With the development of 3D printing technology, the application of 3D printing in the field of education has attracted the attention of researchers. Some countries and organizations have begun to explore the educational application of 3D printing. In Digital Production: 3D Printing in Preschool Education, Federico Avanzini, Adriano Barat and Luca A. Ludovico explore the relationship between 3D printing and classroom through preschool music courses. Although music curriculum serves as a tool to show the level of educational value, researchers use it to show a rich example of the importance of music education for preschool children and the characteristics of previous studies.

There is a link between better spatiotemporal reasoning and early reading skills. Other recent studies have shown that preschool children have potential "implicit harmony knowledge". The author studies cognition, especially because it comes from sensorimotor function, which provides "paradigms" for preschool children. Smaller children learn through "perception-action in the environment" while enjoying information from other senses.

Researchers say, "It's often difficult to distinguish between exploration and play: during sensorimotor development, young children need to explore first to start playing, which is one of the most important activities they develop. By playing, children begin to explore the world and acquire and master new skills that are crucial to them. The author also reminds us of the importance of "open" in interaction, because children can create new ways to play with objects - to revel in their discoveries.

Although 3D printing can provide a lot of things, preschool children often lack the modeling skills needed to create parts and prototypes. Today, there are many different software programs developed specifically for preschool children to enable them to design and make small objects. However, when designing 3D printing education, the author realized some complexity caused by accessibility and affordability, and the need to preserve hardware space. They are also concerned that the lack of suitable materials may also be an obstacle.

(The original 3D model of the larynx and tongue)

"However, 3D printing provides young music beginners with opportunities to build low-cost and customizable teaching objects." Researchers said.

Providing model libraries helps preschool children, and it would be perfect if they could start customizing some of their own designs. Simple models can also be a good way for parents and new tutors or teachers to learn 3D design and printing. Examples may include everything from the object of sound to the actual instrument, such as percussion toys, miniature xylophones, marimbas, etc.

(3-D model of musical instrument)

"Even if it is difficult to find the scaling model of complex instruments, it can also extrude 2D contours without affecting the effect of teaching experience." In addition, 3D printed objects can facilitate early learning of organic science, that is, the science of instrumental science and its classification, including the technical aspects of how musical instruments produce sound, the researchers said.

(3-D printing of small musical instruments)

Children may also be attracted to more alternative educational pleasures, such as 3D print action figures playing their instruments together. These models may be hard to find, but they encourage children to enjoy playing musical models, especially in the form of 3D printing or figurines. Scale models and graphics can be easily adjusted in 3D printing, and different materials can also change the appearance of items.

They also include a case study of CWN, a method of coding and marking music, and the concept of a piano volume model in which details such as scale and timbre are associated with 2D geometry, etc. Solid building blocks for 3D printing can be created and placed on the floor. Ready-made building blocks should help children link shapes to music parameters.

Teacher/mentor roles are key because they help with 3D design and printing, guide children and keep them learning.

"Examples of teaching activities may include the identification of musical instruments and their sub-parts, the exploration of sound generation technology, the design and production of detecting objects, and the study of alternative forms of musical symbols." The author said.

Researchers say that in the future, proposals will be further integrated and implemented as learning practices to conduct experiments and evaluations in pre-school and extra-curricular situations.

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