Grades 7–8 Writing prompt
Should Cedarville Raise Its Water Rates? An Argument Essay
Students read the real trade-offs behind a town's frozen water rates, then write an argument essay that must answer the strongest case against raising them.
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Grade 7
Seventh graders extend proportional reasoning to multistep percent problems, exactly the mathematics of rate increases, and begin acknowledging counterclaims in argument writing. Sampling and probability connect to how water quality is actually monitored.
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Grade 7 Writing prompt
Tarnholm's Lead Service Line Fee: A Grade 7 Argument Prompt
Students argue for or against a monthly fee that would replace a fictional town's lead service lines in six years instead of ten, using evidence on lead and bills.
Grade 7 Classroom activity
Crumpled-Paper Watershed: Placing Monitoring Stations to Find a Leak
Grade 7 groups swap crumpled-paper watersheds, place up to three monitoring stations, and use upstream and downstream results to find a hidden leaking site.
Grade 7 Lab / experiment
Kelby Flats Aquifer Materials: A Grade 7 Porosity and Flow Lab
A grade 7 lab where students measure porosity and soak-in time for gravel, sand, and a mix, then use a boring log to compare a sand-gravel aquifer with clay.
Grade 7 Math problem set
The Okonkwo Home Water Audit: Meter Tests, Leaks, and Wastewater
A grade 7 science problem set in which students use meter tests and a dye test to find a home leak, then trace where indoor and outdoor water goes.
Grade 7 Lesson plan
Desalination, Reuse, or Leak Repair: A Water Investment Lesson
A grade 7 civics lesson where pairs use real case studies and a fictional state's cost, time, and energy estimates to rank three water investments.