First, making and using teaching AIDS can deepen understanding and cultivate students' various abilities.

Using visual teaching AIDS in concept teaching can make students have a complete understanding of the occurrence, development and formation of knowledge, which not only deepens students' understanding and memory, lays a solid foundation for application, but also cultivates students' thinking ability and imagination ability. For example, if students are only required to remember "surface area =2× bottom area+lateral area" in the teaching of the second volume of the sixth grade, they will only get "dead knowledge" and their understanding of the content is only one-sided. Therefore, teachers can solve this problem by designing and making relevant teaching AIDS with students.

The teacher gave the students a task in advance, and asked them to make a cylinder and an expanded diagram of a cylinder in advance. In class, students can find the relationship between the cylinder and the unfolded diagram by comparison, so that the surface area of the cylinder =2× bottom area+lateral area (bottom circumference× height). In this way, students can begin, observe, think and imagine, and the solution of cylinder surface area can be explored by students themselves, which makes it much easier for students to understand.

Second, skillfully use self-made teaching AIDS to optimize classroom teaching

Teaching AIDS are a good helper for students to learn and a good assistant for teachers to teach. Teaching practice has proved that the clever use of teaching AIDS can solve many abstract problems in teaching, which is beneficial to students' understanding of knowledge and optimization of classroom teaching. For example, in the lesson "Sum of Interior Angles of Triangle", it is really not easy to explain that the sum of interior angles of any triangle is 180. To this end, I ask students to talk about the sum of the internal angles of a triangle prepared by themselves in class (most students use the measurement method). Then I guide the students: "Can you put the three corners together in the form of sum and observe?" Students cut, spell and assemble the three corners of a triangle to make a plane. Finally, through observation and previous knowledge, they came to the knowledge that the sum of the internal angles of the triangle is equal to 180. In this way, the students moved their hands and brains. Students begin, explore and cooperate, and knowledge is accepted in the activities, so the classroom is really optimized.

Third, self-made teaching AIDS can make up for the shortcomings of existing instruments.

In today's teaching process, many new teaching instruments have been introduced, but in the actual teaching process, we always find many shortcomings. For example, sometimes the number of teaching AIDS is insufficient and the types are incomplete, which can not fully meet the needs of experimental teaching, or some teaching AIDS are not easy to operate and cannot play a good demonstration role. This requires teachers to dare to discover and create, and make up for the shortcomings of existing teaching instruments through self-made teaching AIDS. For example, in the teaching process, I once assembled a simple compass with a wooden stick. Due to the limited teaching AIDS in the school, all the teachers borrowed compasses, but the accuracy of the compasses in my hand is obviously very low. In order to promote students to know more about the circle and form serious study habits, I prepared some sticks and wire myself after class. After carefully observing the compass of the teaching aid, I made a model through accurate measurement, and made a compass teaching aid step by step according to the model, which not only exercised my hands-on ability, but also set an example for students to learn. Similarly, this method has also been promoted with the strong encouragement of schools, and the production of teaching AIDS has also been rapidly promoted in schools.

Fourth, self-made teaching is conducive to improving the overall quality of teachers.

Facts have proved that in the actual teaching of primary school mathematics, the process of making teaching AIDS can not only meet the actual needs in the teaching process, but also meet the requirements of cultivating, inspecting and improving the comprehensive quality of teachers and students. If teachers want to make teaching AIDS suitable for actual teaching needs through their own efforts, they must do the following: First, they should pay attention to the teaching materials and thoroughly understand the essence of the problems in the teaching materials; Secondly, we should pay attention to students and study their cognitive psychological characteristics and thinking characteristics at a specific age; Third, we should pay attention to teaching AIDS. Teachers must be proficient in the functions and performance of the existing teaching AIDS, and also understand that in addition to the existing teaching AIDS, teaching AIDS need to be supplemented. Fourth, pay attention to materials, and always want to know which materials are easier to use; Finally, teachers should pay attention to skills and methods, expand their professional knowledge through their own efforts, and have expertise in the field of mathematics. Therefore, the process of making teaching AIDS is the process of improving teachers' comprehensive quality. Every time a teacher designs sketches, makes components and completes a teaching aid through his own efforts, he needs to devote himself wholeheartedly and pay great patience.

In short, in today's diversified education era, the teaching mode of relying only on a blackboard, a piece of chalk and a lesson plan is gone forever. Nowadays, teachers with high comprehensive quality are needed. Therefore, as long as we teachers are brave in thinking, diligent in doing things, and promote the activities of self-made teaching AIDS, we will certainly be able to do the activities of self-made teaching AIDS in mathematics teaching better and better, and better serve the educational cause of the motherland.