Grade 10 Lesson plan
Brackenmoss Wells: Estimating Nitrate With a Margin of Error
A 55-minute grade 10 lesson where students estimate a fictional district's mean well nitrate from a random sample and build a margin of error by simulation.
Common Core Math · High School
HSS-IC.B.4 Estimate a population mean and margin of error
Use data from a sample survey to estimate a population mean or proportion; develop a margin of error through the use of simulation models for random sampling.
Why water teaches this standard well
Students estimate a citywide mean lead level from a sample of household taps and report a margin of error built from a simulation of repeated random sampling. Reporting an honest margin of error alongside an estimate is a standard practice in real drinking-water compliance reporting.
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 HSS-IC.B.4
Lesson plans
Grade 12 Lesson plan
Copper Bend Tap Sampling: Estimating Lead Levels with Margin of Error
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.
Worksheets
Grade 11 Worksheet
Thornfield's Tap Sampling: Mean Lead Level and Margin of Error
A grade 11 worksheet where students use a fictional city's sample mean and a simulated margin of error to estimate its true citywide tap-water lead level.
Math problem sets
Grade 12 Math problem set
Larkspur Bend pH Sampling: Estimating a Mean with Margin of Error
A grade 12 statistics problem set where students estimate a fictional system's mean pH, apply a margin of error, and judge whether the system meets the EPA pH standard.
Classroom activities
Grade 11 Classroom activity
Thistlewood Well Field Sampling Relay: A Sampling Distribution
A grade 11 activity where teams draw repeated random samples from a fictional well field to build a class sampling distribution and estimate its spread.
Projects
Grade 11 Project
Student Hydration and School Fountains: A Random-Sample Survey
Teams audit every school fountain, survey a random sample of students, estimate tap-water use with a simulated margin of error, and pitch a budgeted plan.
Grade 12 Project
Jarrowdene Drought Reliability: A Simulated Ten-Year Study
A six-session grade 12 project in which students simulate reservoir storage under three drought policies and report a failure probability with its margin of error.
Grade 12 Project
Dissolved Oxygen Below Cedar Mill Outfall: A Capstone Investigation
A grade 12 capstone project where students sample dissolved oxygen above and below a fictional outfall, then use statistics to recommend action to a watershed council.
Quizzes & test questions
Grade 11 Quiz & test questions
Colwyn Flats Rebate Survey: A Grade 11 Sampling Quiz
A 30-point grade 11 quiz on a fictional utility's rebate survey, covering study type, response rate, margin of error, sample size, and nonresponse.
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.