The best method of teaching is to

Concept

Effective teaching is learner-centred: it actively engages learners in constructing understanding through questioning, reasoning, interaction, and feedback.

The teacher acts as a facilitator who organizes this participation rather than only transmitting content.

Application

Initiating a discussion and participating in it creates a two-way learning process. Learners articulate ideas, hear alternative viewpoints, ask questions, and receive immediate clarification, while the teacher guides the exchange toward the learning objective.

Contrast

• Imparting information mainly emphasizes one-way presentation of content.

• Asking students to read books supports independent study but does not by itself ensure guided interaction.

• Suggesting good reference material helps learners locate resources but does not by itself create an active teaching-learning exchange.

Cross-check

The discussion method satisfies the learner-centred criterion because both teacher and learners contribute, questions can be addressed during the activity, and understanding becomes observable through participation.

Therefore, the best method among the given choices is to initiate a discussion and participate in it.