Grade 3 Lesson plan
Wrenmoor's Cloudy Tap Water: A Grade 3 Treatment Steps Lesson
A 50-minute grade 3 lesson in which students order the steps that clean creek water and compare two treatment plans for a made-up town.
Common Core Math · Grade 3
3.MD.A.2 Measure and solve problems with liquid volume and mass
Measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), and liters (l). Add, subtract, multiply, or divide to solve one-step word problems involving masses or volumes that are given in the same units, e.g., by using drawings (such as a beaker with a measurement scale) to represent the problem.
Why water teaches this standard well
This is the classroom water-measurement standard: students pour water into a graduated cylinder marked in liters for a simple water-quality test, then add or subtract volumes across several samples. Reading a beaker's measurement scale here is the direct precursor to reading a flow meter or dosing tank as an adult.
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.
23 materials aligned to 3.MD.A.2
Lesson plans
Grade 3 Lesson plan
Rimrock Water Plant Filter Sand: A Grade 3 Kilograms Lesson
A 45-minute grade 3 lesson where students solve one-step mass problems about bags of filter sand delivered to a fictional water plant, in grams and kilograms.
Grade 3 Lesson plan
Quarry Ridge Model Dam: Building a Reservoir on Slate Creek
A grade 3 engineering lesson: students fair-test dam materials to hold back model Slate Creek, then solve liquid-volume word problems about their fictional reservoir.
Grade 3 Lesson plan
Bluejay Elementary Field Day: Filling Water Coolers in Liters
A 45-minute grade 3 lesson where students estimate volume against a 1-liter bottle and solve one-step liter word problems while planning coolers for a school field day.
Worksheets
Grade 3 Worksheet
Elmbury Orchard Watering Design: A Grade 3 Worksheet
A grade 3 worksheet comparing a sprinkler and a drip line at a fictional orchard, using liters and setup minutes to pick a design and improve it.
Grade 3 Worksheet
Kestrel Creek Sample Jar Labels: A Grade 3 Liters Worksheet
A grade 3 worksheet where students design color labels for water sample jars and solve liquid-volume problems in liters from a creek club's data.
Grade 3 Worksheet
Cottonwood Water Works Basins: A Grade 3 Liter Worksheet
A grade 3 worksheet where students add, subtract, multiply, and divide liters of water in the settling basins of a small, fictional treatment plant.
Grade 3 Worksheet
The Nolan Family's Dripping Tap: A Grade 3 Water Choice Worksheet
A grade 3 social studies worksheet where students add and multiply liters from the Nolan family's dripping taps and weigh the benefit and cost of a fix.
Grade 3 Worksheet
Chestnut Grove's Pond Sample Beakers: A Liter Volume Worksheet
A grade 3 worksheet where an after-school science club measures pond water samples in liter beakers and adds, subtracts, multiplies, and divides the volumes.
Grade 3 Worksheet
Clearview Creek Testing Day: A Grade 3 Multiplication Worksheet
A grade 3 worksheet where students multiply equal groups of 2-liter jars to find how much creek water a fictional testing team collected at four sites.
Math problem sets
Grade 3 Math problem set
Pikeview Hydrant Flush Day: A Grade 3 Liters and Two-Step Set
A grade 3 problem set following one spring hydrant flushing day in a fictional town, with equal-groups liter totals, a truck tank, and two-step comparisons.
Grade 3 Math problem set
Thistle Hollow Rain Barrel: A Grade 3 Water-Saving Math Set
A grade 3 problem set where students add, subtract, and multiply liters to track a fictional family's rain barrel and drippy tap in the town of Thistle Hollow.
Grade 3 Math problem set
Whitmore Lab's Creek Screens: A Grade 3 Grams and Kilograms Set
At a fictional water testing lab, students solve one-step mass problems in grams about mud caught on creek screens, then switch to sand measured in kilograms.
Grade 3 Math problem set
Marrowdale Garden Club's Lid Test: A Grade 3 Fair Test Set
Six tubs at a fictional school garden, three with lids and three without, give grade 3 students trial data to subtract, share equally, and compare.
Grade 3 Math problem set
Fernbrook Water Plant's Storage Tanks: A Grade 3 Liter Problem Set
A grade 3 math problem set where students add and subtract liter volumes for two storage tanks at a fictional water treatment plant to track fill levels.
Grade 3 Math problem set
The Lakeview Splash Pad Pump: A Grade 3 Liters and Multiplication Set
A grade 3 math set where students use multiplication and a rate table to track how many liters a fictional splash pad's pump adds to its tank each minute.
Labs & experiments
Grade 3 Lab / experiment
Weighing the Water in Snacks: The Brambleigh School Drying Lab
A grade 3 health lab: students weigh cucumber, apple, bread, and crackers in grams, dry them for four days, and weigh again to find how much water each snack held.
Grade 3 Lab / experiment
Lumbry Bend's Water Wheel: A Grade 3 Pour-Height Fair Test
A grade 3 lab in which teams build a cork water wheel and test whether pouring one liter from a greater height makes the wheel spin more times in ten seconds.
Classroom activities
Grade 3 Classroom activity
Goldenrod Liter Estimation Stations: A Grade 3 Water Game
A grade 3 station game where teams estimate then measure the liquid volume of classroom containers in liters, tying measurement to saving water.
Grade 3 Classroom activity
Oakenshaw Farm's Three Ways to Water a Row of Beans
A 50-minute grade 3 station rotation comparing flooding, sprinkling, and drip watering on soil trays, with one liter of water measured for each fair trial.
Projects
Grade 3 Project
Mallowdene's Dry Summer: The Kittering Family Drought Health Plan
A four-session grade 3 health project: groups measure handwashing water in liters and plan how a fictional family can save water in a drought and still stop germs.
Quizzes & test questions
Grade 3 Quiz & test questions
A Day at Clearwater Springs Water Plant: A Grade 3 Math Quiz
A 24-point grade 3 quiz mixing multiple-choice, short-answer, and computation items on liters, a scaled bar graph, and two-step problems at a fictional plant.
Grade 3 Quiz & test questions
Otterbrook School's Water Week: A Grade 3 Math Quiz
An eleven-item, 22-point quiz set at a fictional school's water week, mixing equal groups, liters, two-step problems, and the perimeter of a splash pad.