As learning is continuous, a teacher must start teaching at the level of the students' mind for their better learning. This is called

Beginning teaching at the level of the students' existing understanding is the principle of association, linking the new to what is already known.

The principle of association follows the maxim from known to unknown, anchoring fresh content to prior ideas.

It builds a bridge from the learner's mental level to new material, aiding meaningful learning.

The principle of clarity concerns clear presentation and objectives, not starting from prior knowledge.

The principle of active process stresses learning by doing, a different idea.

The principle of multiple exposure repeats material in varied ways, again distinct from association.