Lesson Plan

Estimating Measurements of Mass and Volume Using Metric Units

Students will become more familiar with common metric measurements by matching everyday objects with the metric mass and volume units they would use to measure them.
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Need extra help for EL students? Try the Which Unit of Measurement? pre-lesson.
View aligned standards
Need extra help for EL students? Try the Which Unit of Measurement? pre-lesson.

Learning Objectives

Students will be able to measure and estimate liquid volumes and masses of objects using standard units of grams (g), kilograms (kg), liters (l), and milliliters (ml).

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments


(10 minutes)
  • Pose the following questions to the class and discuss: Why do we measure things? Why do we need standardized units of measurement?
  • Give students three minutes in small groups to brainstorm as many units and objects to measure that they can think of (2 liters of soda, yards on a football field, feet and inches to measure height, pounds to measure weight, etc.).
  • Explain that there are two different systems of measuring, the United States Customary Units that is used by Burma, Liberia, and the US, and the International System of Units (or the metric system) which is used by the rest of the world.
  • Tell students that in this lesson they will be learning about units in the metric system used to measure liquids (called volume) and metric units for weight measurement, which is called mass.
  • Beginning: Have students brainstorm with a small group of supportive students or peers with the same home language (L1), if possible.
  • Allow students to use bilingual dictionaries to look up measurement terms, such as: measure, unit of measurement, liter, feet, inches, pounds, etc.
  • Intermediate: Provide sentence stems for students to share their thoughts, such as: "We measure things because..." and "We need standardized units of measurement because..."