Understanding Formal and Informal Language Registers

Khan Academy

This Khan Academy video explores the concept of language register, specifically focusing on the spectrum between formal and informal language. Through humorous and clear examples, the narrators demonstrate how mismatched tones—such as using slang to describe a corporate chairman or overly flowery language for a toddler's birthday party—can disrupt effective communication. The video breaks down specific linguistic markers that define formality, including vocabulary choice, sentence structure, and forms of address. The content highlights key themes of audience awareness and context. It introduces the term "register" as a critical concept for writers and speakers, emphasizing that neither formal nor informal language is inherently "better"; rather, success depends on matching the style to the occasion. The video provides a visual spectrum to help students conceptualize where different types of communication fall, from text messages to official decrees. For educators, this resource serves as an excellent introduction to tone and style in writing. It is particularly useful for preparing students for standardized tests like the SAT, where recognizing appropriate word choice is often tested. However, its broader application lies in teaching social-emotional learning and life skills, helping students navigate the nuances of emailing teachers, writing essays, or chatting with peers by choosing the "outfit" of language that fits the setting.