Abstract

Let's read the storybook and learn math.　The main characters, Kururu and Kororo, are very close friends.　They measure the length of various things with their hands and fingers.　This book also includes mathematics columns and four-frame manga.

Author’s Information

（MATSUMOTO Satomi）She was born in Hyogo prefecture. She graduated from Doshisha Women's University, Faculty of Home Economics. .. She is a member of the Japan Children's Literature Association.

（Tomoko Hirasawa）She was born in Tokyo. She graduated from Musashino Art University, Department of Visual Communication Design. She is widely active in illustrations and design."