Description Book Introduction [Book] This Is Geometry, Faster and Stronger B1: Various Shapes (Elementary Grade 2) Before beginning geometry study, this book first builds self-directed learning attitudes by sparking interest and motivation. It then forms intuitive concept understanding through visual recognition of the topic, presenting diverse examples so that concepts are not limited to standardized shapes and positions. Next, through a variety of problems, students apply and utilize the concepts they've learned, improving mathematical thinking skills and solidifying their understanding. Through concrete and mental manipulation activities such as drawing, measuring, and moving, students can check whether correct concepts have been formed and improve their spatial sense. Finally, based on what they've learned, challenge problems that enhance thinking and problem-solving skills help raise their skill level another notch. Through this 5-step learning process of [Preparation → Concept → Practice → Manipulation → Challenge], students can genuinely strengthen their geometry skills. [Book] This Is Geometry, Faster and Stronger B2: Building Blocks (Elementary Grade 2) Before beginning geometry study, this book first builds self-directed learning attitudes by sparking interest and motivation. It then forms intuitive concept understanding through visual recognition of the topic, presenting diverse examples so that concepts are not limited to standardized shapes and positions. Next, through a variety of problems, students apply and utilize the concepts they've learned, improving mathematical thinking skills and solidifying their understanding. Through concrete and mental manipulation activities such as drawing, measuring, and moving, students can check whether correct concepts have been formed and improve their spatial sense. Finally, based on what they've learned, challenge problems that enhance thinking and problem-solving skills help raise their skill level another notch. Through this 5-step learning process of [Preparation → Concept → Practice → Manipulation → Challenge], students can genuinely strengthen their geometry skills. [Book] This Is Geometry, Faster and Stronger B3: Shape Puzzles (2) (Elementary Grade 2) Before beginning geometry study, this book first builds self-directed learning attitudes by sparking interest and motivation. It then forms intuitive concept understanding through visual recognition of the topic, presenting diverse examples so that concepts are not limited to standardized shapes and positions. Next, through a variety of problems, students apply and utilize the concepts they've learned, improving mathematical thinking skills and solidifying their understanding. Through concrete and mental manipulation activities such as drawing, measuring, and moving, students can check whether correct concepts have been formed and improve their spatial sense. Finally, based on what they've learned, challenge problems that enhance thinking and problem-solving skills help raise their skill level another notch. Through this 5-step learning process of [Preparation → Concept → Practice → Manipulation → Challenge], students can genuinely strengthen their geometry skills. Table of Contents B1 Issue 1: Understanding Circles, Triangles, and Squares Issue 2: Exploring Tangram Pieces Issue 3: Understanding Angles Issue 4: Pattern Blocks B2 Issue 1: Shapes Built with Building Blocks Issue 2: Observing Built Shapes Issue 3: Counting Building Blocks Issue 4: Building Block Puzzles B3 Issue 1: Folding and Cutting Colored Paper Issue 2: Dividing Shapes Issue 3: Twig Puzzles Issue 4: Polyomino Puzzles