Lesson Summary:In this lesson, students engaged in a science-based argument to support the claim that some microorganisms are beneficial, applying their knowledge in real-world contexts. The lesson began with an exploration of microorganisms, including their roles in food production, medicine, and environmental health. Students read informational texts and watched a short video highlighting examples, such as bacteria used in yogurt production or microbes that help decompose waste. Using this evidence, students worked in small groups to construct arguments supporting the claim that certain microorganisms are helpful. They organized their ideas using a graphic organizer, citing specific examples and explaining the benefits of these microorganisms. Each group presented their arguments to the class, engaging in discussions and addressing counterarguments about potentially harmful microorganisms. This lesson fostered critical thinking, evidence-based reasoning, and real-world relevance by encouraging students to evaluate the dual nature of microorganisms and advocate for their beneficial roles.