Description: From the basic concepts of solid shapes to surface area and volume—master it all in one book with 『Miracle Special Lecture: Solid Shapes Unfolding Right Before Your Eyes』. ▶ Study Elementary Geometry 'Logically' Starting in 3rd grade, students begin learning the definitions, properties, and formulas of shapes, stepping fully into the world of geometry. Rather than memorizing blindly, this book encourages logical thinking by reasoning through statements like "If A, then B," expanding students' understanding step by step. ▶ Remember Just 3 Things: Definitions, Properties, and Formulas Definitions, properties, and formulas can seem so obvious at first glance that students often skim past them without truly understanding. This bad habit prevents the foundation of logical thinking from ever being built. Here's how to properly study definitions, properties, and formulas in elementary geometry: • Definitions are terms and symbols already established in mathematics. First remember them as visual concepts introduced in the lessons, then memorize the precise mathematical language. • Properties are the characteristics and rules that emerge from definitions—visible when carefully observed. With guidance from Teacher Gijeok's explanations, students can firmly grasp them based on mathematical logic. • Formulas are facts proven from definitions and properties, expressed using letters or symbols. No blind memorization here! Once students understand how a formula is derived, it naturally sticks in memory. ▶ Lecture + Review: Understand the Concept First, Then Apply It Through Practice With daily lessons combining a special lecture and review, students first understand core concepts and principles through Teacher Gijeok's lively instruction, then reinforce their skills by applying what they've learned through review problems—leading to complete mastery.