Final answer:
The teaching principle you're likely referring to is "show, don't tell," which encourages descriptive writing in English classes. It is not specific to classroom behavior or online privacy, which are separate concerns involving social control in educational settings and maintaining professionalism on social media profiles, respectively.
Step-by-step explanation:
The term "don't show" does not align with a commonly recognized teaching principle; it seems you might be referring to "show, don't tell," which is a widely used concept especially in creative writing. "Show, don't tell" is a technique writers use to convey a message by providing vivid details and imagery to engage the reader's imagination instead of simply stating facts. For example, rather than saying "Timmy is scared," an author using "show, don't tell" would describe Timmy's physical reactions and the setting to illustrate his fear.
Regarding classroom behavior and social control, a professor might intervene when a student is disrupting the class, such as by using a cell phone during the lecture. By addressing this behavior directly and asking the student to turn off the phone, the professor reinforces the classroom norms and exhibits a form of social control to maintain an environment conducive to learning.
Lastly, when it comes to online presence, the statement "Don't put anything on your profile that you wouldn't want an employer to see" suggests that users should curate their online profiles carefully, considering their professional image. This involves not revealing sensitive information or personal expressions that might be detrimental to their job prospects.