Description 1. Three-Digit Numbers 2. Various Shapes 3. Addition and Subtraction 4. Measuring Length 5. Classifying 6. Multiplication

✐ Unit Introduction Each unit opens with an engaging overview of the historical background, meaning, context, or real-life examples related to the topic, helping students build the broad background knowledge needed for advanced-level learning. ✐ Basic Concept Goes beyond textbook concepts to cover practical concepts, connected concepts, cautionary concepts, and critical-thinking concepts, laying a solid foundation for in-depth study. ✐ Basic Test Before diving into advanced study, students apply the concepts they've learned to check their understanding. ✐ Math Topic Students work through carefully selected representative advanced problem types, improving their problem-solving and critical-thinking skills. ✐ Level Up Test By solving a variety of advanced problems beyond the representative types, students learn strategies and methods for tackling difficult questions, taking another step toward becoming a top-level learner. ✐ High Level Students tackle high-level problems similar to those found in outside academic competitions, challenging themselves to reach the top 3%. In-school competition-style questions by unit Tests designed to build the critical thinking skills needed for standardized exams