New edition of the Junior High School New Mathematics Encyclopedia, an essential book for learning the basics of mathematics. Compliant with the new curriculum guidelines. Junior High School New Mathematics Encyclopedia New Edition with Keystone Method, Separate Volume with Similar Problems and Related Tables from Textbooks Edited by Shigeru Ishitani - Publisher: Shingakusha - Price: 1,800 yen ●Features of this Mathematics Encyclopedia● ① Separate volume with related tables that allows you to quickly find similar problems and related topics from textbooks. For each problem in the textbook, similar problems and related topics in this book are indicated, allowing you to understand how to solve textbook problems. ② LTKB solution method scientifically enhances problem-solving ability. Cultivates the ability to freely utilize the four elements of mathematics learning: how to learn, how to think, keystone concepts, and basic information. ③ Flowcharts illustrating the thought process and steps for solving problems. Keystone 60 You can learn and master the thought process and steps for solving problems by looking at 60 flowcharts. ④ An encyclopedia that covers everything in junior high school mathematics. You can learn and improve your skills in all aspects of junior high school mathematics, including solutions to all kinds of problems, important points, and terminology. This is a used item. I don't remember using it, so I think I only flipped through it at the time. I didn't find any writing, but please understand if there are any oversights. Overall, there are scratches, stains, dullness, fading, page folds, etc., but the contents are clean. This is a used item stored at home, so please purchase only if you are satisfied and understand the photos. The item will be placed in a nylon bag and wrapped in newspaper for shipping. No claims and no returns, please.