Grade 4 Lesson plan
Barrowgate's Mill Row Water Main: Pipe Sections and Remainders
A grade 4 lesson in the fictional town of Barrowgate where students divide a water main's length by pipe-section length and decide what each remainder means.
Common Core Math · Grade 4
4.OA.A.3 Solve multistep word problems and interpret remainders
Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Why water teaches this standard well
Students figure out how many delivery trucks are needed to haul a given number of water jugs when each truck holds a fixed load, and decide whether a leftover remainder means one more full trip is required. Interpreting the remainder in context is exactly the judgment call a water utility dispatcher makes every day.
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.
42 materials aligned to 4.OA.A.3
Lesson plans
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.
Grade 4 Lesson plan
A Day With Elmgate's Water Sampler: Measurement Math on the Route
A 50-minute grade 4 careers lesson where students act as a water sampling technician and solve measurement problems with milliliters, liters, and time.
Grade 4 Lesson plan
Rain Barrels for the Robin Lane School Garden: A Sizing Plan
A grade 4 engineering lesson where students use whole-number multiplication and division to size a rain barrel plan for a fictional school garden.
Grade 4 Lesson plan
Shower Swap at the Quimby House: Counting the Gallons Saved
A grade 4 lesson where the fictional Quimby family installs a WaterSense showerhead and students use whole-number math to find the gallons saved each week.
Grade 4 Lesson plan
A Day with a Water Plant Operator: Grade 4 Water Math
A 45-minute grade 4 lesson following a fictional plant operator's shift, where students solve multistep tank and delivery problems and interpret a remainder.
Grade 4 Lesson plan
Quillmont Garden Drip Timers: Minutes, Gallons, and Trips
A grade 4 lesson at a fictional community garden, where students convert hours to minutes, multiply a pump rate by run time, and interpret a leftover trip.
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.
Grade 4 Lesson plan
Watering the Bordray School Orchard From One Rain Barrel
A grade 4 lesson where students set criteria for a fictional school orchard's watering plan, then multiply and divide to test whether one rain barrel is enough.
Grade 4 Lesson plan
Foxglove Farm's Irrigation Gate: Two-Step Multiplication Problems
A grade 4 lesson where students multiply a two-digit flow rate by minutes, then by days, to find how many gallons an irrigation gate delivers to a farm field each week.
Grade 4 Lesson plan
Hartwell's Water Main Break: Multistep Delivery Problems
A grade 4 lesson using a fictional water main break to practice multiplying homes by cases needed, then dividing by van capacity and interpreting the remainder.
Worksheets
Grade 4 Worksheet
Redgrove's Hydrant Flushing Day: Gallons and Minutes
A grade 4 worksheet where students multiply flow rate by minutes open for four fictional fire hydrants, then compare, total, and plan the crew's schedule.
Grade 4 Worksheet
Reading the Route: A Hollyhock Water Meter Technician Worksheet
A grade 4 careers worksheet where students act as a water meter technician, subtract meter readings to find gallons used, and solve related word problems.
Grade 4 Worksheet
Duncastle Dam Fish Ladder: Counting Fish and Shift Minutes
A grade 4 worksheet at a fictional dam's fish ladder, where students find elapsed shift minutes, walking distances, and fish counts, then interpret a remainder.
Grade 4 Worksheet
Marrowick Cleaning Ponds: Multiplying Microbe Feeding Batches
A grade 4 worksheet at a fictional water cleaning pond, where students multiply paddle turns, tray scoops, and daily barrel totals and interpret a remainder.
Grade 4 Worksheet
Ravenwood Water District's Well Pump Fill-Time Worksheet
A grade 4 worksheet at a fictional water district where students multiply and divide whole numbers to find gallons pumped and how long tanks take to fill.
Grade 4 Worksheet
The Water Cart or the New Pipes: A Persimmon Crossing Choice
A grade 4 economics worksheet set about a century ago, where students compare the cost of barrel-delivered water with a fictional town's new piped water system.
Grade 4 Worksheet
Planning Tanager's Water Tower Mural: A Grid Math Worksheet
A grade 4 art-math worksheet where students size a water tower mural from a design grid, converting units and figuring paint, cost, and painting time.
Grade 4 Worksheet
Larkfield's Dry Summer: A Grade 4 Water Choices Worksheet
A grade 4 economics worksheet where students use multi-digit multiplication to compare the costs and water savings of three choices during a fictional town's dry summer.
Math problem sets
Grade 4 Math problem set
Vinefield Orchard's Water Haul: Tank Trips and Tree Blocks
Ten grade 4 problems on hauling water to a fictional orchard during a pipe repair, ending with a choice between a trailer plan and a truck plan on time and cost.
Grade 4 Math problem set
Culvermere Marsh Mussel Beds: Multiplying Gallons Filtered
A grade 4 problem set about two fictional freshwater mussel beds, where students multiply, add, and divide to find how much marsh water the mussels filter.
Grade 4 Math problem set
Stony Gap Dam Operator: Multiplication, Division, and Time Problems
A grade 4 math problem set following a dam operator who controls a reservoir gate, using multiplication, division, and time to find gallons of water.
Grade 4 Math problem set
Shepton Village's Pipe Order: Sections, Bundles, and Workdays
A grade 4 problem set where students divide a fictional village's pipe replacement into 6-foot sections, order bundles, and interpret a leftover remainder.
Grade 4 Math problem set
Ashford Pump Station: Gallons and Minutes Multiplication
A grade 4 problem set at the fictional Ashford pump station, using multi-digit multiplication to find total gallons pumped from a flow in gallons per minute.
Grade 4 Math problem set
Dunmore Drought Delivery: Division and Leftover Barrels
A grade 4 problem set where a fictional drought town divides water among streets and trucks, finding quotients and interpreting the remainder to plan extra trips.
Grade 4 Math problem set
Sample Bottles on the Lantwick Water Testing Route
Ten grade 4 problems following a fictional town's weekly water sampling route, multiplying bottles, tests, and miles and converting milliliters and minutes.
Grade 4 Math problem set
Opening the Gates at Nockford Dam: Whole-Number Problems
Nine grade 4 problems set at a fictional dam on the Varrow River, using gate release rates in gallons per minute to practice multiplication and division with remainders.
Grade 4 Math problem set
Tealwood Filter Washes: Hours, Minutes, and Seconds
A grade 4 problem set following a fictional filter plant's wash schedule, converting hours to minutes and minutes to seconds and solving two-step crew problems.
Grade 4 Math problem set
Filling the Ashgrove Water Tank: Pump Flow Word Problems
Eight multiplication and division word problems built around a fictional town's water pump, ending with a challenge problem where a full tank meets a leak.
Grade 4 Math problem set
Winding Creek Water Testing Team: Sampling and Shipping Problems
A grade 4 math problem set where a fictional student water-testing team multiplies sites by bottles and visits, then divides samples among shipping cases with remainders.
Labs & experiments
Grade 4 Lab / experiment
Archimedes Screw Pump Lift: A Grade 4 Crank-Powered Water Lab
A grade 4 lab where students build a hand-cranked spiral pump from tubing and a dowel, measure how many cups of water it lifts per crank turn, and predict a larger total.
Classroom activities
Grade 4 Classroom activity
Grindley Lift Station Cards: Area Models for Pump Totals
A grade 4 card activity where teams pair a pump card with a run-time card for four fictional sewer lift stations and build area models to find total gallons.
Grade 4 Classroom activity
Keeping Kingsbarn's Tank Above the Line: An Hourly Demand Game
A grade 4 engineering activity where teams track a storage tank hour by hour, find the hour it drops below the fire reserve, and test two design fixes.
Grade 4 Classroom activity
Wickmere's Broken Main: A Valve Shutoff Grid Game
A grade 4 engineering activity where teams choose which two valves to close after a water main break and count how many homes lose water.
Grade 4 Classroom activity
Birchwood Cleaning Steps: A Wastewater Plant Station Rotation
A grade 4 station-rotation activity where students move through five steps of a fictional wastewater plant, solving a multiplication card at each stop.
Grade 4 Classroom activity
Rushlight Creek Sampling Route: A Six-Station Rotation
A grade 4 activity where teams rotate through six creek sampling stations, then use a printed site log to total bottles and minutes and pack coolers.
Grade 4 Classroom activity
Run the Plover Flat Water Department: A Budget Game
A grade 4 budget game where teams run a fictional town's water department for two years, funding operations first and learning why savings matter when a main breaks.
Grade 4 Classroom activity
Amber Hollow Farm's Watering Rounds: Flood vs. Drip Simulation
A grade 4 hands-on activity where teams simulate flood and drip irrigation on a fictional farm field, multiplying and comparing totals to explore water conservation.
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.
Grade 4 Quiz & test questions
Hazel Ridge Water Systems Unit Test: Pumping, Trips, and Conversions
A grade 4 unit test on a fictional town's water system, mixing multiple-choice, short-answer, and computation items on multiplication, division, and unit conversion.