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Grade 4
1. Numbers (5-Digit and 6-Digit)
2. Roman Numerals (up to 100)
3. Addition
4. Subtraction
5. Addition and Subtraction
6. Multiplication
7. Division
8. Factors and Multiples
9. Patterns
10. Rounding Numbers
11. Fractions
12. Decimals
13. Money
14. Measurement
15. Unitary Method
16. Geometry
16.1. Understand the Basic Terms in Geometry (Point, Line, Line Segment, Ray, and Plane)
16.2. Measure Line Segments
16.3. Identify and Count the Number of Line Segments
16.4. Types of Lines
16.5. Polygons
16.5.1. Understanding Polygons
16.5.2. Name the Polygon
16.5.3. Introduction to Plane Shapes (Rectangle, Square, Circle, and Triangle)
16.5.4. Count the Vertices and Sides of a Plane Shape
16.5.5. Compare Vertices and Sides of Different Plane Shapes
16.6. Circle
17. Perimeter of Rectilinear Figures
18. Solid Shapes (3-D shapes)
19. Symmetry
20. Time
21. Data Handling

Grade 4 S Korea School Math Polygons

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