The presentation covers the concept of passive voice through various activities. It begins with definitions of active and passive voices and examples. Students then complete four activities: 1) forming passive sentences from pictures, 2) filling blanks with correct past tense verbs, 3) matching verbs to tenses, and 4) forming passive sentences from active ones and omitting agents when unnecessary. The goal is to help students understand how to identify and form passive voice through practical explanation and exercises.