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  3. Geometry
  4. Triangles
  5. Interior and Exterior of a Triangle
Grade 6
1. Large Numbers (7-Digit to 9-Digits)
2. Roman Numerals (up to 1000)
3. Whole Numbers
4. Integers
5. Factors and Multiples
6. Fractions
7. Decimals
8. Simplification
9. Ratio and Proportion
10. Unitary Method
11. Algebraic Expressions
12. Linear Equations in One Variable
13. Mensuration
14. Geometry
14.1. Understand the Basic Terms in Geometry (Point, Line, Line Segment, Ray, and Plane)
14.2. Count the Number of Line Segments
14.3. Types of Lines
14.4. Collinear and Non-Collinear Points
14.5. Angle
14.6. Triangles
14.6.1. Introduction to Triangles
14.6.2. Congruent Triangles
14.6.3. Interior and Exterior of a Triangle
14.6.4. Types of Triangles by the Lengths of Sides
14.6.5. Types of Triangles by Angles
14.6.6. Count the Number of Triangles
14.6.7. Angle Sum Property of a Triangle
14.7. Curve
14.8. Polygon
14.9. Quadrilateral
14.10. Circle
15. Three Dimensional (3-D) Shapes
16. Linear Symmetry
17. Data Handling

Grade 6 S Korea School Math Interior and Exterior of a Triangle

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