Description This workbook is published in line with the revised 2022 curriculum applied to 3rd-4th grade elementary students starting in 2025. Feel math! Another essential book on the path to becoming a top student. Choisangwi Math S helps students develop a genuine feel for and understanding of math, enabling them to solve any problem and building the foundation needed to stay ahead through middle and high school. Beyond covering textbook concepts, the book also addresses advanced concepts, helping students build a solid foundation for deeper learning. Through visual images, learners can intuitively feel and understand the core of advanced concepts. In addition, by reflecting the new curriculum, the book strengthens curriculum competencies and is carefully leveled and structured so that any student can challenge themselves to reach the top level. With a companion review book that matches 1:1 with the problems in the main text, students can repeatedly practice and build advanced mathematical thinking skills from an early stage. Table of Contents 1. Addition and Subtraction 2. Plane Figures 3. Division 4. Multiplication 5. Length and Time 6. Fractions and Decimals