Being based on the viewpoint of the language development, we will discuss where the sense of values judging "usefulness" comes from. We will find some similarity in the developments of the languages of Europe and Japan. From that viewpoint we will analyze how the Japanese introduced the letter from China in ancient time and changed it from hieroglyph to phonotype. In a society or in a human race the language is categorized to three groups, home language, social language and writing language.

more »

... erring the historical developments of a number of societies, it is seen that the coincidence of those three is necessary for the innovation. The goal is to see the role of Mathematics and Mathematical education in the Japanese society in relation with the globalization.