In this lesson about capacity, students revisited the units of measurement—liters and milliliters—and learned to use decimal notation to express these measures. The teacher reviewed that one liter is equal to 1,000 milliliters and demonstrated how to convert capacities using examples like a bottle holding 1.5 liters. The session involved interactive participation, with Marisa assisting in reinforcing key concepts and vocabulary, such as decimal point usage and conversions within capacity measurements.