such an unexpected episode in the actual teaching. I gave the students an exercise when they explored the judgment methods of normal year and leap year. Judging whether the next year is a normal year or a leap year:199820002005209621002400 Basically, all students can correctly judge which year is a normal year and which year is a leap year according to the judgment method. I also think there is no problem with this part of knowledge. Just as I was about to enter the next step according to the established teaching link, my classmates held up a small hand. A child stood up calmly and said, "Teacher, I think 2 100 is not a normal year, but also a leap year." When he said this, the whole class focused on him. Before I came to my senses, he went on to say, "Look, teacher, in the question you gave us, 2096 is a leap year, so according to the principle of four-year leap, shouldn't 2 100 also be a leap year?" He said with certainty that my classmates are looking at me now, and their eyes are full of doubts. I know they are waiting for my answer. However, I didn't consider this at all when preparing lessons. At that moment, I was asked speechless. So I can only say: "The teacher can't explain this problem now, because this problem also involves some astronomical knowledge. The teacher will check the information after class and tell you. " After class, I searched the library and the Internet for information, and finally found a reasonable explanation: one year is the time for the earth to go around the sun. The total length is 365 days and 1/4 days (365.2422). The solar calendar defines 365 days as one year, and the rest of the time is accumulated into one day every four years. This day plus February, there are 29 days in February this year. This year is a leap year. However, every year at 5: 48: 46, four years add up to 23: 15: 4, less than one day. With the accumulation of time, 2 100 is only one day short, so 2 100 is not a leap year. When I explained this to my classmates, the children all showed satisfaction. This episode in teaching brought me a deep feeling. We always say, "Give the students a glass of water, and the teacher should have a bucket of water". Today, with the tide of quality education sweeping across China, it seems that this sentence should be changed. It is far from enough for our teacher to have a bucket of water, because we are facing a group of children with subjective initiative, who have their own ideas and original spirit. They always bring us unexpected and unexpected problems, so our teachers should "run water". We should constantly recharge ourselves, constantly capture new scientific education information, supplement new knowledge, develop various abilities, and constantly improve our professional quality. Only in this way can we maintain our unique advantages in common sense, intelligence, and morality, consolidate the professional status of teachers, enrich our professional knowledge, and keep a steady stream of water, so that we can handle all kinds of situations in the classroom with ease and better. Third, pay attention to reflection, strengthen cooperation and exchange, and improve professional skills. Modern education is scientific, democratic and developing. The knowledge and skills it wants to impart are unprecedentedly expanded, and the requirements for the quality and efficiency of personnel training are getting higher and higher. This requires teachers to support it with systematic modern educational science and master it with skilled professional knowledge and skills. The source of teachers' professional development comes from teachers' own teaching practice and constant reflection in their practice. Therefore, as a primary school mathematics teacher in the new century, the sustainable development of this major can only be realized in the practice reflection and teaching exploration centered on problems, in the teaching reform and in the interaction of changing oneself. Dewey believes that "teachers should question teaching appropriately, instead of jumping from one teaching method to another uncritically, teachers should reflect on practice". Reflection is a self-critical attitude and method. The process of reflection is the process of teachers' self-correction and self-education, which is of great significance to promoting teachers' growth. Every teacher should be not only a researcher, but also a practitioner of reflection. Through continuous reflection, we can improve our own quality and education quality, communicate theory and practice, find and solve related problems in education and teaching, and highlight professional characteristics. In addition to their own teaching experience and reflection, daily communication and cooperation with colleagues is also an important means for math teachers to improve their professional skills. Therefore, school-based teaching and research activities must be effective. The open practice course is the most vivid case of teaching and research activities carried out by the teaching and research group. Through collective lesson preparation, collective lectures and evaluation of research courses, the wisdom of the whole group is concentrated, and discussions are carried out around topics such as the layout and utilization of teaching environment and space, the design and implementation of teaching links, and the innovation and integration of teaching methods, so as to optimize classroom teaching, solve specific problems existing in teaching and effectively improve teaching efficiency. Brainstorm and let the whole group of teachers gain something. Really combine teaching and research activities with improving classroom teaching efficiency, with solving practical problems, and with teacher growth. Make teaching and research activities truly become an important way for every teacher to develop himself professionally. Through such cooperation and exchange, teachers can jump out of their narrow space, get better professional development and achieve the purpose of improving their professional skills. In short, promoting one's own professional development is a lifelong and continuous process. As a primary school math teacher in the new century, we should look at education from the perspective of social and cultural development, enrich our professional knowledge, improve our professional skills, carry forward our professionalism and promote our professional development through constant self-charging!