A deductive lesson starts by stating a general principle or rule and then applies it to specific cases, leading learners to understand through examples.
Option A: Deductive lesson
Correct; begins with general rule and moves to specific applications.
Option B: Inductive lesson
Incorrect; it derives general rules from specific observations.
Option C: Developing lesson
Incorrect; generally focuses on gradual construction of knowledge, but not necessarily rule-first.
Option D: Knowledge lesson
Incorrect; it emphasizes imparting factual information, not rule-first learning.