表4 背 表1 Practice Book for Practice Book for Mathematics Grade Mathematics 1 Grade 1 Practice Book for Mathematics was developed by the Japan International Cooperation Agency (JICA) for providing educators with mathematics practice questions, which can be used for developing mathematics learning materials such as textbooks. This book is also intended for studentsʼ individual learning. This book covers all of the contents taught at elementary school in Japan and is based on the Japanese mathematics curriculum. It is JICAʼs hope that this book will improve the quality of mathematics education all around the world. * This book was developed under the supervision of Hiroshi Tanaka (Founder of Class / People <jyugyou / hito> School < a school focused on the further development of teachers >, Former Vice Principal of Elementary School attached to University of Tsukuba, Former Chairperson of National Mathematics Lesson Study Association). March, 2022 180 JICA_1年_本誌_P180奥付.indd 180 2022/02/28 19:14:48 JICA_1年_本誌_P180奥付.indd 181 2022/02/28 19:14:48