First grade
Second grade
Third grade
Fourth grade
fifth grade
First Grade
number & operations
ADDITION & SUBTRACTIOIN
Single-Digit Numbers
Second Grade
NUMBER & OPERATIONS
ADDITION & SUBTRACTIOIN
2-Digit Numbers
problem 7: Who has the cleanest car?
problem 22: Apple vs. Hamburger: Which takes more water to produce?
problem 24: How can I save water?
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problem 7: Who has the cleanest car?
problem 43: Do we use lots of energy?
multiplication & division
problem 23: How much water do I use?
data analysis
bar graphs
1-Digit Numbers
problem 12: What makes harmful gas?
2-Digit Numbers
problem 7: Who has the cleanest car?
Circle graphs
problem 42: Our na energy sources (number comparison)
Third Grade
Number & operations
ADDITION & SUBTRACTIOIN
2-Digit Numbers
problem 7: Who has the cleanest car?
problem 22: Apple vs. Hamburger: Which takes more water to produce?
problem 24: How can I save water?
3-Digit Numbers
problem 14: How big is our harmful gas? (using bar graphs)
problem 18: How is our water used?
problem 22: Apple vs. Hamburger: Which takes more water to produce?
problem 46: What state produces the most coal?
problem 53: Wind race U.S. vs. China
NUMBER COMPARISON
problem 18: How is our water used?
problem 46: What state produces the most coal?
problem 53: Wind race U.S. vs. China
ROUNDING
problem 46: What state produces the most coal?
Ordinal numbers
problem 14: How big is our harmful gas? (using bar graphs)
place value
problem 21: How long is our Ohio River?
problem 46: What state produces the most coal?
MULTIPLICATION & DIVISION
problem 7: Who has the cleanest car? (half & double)
problem 22: Apple vs. hamburger – which takes more water to produce?
problem 23: How much water do I use? (1 digit x 1 digit)
problem 23: How much water do I use? (2 digits x 1 digit)
data analysis
BAR GRAPHs
1-Digit Numbers
problem 12: What makes harmful gas?
2-Digit Numbers
problem 7: Who has the cleanest car?
3-digit numbers
problem 14: How big is our harmful gas? (using ordinal numbers)
problem 14: How big is our harmful gas? (using addition & subtraction)
Circle graphs
problem 30: What makes our trash?
problem 42: Our nation’s energy sources (number comparison)
problem 42: Our nation’s energy sources (converting percents to fractions)
FOURTH GRADE
number & operations
ADDITION & SUBTRACTIOIN
3-Digit Numbers
problem 14: How big is our harmful gas? (using bar graphs)
problem 18: How is our water used?
problem 22: Apple vs. Hamburger: Which takes more water to produce?
problem 53: Wind race U.S. vs. China
4-Digit Numbers
problem 1: Our path to cleaner air
problem 41: The history of our energy
6-Digit Numbers
problem 46: What state produces the most coal?
Decimal numbers
problem 48: Our electricity price–high or low?
problem 49: Solar energy in our country
Number Comparison
problem 18: How is our water used?
problem 46: What state produces the most coal?
problem 53: Wind race U.S. vs. China
Decimal numbers
problem 48: Our electricity price–high or low?
Ordinal numbers
problem 14: How big is our harmful gas? (using bar graphs)
ROUNDING
problem 46: What state produces the most coal?
Decimal numbers
problem 49: Solar energy in our country
PLACE VALUE
problem 46: What state produces the most coal?
<,>&= SYMBOLS
problem 48: Our electricity price–high or low?
PERCENTAGEs, FRACTIONs & DECIMALs
problem 38: How much bottles is recycled? (converting percentages to fractions & decimals)
MULTIPLICATION & DIVISION
problem 7: Who has the cleanest car? (half & double)
problem 7: Who has the cleanest car?
problem 22: Apple vs. hamburger – which takes more water to produce? (2 digits x 1 digit)
problem 23: How much water do I use? (2 digits x 1 digit)
Multiples of 10
problem 55: How much energy & money do new light bulbs save?
PROBABILITY AND STATISTICS
MEAN, Median, MODE & range
problem 19: Do you think we use lots of water?
data analysis
LINE GRAPHs
Numbers up to 250
problem 27 : How much trash does our country produce?
BAR GRAPHs
problem 7: Who has the cleanest car?
problem 12: What makes harmful gas?
problem 14: How big is our harmful gas? (using ordinal numbers)
problem 14: How big is our harmful gas? (using addition & subtraction)
problem 18: How is our water used?
problem 19: Do you think we use lots of water?
problem 35: why is it better to recycle aluminum cans?
problem 38: How much bottles is recycled?
problem 46: What state produces the most coal?
Double bar graphs
problem 24: How can I save water?
Circle graphs
problem 18: How is our water used?
problem 43: Do we use lots of energy?
problem 30: What makes our trash?
problem 42: Our nation’s energy sources (converting percents to fractions)
Fifth Grade
number & operations
ADDITION & SUBTRACTIOIN
3-Digit Numbers
problem 22: Apple vs. Hamburger: Which takes more water to produce?
problem 53: Wind race U.S. vs. China
4-Digit Numbers
problem 1: Our path to cleaner air
problem 41: The history of our energy
Decimal Numbers
problem 49: Solar energy in our country
problem 48: Our electricity price–high or low?
NUMBER COMPARISON
problem 46: What state produces the most coal?
problem 53: Wind race U.S. vs. China
Decimal number
problem 48: Our electricity price–high or low?
ROUNDING
Decimal numbers
problem 49: Solar energy in our country
PLACE VALUE
problem 46: What state produces the most coal?
Symbols
problem 48: Our electricity price–high or low?
PERCENTAGEs, FRACTIONs & DECIMALs
problem 30: What makes our trash? (converting percentages to fractions & decimals)
problem 38: How much bottles is recycled? (converting percentages to fractions & decimals)
MULTIPLICATION & DIVISION
problem 7: Who has the cleanest car?
problem 22: Apple vs. hamburger – which takes more water to produce? (2 digits x 1 digit)
problem 23: How much water do I use? (2 digits x 1 digit)
Multiples of 10
problem 55: How much energy & money do new light bulbs save?
PROBABILITY AND STATISTICS
MEAN, Median, MODE & range
problem 19: Do you think we use lots of water?
data analysis
LINE GRAPHs
Numbers up to 250
problem 27 : How much trash does our country produce?
BAR GRAPHs
2-Digit Numbers
problem 7: Who has the cleanest car?
problem 35: why is it better to recycle aluminum cans?
problem 38: How much bottles is recycled?
3-Digit Numbers
problem 18: How is our water used?
problem 46: What state produces the most coal?
4-Digit Numbers
problem 19: Do you think we use lots of water?
Double bar graphs
problem 24: How can I save water?
Circle GRAPHs
problem 18: How is our water used?
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