3.7.E

Math3rd Grade

The Standard

determine liquid volume (capacity) or weight using appropriate units and tools

Texas Essential Knowledge and Skills for Mathematics

Teacher's field guide

What This Standard Means

What Students Need to Do

Students measure how much liquid a container holds and how heavy an object is. They choose a suitable tool, read its markings, and report the measurement with units.

What Mastery Looks Like

Students select a measuring cup or graduated container for liquids and a balance or scale for weight. They read the markings accurately and record each result with a reasonable unit.

Common Misconceptions

Students may confuse capacity with weight or assume a larger container always holds more. They may choose the wrong tool, read a scale incorrectly, or leave units off answers.

How to Assess It

Give each student a measuring cup, water, a scale, and a small object. Ask them to measure the water’s capacity and the object’s weight, including units.

Lesson moves

Ways to Teach It

  1. Set up stations where students measure colored water with measuring cups and weigh classroom objects using a balance or digital scale.

  2. Ask students to explain which tool and unit they would use for a water bottle, watermelon, soup pot, and paper clip.

  3. Play a tool-and-unit matching game using cards labeled with objects, measuring tools, and units such as liters, milliliters, grams, and kilograms.

  4. Use grocery packages and a simple drink recipe to compare labeled weights and measure the liquid needed for one batch.

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