Specialized books on the study of arithmetic and junior high school mathematics teaching materials. - Title 1: Research on Arithmetic Teaching Materials Edited by Shintaro Nabeshima and Yukio Tokita First edition published in Showa 30 (1955) Fifth edition published on March 1, Showa 32 (1957) - Title 2: Research on Junior High School Mathematics Teaching Materials Edited by Shintaro Nabeshima and Yukio Tokita Published on October 1, Showa 30 (1955)? Dai Nippon Tosho Co., Ltd. Those researching the history of arithmetic and mathematics education may find these interesting as old books. Please note that there are stains and yellowing. Thank you for looking.