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.
Grade 12 Math problem set
A grade 12 problem set on utility finance: revenue requirement, fixed and volumetric charges, a break-even usage, debt-service coverage, and an affordability check.
Math 50 min Answer key
Grade 12 Lesson plan
A 50-minute grade 12 lesson where students track a fictional reservoir's monthly storage with a water-budget equation and model its decline.
Math 50 min Answer key
Grade 12 Quiz & test questions
A 45-minute, 40-point grade 12 test on a fictional basin: converting runoff depth to acre-feet and MGD, then reading average rates of change from a storage table.
Math 45 min Answer key
Grade 12 Worksheet
A grade 12 stormwater worksheet using the rational method: composite runoff coefficients, peak flow in cfs and gpm, and detention volume for a redevelopment site.
Math 45 min Answer key
Grade 12 Math problem set
A grade 12 problem set on a fictional treatment plant, using the pounds formula to size chlorine dose, demand, hypochlorite feed, and clearwell contact time.
Math 50 min Answer key
Grade 12 Math problem set
A grade 12 problem set sizing a fictional farm's center pivot, converting crop water need in inches to gallons, then to gpm, MGD, and cfs, and testing a well's capacity.
Math 45 min Answer key
Grade 12 Lesson plan
A grade 12 lesson where students compute and compare a pay-as-you-go rate surcharge and a revenue-bond surcharge to fund a fictional utility's capital program.
Math 50 min Answer key
Grade 12 Classroom activity
A grade 12 statistics activity where students draw simulated samples from a fictional watershed to test whether a contamination model matches observed data.
Math 45 min Answer key
Grade 12 Worksheet
A grade 12 worksheet where students chain MGD, gpm, and cfs conversions and apply the operator pounds formula to set a chlorine feed rate at a fictional treatment plant.
Math 40 min Answer key
Grade 12 Lesson plan
A grade 12 statistics lesson where students estimate a mean lead level from simulated tap samples and build a margin of error for a fictional water system.
Math 50 min Answer key
Grade 12 Worksheet
A grade 12 worksheet where students convert a booster pump station's flow among MGD, gpm, and cfs, then use the continuity equation to find pipe velocity.
Math 40 min Answer key
Grade 12 Project
A grade 12 multi-session project where student teams build a capital improvement and rate plan for a fictional utility, constrained by an affordability limit.
Math 4 sessions, ~200 min total Answer key
Grade 12 Worksheet
A grade 12 worksheet using a fictional reverse osmosis plant to calculate percent recovery, salt rejection, and concentrate flow from feed and permeate data.
Math 45 min Answer key
Grade 12 Worksheet
A grade 12 worksheet in which students build and use an exponential decay function for chlorine residual across a fictional town distribution system.
Math 45 min Answer key
Grade 12 Math problem set
A grade 12 problem set using a regression line fitted to a fictional reservoir's phosphorus and algae data to predict, find a residual, and judge extrapolation.
Math 45 min Answer key
Grade 12 Lesson plan
A grade 12 lesson using the continuity equation to model how pipe diameter changes affect flow velocity at a fictional pump station upgrade.
Math 50 min Answer key
Grade 12 Math problem set
A grade 12 problem set chaining the pounds formula and the percent-to-mg/L conversion to size a hypochlorite feed pump at a fictional treatment plant.
Math 45 min Answer key
Grade 12 Math problem set
A grade 12 problem set applying percent removal and exponential decay functions to BOD data from a fictional wastewater treatment plant.
Math 45 min Answer key
Grade 12 Quiz & test questions
A grade 12 certification-style practice exam covering chained unit conversions, the pounds formula, tank volume, and detention time for a fictional treatment plant.
Math 50 min Answer key