Description 1. Four-Digit Numbers 2. Multiplication Tables 3. Measuring Length 4. Time and Clock Reading 5. Tables and Graphs 6. Finding Patterns ▶ Main Workbook 1. Understanding Textbook Concepts The core concepts from the textbook are explained in detail, with practice problems designed to help students understand each concept. Supplementary explanations are included next to each problem so students can recall and organize the concept once more while solving. Connected concepts from previous units or grades are also included to help link prior learning. 2. Building Basic Skills Concept-focused practice problems help build a strong foundation and prepare students to improve their skills. These include the latest question types based on the new curriculum, as well as new-style descriptive (written-response) questions, helping students solidify their basic skills. 3. Developing Applied Problem-Solving Skills Real math ability comes from solving applied problems that build problem-solving power. Carefully selected advanced-level problem types are provided for each unit, allowing students to complete their skills by repeatedly practicing similar advanced problems. 4. Unit Assessments To wrap up each unit, two rounds of assessments are provided, ranging from basic to applied levels. Problems that frequently appear on school tests have been carefully selected, making this workbook ideal for preparing for regular quizzes and school exams. ▶ Supplementary Skill-Building Booklet - Students can prepare for descriptive (written-response) questions by practicing step-by-step, starting with guided writing exercises. - A second round of unit assessments (Round 1 and Round 2) allows students to review and check their skills once more.