4th Grade Math

4th Grade MathTexas Korea

Topic Texas Grade

KoreaGrade

Big Numbers 4 4

Add & Subtract to Solve Problems 4 3Organize, Display and Interpret Data 4 3Apply Multiplication & Division Facts 4 4Multiply Whole numbers 4 3Divide by One-Digit Numbers 4 3Order of Operations 6 4Identify & Describe Geometric Figures 4 3Angles 6 4Triangles 6 4

Topic Texas Grade

Korea Grade

Understand and Develop Spatial Reasoning 4 4Measure Length, Perimeter, Area, & Temperature 4 2-4Measure Capacity, Weight/Mass, and volume 4 4Time 3 3, 4Describe & Compare Fractions 4 4Fractions 5, 6 4Use Place Value to Represent Decimals 4 4Add & Subtract Decimals 4 4Estimation 4 4Line Graphs 5 4Search for Methods of Solving Problems 4 4

Texas• Grade 4:

– Whole numbers through 999,999,999

• Grade 5: – Whole numbers through

999,999,999,999

Korea• Grade 4:

– Whole numbers through 9,999,999,999,999,999

Country Budget

Big Numbers

Korean Money

http://en.wikipedia.org/wiki/South_Korean_won

1 US dollar = 1117.32 Korean Won Nov 5, 2011

Oops!

Naming Numerals

Texas

Korea

Naming NumeralsThe grouping of large numbers in Korean follows the Chinese tradition of myriads (10000).

0 yeong 104 man1 il 108 eok10 ship 1012 jo100 baek 1016 gyeong1000 cheon 1020 hae

Problems involving money

Multiplication & Division

Texas• Review multiplication facts

to 12x12 from Grade 3

• Multiply two digits times two digits

• Divide one digit into three digits

• Multiply by 10 and 100

Korea• No review of multiplication

facts. Taught in Grade 2

• Multiply four digits times two digits

• Divide two digits into three digits

• Multiply by 10, 100, and 1000

Multiplication - Texas

Multiplication - Korea

Multiplication - Korea

Division - Texas1 digit divisors by 3 digit dividends

Division - Texas1 digit divisors by 3 digit dividends

Division - Korea

• Computational algorithm• Not much explanation• 2 digit divisors by 3 digit

dividends

Order of operationsTexas: This is done in 6th grade.

Elapsed Time - Texas

Elapsed Time - Korea

MeasurementsTexas Korea

Measurement – US Customary

Measurement – US Metric

Parallel & Perpendicular Lines - Texas

Parallel & Perpendicular Lines - Korea

Parallel & Perpendicular Lines - Korea

Parallel & Perpendicular Lines - Korea

Angles

Texas

Korea

Geometry - Texas

Fractions

Texas

Korea

Mixed NumbersTexas Korea