4th grade math
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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
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