About the notation/expression of electricity fields in junior high school technology classes

Abstract

The text from junior high school technology text books was entered into a text-data base, and a statistical investigation regarding the notation and expression contained within was performed. In the statistical investigation, we also deliberated the contents, the length of the sentences and the clauses between commas. Although the result of the Chinese character investigation was insufficient, it is possible to see the difference in the expression being used in the text books of the two publishers. Results from the two publishers' text books: (1) On the surface, there is no significant difference. (2) Kairyudo company's book is written in a colloquial style and Tokyo-syoseki company's book is written in a more modest style. (3) The length of the sentences does not differ between the text books of the two companies. (4) Kairyudo company's book takes a serious view of the subject, and the process of investigating its subject. In the Tokyo-shoseki company's book, from the frequency of use of the words "use" "being used", it takes a serious view of machinery and tools and the available use of electricity.