This document provides information for a lesson plan titled "Become an Online Sleuth". The lesson teaches students how to evaluate the credibility of online content by identifying guidelines for what makes a website trustworthy or not. It involves students watching a video about evaluation criteria, discussing factors that indicate a site is reputable, and having students practice analyzing websites. The lesson aims to help students understand that just because something is online does not automatically make it true, and to learn skills for determining which sources they can trust online.