In this paper, focusing on the items of communication functions and basic communication expressions presented in the revised educational curriculum in 2009, I researched and analyzed how faithfully the communication functions were reflected in the high school textbook, “Japanese I.”
Among the eight communication functions, “consideration and attitude transmission” was the highest at 18.8%, followed by “information request” at 18.4%, “dialogue progress” by 13.3%, “action request” by 12.7%, “greetings” and “offering information” were both 12.6%, “transmitting intention” was 7.8%, and “introduction” was 3.8%. They were presented in 7 different textbooks in that order. In addition, among the 57 items that the eight communication functions are subdivided into, 27 items, which correspond to about 50% of them, were commonly presented in all 7 types of textbooks, but the remaining 28 items, which are also about half, did not appear in several textbooks. Items that were not handled even once in all seven textbooks were “complains” and “warnings”.
Next, the total number of presentation of the basic communication expressions was the most numerous in textbook D with 847 times, second most in textbook C with 719 times. Also, regarding the presentation number of 199 basic communication expressions presented in the revised educational curriculum in 2009, textbook C was the largest with 101 expressions, and the second most was textbook D with 100 expressions, and textbook E was the third most with 97 expressions. Some of the 199 basic communication expressions were presented in all seven types of textbooks, and also some are presented in some textbooks, and others are not presented in any textbooks.