This 9-hours micro-course introduces the fact-checking process, tools, and platforms essential in combating misinformation on social media. Learners will explore the importance of fact-checking, develop critical thinking and media literacy skills, and evaluate the credibility of online sources. The lessons cover fact-checking practices, digital tools to fight information disorder, and strategies for balancing privacy with responsible reporting. Activities include knowledge checks, a performance task, and a reflection with interactive elements such as a Google game. This course equips learners to become responsible digital citizens who can effectively counter information “truth-decay.”