授業の合間に、
生徒「先生、新課程の赤チャートは何時出るのですか。」と質問される。
「今年の12月には、発売される予定だよ。」
生徒「赤チャートのレベルは高いですか。難しいですか?」
「結構詳しく書いてあり、説明も丁寧で分かりやすいですね。」
生徒「先生は、赤チャートやりましたか。」
「やりましたね。」
といった、会話が最近ありました。
チャート式について、より詳しく知りたい方は、
星野華水による”チャート式”の起源と特徴
The Origin and Features of the CHRAT System Developed by
Hoshino Kasui
を参照ください。
HOSHINO Kasui (1885-1939), who graduated in mathematics from Tokyo Higher Normal School, wrote and published The Study of Geometry by the CHART System, a math study book for entrance exams, in 1929. Since then, the study books, which are named CHART System, have been published for over 75 years. Therefore, it can be said that the CHART System is an established method of study used in study books. However, there exists no previous research on the CHART System or its founder, HOSHINO Kasui. This paper clarifies the following two points: 1) Origin of the CHART System: The CHART System was developed by Hoshino Kasui in cooperation with his business involving the publication of a monthly magazine and several study books for entrance exams as well as through his managing and teaching experiences in a cramming school. 2) Features of the CHART System: The features of the CHART System become evident upon comparing the solution provided by Hoshino and that provided by a previous study book with regard to the same question. Hoshino led students to the solution by providing CHARTs, which were precepts based on solution scenarios that did not require dependence on rare inspiration. Hoshino's CHART System, which he extracted from numerous solution scenarios, was the first step in the compilation of solutions to questions in study books into a manual.
収録刊行物
科学史研究. 第II期 45(240), 209-219, 2006-12-26
日本科学史学会