 We also pay attention to the comprehensive abilities of parents who are interested in it, such as their mathematical logical abilities and their sensitivity to music. We are also paying attention to these. How do you do this in general? It also includes his attention, right? How do you do this in general? From a scientific point of view, the most common use is in the global community, or for example, in the United States. In the United States, for example, two-year-old children