Education The ultimate study method that has produced 30 children who are the best in mathematics in Japan, derived from the study data of 3 billion elementary school students
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 単行本(実用) 教育 小学生30億件の学習データから導かれる 算数日本一のこども30人を生み出した究極の勉強法