Hold up a piece of bread without any visible mold, and ask students if they would eat it. Then do the same with a moldy piece of bread. When the mold is left alone, it just continues to grow and make more mold. Germs aren't dangerous unless they are allowed to grow and make big families of germs. To make sure that the germs can't do this, it is important to bathe and to wash dirty clothing regularly.
Students demonstrate cleanliness activities.
Add a small, empty box or a magazine picture of laundry detergent to the unit bulletin board begun in lesson 1. This is the way we take a bath and wash away the germs. This is the way we scrub our clothes, and wash away the germs. Reflect, summarize and discuss. Discuss what students have learned about the importance of cleanliness.