This document provides an outline for a 25-45 minute lesson plan on sexual harassment for middle school to high school students. The objectives are to analyze how communication affects relationships and illustrate that sexual harassment situations are not always clear-cut and may depend on factors like prior relationship, age, sex, environment, and power dynamics between individuals. The lesson includes an activity where students role play different scenarios and say "stop" when a line is crossed to make them feel uncomfortable. The discussion focuses on why the line is crossed at different points and how to recognize and report sexual harassment.