Grade 7 Math problem set
Blending Peckhaven's Two Wells: A Grade 7 PFAS Mixing Set
Students weight each well's PFOA level by its share of the blended flow, compare that result to a plain average, and find the percent drop needed to meet the limit.
Water Math · Grade 7
Students practice grade-level mathematics on real utility quantities such as flow rates, tank volumes, and water bills, using the same formulas that appear on operator licensing exams.
77 materials written for this grade · refine by type, topic, or standard in the catalog
Grade 7 Classroom activity
Sizing Brackenridge Rain Gardens: A Grade 7 Station Activity
A grade 7 station-rotation activity where groups compute roof runoff and size rain gardens for a fictional campus, using proportional reasoning and a runoff rule.
Grade 7 Lesson plan
Brill Hollow's Tiered Water Bill: Computing Charges and Percents
A 50-minute grade 7 lesson where students compute tiered water bills for a town and explain why higher tiers charge more per gallon to encourage conservation.
Grade 7 Quiz & test questions
Byrne Hollow Farm Irrigation Records: A Grade 7 Math Quiz
A 25-point quiz on one fictional farm's records, mixing complex-fraction pump rates, percent decrease in nitrogen runoff, and a probability drawn from field samples.
Grade 7 Quiz & test questions
Cattail Bend Water Testing: A Grade 7 Sampling Quiz
A grade 7 quiz mixing multiple-choice, short-answer, and computation items on random sampling, inference, and probability for a fictional lake's water tests.
Grade 7 Worksheet
Cobalt Springs Dam Reservoir: A Grade 7 Percent-Change Worksheet
A grade 7 worksheet using a fictional dam's reservoir storage to practice percent of capacity, percent increase, and percent decrease across a season.
Grade 7 Classroom activity
Coldbrook Operator for a Day: A Grade 7 Rate-Station Activity
A grade 7 station rotation where teams solve proportional and complex-fraction rate problems at five stops in a fictional water plant, recording answers as they go.
Grade 7 Lesson plan
Cottersall's Aquifer and Reuse Plan: A Grade 7 Proportion Lesson
A 45-minute lesson where students find the constant linking pumping to aquifer drawdown, write its equation, and test whether a reuse plant closes the yearly deficit.
Grade 7 Math problem set
Dellmoor Booster Pumps: A Grade 7 Proportional-Rate Problem Set
A grade 7 set where students test proportionality, find a pump's flow rate as a constant of proportionality, and compute complex-fraction rates for a fictional station.
Grade 7 Math problem set
Dunmore Reclamation Plant: A BOD Percent-Removal Problem Set
A grade 7 problem set at the fictional Dunmore plant, where students find the percent of waste removed across treatment stages and check it against the standard.
Grade 7 Worksheet
Ebbstone's Cast-Iron Mains: A Grade 7 Unit-Rate Worksheet
Students compute crew unit rates from ratios of fractions, convert miles of old pipe to feet, and track signed changes in the pipe still left to replace.
Grade 7 Math problem set
Foxglove Pump Station Flow Rates: A Grade 7 Unit-Rate Set
A grade 7 problem set where students compute unit rates from ratios of fractions for a fictional pump station's flows, then compare and combine the rates.
Grade 7 Math problem set
Gallowmere Dam's Summer Releases: A Grade 7 Flow-Rate Set
Students convert a dam release from cubic feet per second to gallons per day, name the conversion constant, and track signed weekly changes in reservoir level.
Grade 7 Lesson plan
Glasswing Utility Water-Loss Audit: A Grade 7 Percent Lesson
A 45-minute grade 7 lesson where students find the percent of water a fictional utility loses to leaks, then calculate a percent decrease after repairs.
Grade 7 Math problem set
Halden Plant Chlorine Dosing: A Grade 7 Proportion Set
A grade 7 set where students scale a proportional chlorine feed and work with dose, demand, and residual in mg/L for a fictional drinking-water plant.
Grade 7 Math problem set
Halstead's Water Main Map: Scale Drawing Problems for Grade 7
A grade 7 math problem set using measurements from a scaled map of a neighborhood's water mains to find real lengths and areas, then convert one length to a new scale.
Grade 7 Worksheet
Harlan Bend Treatment Plant: A Scale-Drawing Worksheet
A grade 7 scale-drawing worksheet built on a fictional treatment plant site plan, where students find real lengths and areas and redraw at a new scale.
Grade 7 Lesson plan
Hartsboro Roof Rainwater: A Grade 7 Proportional Lesson
A 45-minute grade 7 lesson where students model a fictional school roof's rainwater capture as a proportional relationship and solve for the rain that fills a tank.
Grade 7 Math problem set
Hartsel's Water Rate Increase: A Percent-Change Problem Set
A grade 7 problem set: students compute a town's water bills before and after a rate hike, find percent increases, and check them against affordability guidance.
Grade 7 Worksheet
Havenmere Reservoir Water Budget: A Grade 7 Signed-Number Worksheet
A grade 7 worksheet where students add positive inflows and negative losses to track a fictional reservoir's level change over a week using rational numbers.
Grade 7 Worksheet
Ironvale's Sludge Thickener: A Grade 7 Percent-Solids Worksheet
Students work through percent solids, percent decrease, and percent increase using daily sludge and digester gas records from a fictional recovery facility.
Grade 7 Worksheet
Kestrel Hollow's Lead Service Lines: A Percent Worksheet
A grade 7 percent worksheet set in the fictional town of Kestrel Hollow, where students find lead-line counts, replacement costs, and percent changes.
Grade 7 Lesson plan
Larkfen Farms Drip Irrigation: A Proportional-Reasoning Lesson
A 45-minute grade 7 lesson where students find the constant of proportionality and write an equation for water used per acre on a fictional drip-irrigated farm.
Grade 7 Math problem set
Longmarsh Plant Operator Rounds: A Grade 7 Unit-Rate Set
Students find rounds-per-hour rates from fractional shift times, then compute regular pay, overtime, and the class sessions needed to finish a renewal requirement.