With the continuous progress of science and technology, 3D printing technology has gradually entered the field of education and brought revolutionary changes to teaching methods. Especially in the design and production of teaching AIDS, 3D printing has become an important tool for teachers and educators because of its flexibility, low cost and high efficiency. This paper will discuss how 3D printing is used to make teaching AIDS and its application value in practical teaching.

First of all, 3D printing provides great convenience for the production of teaching AIDS. Traditional teaching AIDS are often made by hand or mold, which is not only time-consuming and labor-intensive, but also difficult to meet the personalized and diversified needs. Through 3D modeling software (such as Tinkercad, Fusion 360, etc.), teachers can quickly design the required model according to the teaching content, and use a 3D printer to transform it into objects. This method not only saves time and cost, but also makes customized adjustments according to students' learning progress and understanding ability.

Secondly, 3D printing technology can make teaching models that are difficult to realize by traditional methods. For example, in physics teaching, teachers can print out mechanical models such as gears, pulleys and levers to help students intuitively understand the principle of action; In biology teaching, models such as cell structure and human organs can be printed out to make abstract knowledge concrete and visible; In geography teaching, you can print the terrain model to help students understand the landform characteristics and formation process.

In addition, using 3D printing to make teaching AIDS is also helpful to cultivate students' practical ability and innovative consciousness. In Project-Based Learning (PBL) or STEAM education, students can not only learn with 3D printed teaching AIDS, but also participate in the design process of teaching AIDS in person, thus enhancing their understanding of knowledge and technical application ability.

Of course, the application of 3D printing in teaching also faces some challenges, such as high equipment cost and limited operating skills of teachers. Therefore, schools should strengthen the training of teachers, improve their cognition and operation ability of 3D printing technology, and encourage interdisciplinary cooperation to jointly develop more 3D model resources suitable for teaching.

To sum up, 3D printing, as a new technology, shows great potential and advantages in the production of teaching AIDS. It can not only improve the teaching effect, but also stimulate students' interest and creativity, which is one of the important directions of future education development. With the continuous maturity and popularization of technology, I believe that 3D printing will play an increasingly important role in the field of education.