Description: A serious introductory math book for young children. By combining numbers and shapes, this series simultaneously develops abstract, logical thinking and intuitive, sensory thinking. Thinking Preschool Math 1A: Introduction to Real Math for Preschoolers (Ages 4-6) - Part 1: Shapes - Part 2: Sets, Correspondence, Measurement Thinking Preschool Math 1B: Introduction to Real Math for Preschoolers (Ages 4-6) - Part 1: Direction, Classification, Arrangement - Part 2: Number Operations Thinking Preschool Math 2A: Introduction to Real Math for Preschoolers (Ages 5-7) - Part 1: Shapes - Part 2: Sets, Correspondence, Measurement Thinking Preschool Math 2B: Introduction to Real Math for Preschoolers (Ages 5-7) - Part 1: Direction, Classification, Arrangement - Part 2: Number Operations Thinking Preschool Math 3A: Introduction to Real Math for Preschoolers (Ages 6-8) - Part 1: Shapes - Part 2: Sets, Correspondence, Measurement Thinking Preschool Math 3B: Introduction to Real Math for Preschoolers (Ages 6-8) - Part 1: Direction, Classification, Arrangement - Part 2: Number Operations Author: Cmath Math Research Institute Recent works: , , , and 146 titles in total. About the Author: The Cmath Math Research Institute is composed of researchers passionate and talented in math education. Based on the academic characteristics of mathematics and a learner-centered educational philosophy, the institute researches and develops the best and most optimal math curricula and content to strengthen learners' mathematical thinking abilities. The institute has led the trend in math education through programs such as 'Cmath,' which popularized the concept of 'critical thinking math,' as well as the gifted program 'Gifted,' the published '1031' Math & Science series, the '1031 Gifted Assessment,' the 'Sangwigwon 960' series, the 'Sangwigwon Clever Math' series, the 'Thinking Preschool Math' series, the 'Sangwigwon Math TenTen: Exploration and Problem Solving' series, and a wide variety of multimedia math content. Thinking Preschool Math is a serious introductory math series for young children that embodies beautiful math, enjoyable math, critical thinking math, and everyday life math. By combining numbers and shapes, this teaching material simultaneously nurtures abstract, logical thinking and intuitive, sensory thinking. Mathematics is the study of numbers and space. For young children who think and understand through the shapes of objects, a math education method that combines shapes and numbers allows them to experience the essentially abstract world of mathematics in a sensory and concrete way, nurturing their potential for math and increasing their interest in it. [Set Composition] Two books for each age group (5-7 years), totaling 6 volumes. [Recommended Ages] - Thinking Preschool Math 1A: Introduction to Real Math for Preschoolers (Ages 4-6) - Thinking Preschool Math 1B: Introduction to Real Math for Preschoolers (Ages 4-6) - Thinking Preschool Math 2A: Introduction to Real Math for Preschoolers (Ages 5-7) - Thinking Preschool Math 2B: Introduction to Real Math for Preschoolers (Ages 5-7) - Thinking Preschool Math 3A: Introduction to Real Math for Preschoolers (Ages 6-8) - Thinking Preschool Math 3B: Introduction to Real Math for Preschoolers (Ages 6-8)