Grade 4 Lesson plan
Bricklow Dam's Power Log: Multiplying and Rounding Big Totals
A grade 4 lesson at a fictional hydropower dam where students multiply hourly output by hours run, then round four-digit totals for the daily report.
Common Core Math · Grade 4
4.NBT.A.3 Round multi-digit whole numbers
Use place value understanding to round multi-digit whole numbers to any place.
Why water teaches this standard well
Students round a reservoir's exact gallon count to the nearest thousand to make it easier to report and compare from month to month. Rounding large water totals to a sensible place value is a habit every water report and news summary relies on.
Materials tagged with this code are written to the full standard , and each carries a written note explaining the alignment. See how we review materials.
10 materials aligned to 4.NBT.A.3
Lesson plans
Grade 4 Lesson plan
Wardlow Reservoir's Hot Week: Water Lost to the Air
A grade 4 lesson on evaporation from a fictional reservoir, where students multiply daily losses across a week and round the totals for a town report.
Grade 4 Lesson plan
Wexford Well Field Report: Rounding Big Gallon Totals
A 40-minute grade 4 lesson where students round a fictional well field's large gallon totals to the nearest ten, hundred, and thousand for a monthly report.
Worksheets
Grade 4 Worksheet
Ottercomb Isle's Water Barge: Sharing, Filling, and Rounding
A grade 4 worksheet where students divide a fictional island barge's daily fresh-water output among villages and tanks, interpret remainders, and round totals.
Grade 4 Worksheet
The Velasco Family Well Test Report: Rounding the Numbers
A grade 4 worksheet in which students round the results on a fictional private-well lab report to build the family's yearly summary card.
Grade 4 Worksheet
Spindrift Bay Refill Station: Rounding Recycled Water Totals
A grade 4 worksheet where students round a fictional coastal town's recycled water totals to the hundred, thousand, and ten thousand, then divide totals evenly.
Math problem sets
Grade 4 Math problem set
Hadley Water Bills: Money, Gallons, and Rounding
A grade 4 problem set: students work out fictional Hadley water bills from a flat fee and a charge per 1,000 gallons, then round the yearly totals.
Grade 4 Math problem set
Granite Falls Treatment Plant: Pumping, Dividing, and Rounding Gallons
A grade 4 math set where students multiply a pump's flow rate by minutes and days, divide totals among tanks, and round results for a fictional plant's report.
Quizzes & test questions
Grade 4 Quiz & test questions
Halesford Water Department: A Grade 4 Water Math Quiz
A grade 4 quiz for the fictional Halesford Water Department, mixing multiple-choice, short-answer, and computation items on conversion, multiplication, and rounding.
Grade 4 Quiz & test questions
Hobbsville Public Works Quiz: Storm Drains and Plant Pumps
A 30-point grade 4 quiz on a fictional public works week, mixing unit conversion choices, multi-digit multiplication, rounding, and short written answers.