Lesson 4

Units of Volume

Est. Class Sessions: 1

Summarizing the Lesson

Measure a Larger Container with a Smaller Container. Introduce the homework by showing students the two different-sized containers you gathered before the lesson.

Ask:

X
  • About how many milliliters will the larger container hold?
  • How can you use the smaller container to find out? (I can use the smaller container like I used the graduated cylinder. Fill the smaller container and empty it several times into the larger until the larger container is full. Then add up the milliliters.)

Demonstrate measuring the larger container in milliliters using the smaller container. Note that you may need to add a partial container of water from the smaller measure in order to totally fill the large container. Students will need to estimate this amount. For example you may need about 21/2 small containers to fill one large container.

Write a number sentence that compares the milliliters to liters for your containers (e.g., 2 liters = 2000 ml or 2.5 liters = 2500 milliliters).

Ask:

X
  • Does the measurement match the volume written on the larger container? Why or why not?

Assign the Homework Section in the Student Guide.

When students return with their completed homework, organize students so they can share their homework solutions and compare the pictures of their containers in small groups.

Ask students to share their strategies and write number sentences that show the number of milliliters in the larger container. For example, 0.5 liters = 500 milliliters. The number sentences should then be recorded on students' homework.

Ask each group to put their pictures of their larger containers in order from smallest volume to largest volume.

Student Guide:
Student Activity Book:
Master: