Description by Volume (Week) G1 Volume, Weeks 1–4 - Skip counting, comparing the size of two numbers - Understanding 10,000 - Addition and subtraction of three-digit numbers - Mixed calculations with three numbers - Concept of angles, reading angles, size of angles (degrees) - Understanding right triangles, rectangles, and squares - Creative thinking activities - Sample competition questions - Review test - Achievement test G2 Volume, Weeks 1–4 - Division and subtraction expressions - Finding the quotient in division - Moving a given picture in various directions - Explaining how a given picture was moved - Calculating (tens) × (ones) - Calculating (two-digit number) × (two-digit number) - Creative thinking activities - Sample competition questions - Review test - Achievement test G3 Volume, Weeks 1–4 - Dividing equally - Whole and parts - Writing and reading fractions - Understanding unit fractions - Understanding units of length - Addition and subtraction of lengths - (Time) ± (duration) = (time) - (Duration) ± (duration) = (duration) - Creative thinking activities - Sample competition questions - Review test - Achievement test G4 Volume, Weeks 1–4 - Addition and subtraction of three numbers - Mixed calculations with three numbers - (Three-digit number) × (one-digit number) - (Four-digit number) ± (three- or four-digit number) - (Two-digit number) × (two-digit number) - Center and radius of a circle - Diameter of a circle - Shapes reflected in a mirror - Creating patterns based on rules - Creative thinking activities - Sample competition questions - Review test - Achievement test G5 Volume, Weeks 1–4 - Calculating (two-digit number) ÷ (one-digit number) - Checking and applying division - Units of volume (capacity) - Traditional Korean units of measurement - Addition and subtraction of volume - Understanding parts of a whole - Understanding fractions and decimals - Comparing the size of decimals - Creative thinking activities - Sample competition questions - Review test - Achievement test G6 Volume, Weeks 1–4 - Bar graphs and tables - Picture graphs - Comparing bar graphs and picture graphs - Finding patterns - Solving problems by finding patterns - Solving problems through estimation - Explaining the problem-solving process - Creative thinking activities - Sample competition questions - Review test - Final test