Grade 11 Lesson plan
Harlow Springs and Odell Flats: Comparing Hardness Spread
A grade 11 statistics lesson comparing the center and spread of two fictional source-water hardness data sets and interpreting how an outlier shifts the mean.
Water Math · Grade 11
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.
68 materials written for this grade · refine by type, topic, or standard in the catalog
Grade 11 Math problem set
Hollis Junction Water Rates: Linear Versus Exponential Growth
A grade 11 problem set contrasting a fixed-percent water rate increase with a steady pipe leak, using function models and average rate of change.
Grade 11 Project
Does Turbidity Predict Bacteria? A Creek Monitoring Regression Project
A grade 11 investigation pairing turbidity and bacteria readings from a fictional creek to fit a regression, assess the fit, and evaluate a data-based safety claim.
Grade 11 Math problem set
Kelloway Water District Pay Steps and a Certification Payback
A grade 11 problem set comparing a fixed-step pay schedule with a percent-raise schedule at two fictional utilities, then pricing a license certification.
Grade 11 Math problem set
Kestrel Bend PFAS: GAC Contactor Sizing and Contact-Time Problems
A grade 11 math problem set on removing PFAS with granular activated carbon: percent reduction, flow conversions, bed volume, and empty bed contact time.
Grade 11 Math problem set
Larkmoor Junction Transmission Main: Flow, Velocity, and Pipe Geometry
A grade 11 problem set modeling a fictional transmission main as a cylinder, converting MGD to gpm and cfs, and using Q = A x V for velocity, volume, and travel time.
Grade 11 Quiz & test questions
Marden Water District Bills: A Rates and Water-Use Quiz
A grade 11 quiz mixing multiple-choice, short-answer, and computation items on a fictional district's per-capita use, affordability, and rate growth.
Grade 11 Worksheet
Marrow Gap Booster Pump Station: Flow, Head, and Precision
A grade 11 worksheet on a fictional booster pump station: pipe area, velocity, flow-rate conversions, well drawdown, and head-to-pressure with sensible precision.
Grade 11 Math problem set
Merrick Point Jar Test: Coagulant Dose and Turbidity Regression
A grade 11 problem set fitting a line to a fictional jar test's dose and settled turbidity, then predicting, finding residuals, and reading a correlation coefficient.
Grade 11 Math problem set
Ospringe's Two Sources: pH on a Logarithmic Scale
A grade 11 problem set converting pH to hydrogen ion concentration for two fictional sources, blending them, and sizing the soda ash dose that follows.
Grade 11 Quiz & test questions
Pellow River Nitrate: A Grade 11 Statistics Unit Test
A 30-point grade 11 statistics test on a fictional river's nitrate data, with items on spread, margin of error, and least-squares regression.
Grade 11 Lesson plan
Pelsworth's Dry Spell: Fitting Ludworth Brook's Recession Curve
A grade 11 lesson fitting an exponential decay model to six fictional streamflow readings, then predicting when the brook drops below an intake.
Grade 11 Math problem set
Pentley Well Field: Drawdown, Specific Capacity, and Yield
A grade 11 problem set on a fictional well field: compute drawdown and specific capacity, solve for a safe pumping rate, and check the field against district demand.
Grade 11 Worksheet
Quillan Bend Filtration Plant: Loading Rate and Detention Time
A grade 11 worksheet on a fictional conventional treatment plant: filter loading rate as a density, basin volume, detention time, and a turbidity compliance check.
Grade 11 Math problem set
Sarnford's Day of Demand: Sizing the Storage Tank
A grade 11 problem set building a running tank balance from a fictional district's 24-hour demand table, then sizing the tank in gallons and in feet.
Grade 11 Math problem set
Seabright Bay Desalination: Reverse-Osmosis Recovery and Energy
A grade 11 problem set on a fictional seawater RO plant, finding permeate and brine flows, percent recovery and salt rejection, an equation model, and daily energy cost.
Grade 11 Lesson plan
Sundale Reservoir PFAS: Making Sense of Parts Per Trillion
A 45-minute grade 11 math lesson using scientific notation to convert PFAS units, find the mass in a fictional reservoir, and compare readings to the federal limit.
Grade 11 Worksheet
Talmadge Reservoir Elevation: Reading a Hydrograph's Key Features
A grade 11 worksheet reading domain, range, increasing and decreasing intervals, extrema, and rate of change from a fictional reservoir's monthly elevation table.
Grade 11 Worksheet
Thackery Mills Reclamation Plant: Loading and Removal Efficiency
A grade 11 worksheet applying the pounds formula and removal-efficiency percentages to a fictional water reclamation facility's BOD and TSS data.
Grade 11 Worksheet
Thornleigh's Aging Water Mains: A Replacement Plan Under Two Limits
A grade 11 worksheet writing budget and crew-capacity inequalities for a fictional city's main replacement program, then solving the system they form.
Grade 11 Math problem set
Thornwell Dam Hydropower: Head, Flow, and Power Output Problems
A grade 11 math problem set on a small hydropower turbine: converting flow units, computing water horsepower and kilowatts, and solving for a target output.
Grade 11 Worksheet
Tilbourne Hollow's Detention Basin: Volume, Storage, and Drawdown
A grade 11 worksheet on a fictional town's stormwater detention basin, using sloped-side geometry, acre-feet, design-storm runoff, and drawdown time.
Grade 11 Math problem set
Tolliver Creek Road Salt: Chloride and Conductance Regression
A grade 11 problem set fitting a regression line to paired conductance and chloride data from a fictional creek, then predicting, checking residuals, and reading r.
Grade 11 Math problem set
Torvale Coast RO Blending: Recovery and a TDS Mass Balance
A grade 11 problem set on a fictional brackish RO plant: find recovery, solve a blended-TDS mass balance for the bypass fraction, and estimate daily energy.