Questions & Answers about Tengo una lección interesante para ti.
• Para often implies a destination or recipient of something. In this case, “It’s for you.”
• Por usually indicates a cause, reason, or duration. For example, “I study Spanish por you” might carry a meaning of “because of you” or “on your behalf.”
• Since we’re talking about whom the lesson is intended for, para is correct.
• Lección typically refers to a specific lesson or unit of study (like one segment in a textbook), whereas clase can mean an entire class session or group lesson.
• You can say Tengo una clase interesante if you’re talking about a scheduled class you will attend or teach. Tengo una lección interesante can focus more on the content of the lesson rather than the event of the class.