Table of Contents / Inside the Book Numbers up to 10 Addition with Small Numbers Subtraction with Small Numbers Addition and Subtraction with Small Numbers Numbers up to 50 Publisher's Review [Structure and Features] (1) Each volume is designed for one month of standard study. In Week 1, children learn the basic principles of operations at a pace of 6 pages per day. In Weeks 2-4, building on these basic principles to develop thinking skills, the pace is 4 pages per day. (2) To help children move smoothly through Weeks 2, 3, and 4, a 'Skills Check' section is included at the end of Week 1, allowing children to confirm they have solidly mastered the basic concepts and providing extra practice if needed. (3) The difficulty level is designed to gradually increase within each volume, progressing from Week 1 → Week 2 → Week 3 → Week 4, from Day 1 → Day 2 → Day 3 → Day 4 → Day 5 within each week, and from Page 1 → Page 2 → Page 3 → Page 4 within each day. (4) To support children's self-directed learning, the book includes activity stickers, worksheets, intuitive examples, and various helpful hints. (5) Bonus 1: Math Board Game Each volume includes one math board game so that parents and children can enjoy playing together while reinforcing the basic operation principles learned in Week 1. Rather than relying on tedious, repetitive drills, this fun board game helps improve both the accuracy and speed of calculations. (6) Bonus 2: Praise Stickers Recognizing that children can easily lose motivation, a space for a 'Praise Sticker' is provided in the bottom right corner of the last page of each day's lesson. Instead of a single generic phrase, the stickers come in three levels tailored to achievement — 'Excellent!', 'Great Job!', and 'Keep Trying! You Can Do It!' — to keep children motivated. (7) Bonus 3: Math Champion Certificate A certificate is included at the end of each volume to motivate children to move on to the next one. When paired with warm praise and enthusiastic applause, this certificate helps build children's confidence in math. (8) The Mathtian website (http://www.mathtian.com) offers a variety of additional learning resources, including: 1) Supplementary operation practice problems 2) Thinking-skills operation worksheets (9) The FACTO Cafe (http://cafe.naver.com/factos) provides a wealth of information and resources related to math education, including: - Free video lectures on creative thinking-skills math (FACTO) - Q&A related to published textbooks - Preparatory materials for gifted education programs (past and sample questions) - Elementary math tips and Q&A