Grade 8 Lesson plan
Cobble Run Crossing in Dessford: A Flood Gauge Safety Lesson
Students watch a buoyancy demo, read a fictional creek gauge graph, and decide when a flooded low-water crossing is unsafe to walk or drive, even as water falls.
Common Core Math · Grade 8
8.F.B.5 Describe functional relationships from a graph
Describe qualitatively the functional relationship between two quantities by analyzing a graph, and sketch a graph that exhibits the qualitative features of a function described verbally.
Why water teaches this standard well
Given a verbal description of a tank filling, holding steady, and then draining, students sketch a graph showing the water level rising, flattening, and falling in the correct order. Translating a tank's story into a graph shape is a skill directly transferable to reading a real SCADA trend chart.
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.
11 materials aligned to 8.F.B.5
Lesson plans
Grade 8 Lesson plan
Ledworth Filter Run: Reading a Graph That Is Not a Line
A grade 8 lesson where students describe a fictional sand filter's headloss graph, decide where it is linear or curved, and sketch one from words.
Grade 8 Lesson plan
Alderbrook Water Tank: Reading and Sketching Level Graphs
A 50-minute grade 8 lesson where students describe and sketch qualitative graphs of a fictional town's water-tank level rising, holding, and falling across a day.
Grade 8 Lesson plan
Marram Dunes Pump Station: Reading and Sketching Tank-Level Graphs
A 50-minute grade 8 lesson where students read and sketch qualitative graphs of a fictional pump station's tank level rising, holding, and falling over a day.
Grade 8 Lesson plan
Pebble Run Storm Hydrograph: Reading and Sketching Graphs
A 45-minute grade 8 lesson where students treat a creek's storm hydrograph as a function of time and sketch and describe its rise, peak, and slow fall after a rainstorm.
Grade 8 Lesson plan
Wickerstone Plant Inflow: The Shape of a 24-Hour Day
A grade 8 lesson on describing and sketching qualitative graphs, using a fictional water reclamation plant's twelve inflow readings across one day.
Worksheets
Grade 8 Worksheet
Nordhaven's Overnight Tank Trend: Reading an Operator's Chart
A grade 8 worksheet where students read a fictional utility's overnight tank-level log, find rates of change, build a linear function, and predict an overflow time.
Grade 8 Worksheet
Sedgebarrow Road Fire Flow Test: Matching Graphs to Events
A grade 8 worksheet where students sketch and describe pressure and flow graphs for a fictional fire flow test, matching each graph shape to what the crew did.
Grade 8 Worksheet
Sable Reach Brook: Reading a Streambed Slope Profile
A grade 8 worksheet turning a streambed survey table into a linear function, comparing two reach slopes, and placing rock riffles where storm flow runs fastest.
Grade 8 Worksheet
Foxhollow School Rainwater Cistern: A Linear Function Worksheet
A grade 8 worksheet modeling a rainwater cistern's fill, hold, and drain phases as linear functions of time, interpreting the rate of change from each phase.
Labs & experiments
Grade 8 Lab / experiment
Faircombe Main Break: Testing How Much Rinse Water Hands Need
During a fictional water main outage, students test how rinse volume and soap change the residue left on hands and pick a rinse amount for school jug stations.