Primary school mathematics is a very important basic subject in compulsory education. Its teaching process is a process of participation and interaction between teachers and students. Effective mathematics teaching activities are the unity of teachers' teaching and students' learning. In addition to learning, students' hands-on practice, independent exploration and cooperative communication are also important ways of mathematics learning. Teachers' teaching should be based on students' cognitive development level and existing experience, pay attention to heuristic teaching and teach students in accordance with their aptitude, and provide students with sufficient opportunities for mathematics activities. So that students can truly understand and master basic mathematical knowledge and skills, mathematical ideas and methods, get necessary mathematical thinking training, and gain rich experience in mathematical activities. Based on the characteristics of the above subjects and the current teaching practice, the following teaching suggestions are put forward.

1, the teaching goal is to lead the navigation mark of classroom teaching. The formulation of teaching objectives must be based on the study of teaching materials and the analysis of learning situation. It is necessary to comprehensively consider the overall goal, the learning period goal, the unit goal and the class goal, and be good at reasonably decomposing the class goal into link goals.

Second, the formulation of classroom teaching objectives should focus on knowledge and skills objectives and process objectives. The description of knowledge and skill objectives should be clear, clear and detectable. The process goal should pay attention to the infiltration and implementation of mathematical thinking methods and the sustainable development of students. Goals can be described from the perspective of students' learning tasks or teachers' teaching tasks.

Article 3: Textbooks are normative texts that condense teaching experience and embody curriculum standards and teaching theories. The materials provided by textbooks are typical and representative, which is the main basis for teachers to organize teaching. Before teaching, we should study the curriculum standards and teaching materials carefully.