Big Ideas:
The same measure can be represented in multiple ways (e.g. 2 liters = 2,000 milliliters).
Larger numbers do not necessarily represent a larger quantity.
In this lesson, students are reacquainted with metric units of volume. In third grade, students measured liquid volume using metric units. For this lesson, students use their knowledge of the metric system to create a conversion table for liters and milliliters. In addition, students grapple with a common misunderstanding that larger numbers mean larger quantities.
Vocabulary: volume, liter, milliliter
Lesson plan