Concept:
This is based on the principle of "Multiple Intelligences" (Gardner) or "VARK" learning styles. Students do not learn in a uniform way; some learn by seeing, some by doing, and some by talking. Diverse experiences (audio, video, hands-on, group work) ensure that the lesson reaches every student.
Step 1: Evaluating the Assertion.
A modern lesson plan must be flexible and rich. Incorporating diverse learning experiences is a hallmark of an expert teacher. Thus, A is correct.
Step 2: Evaluating the Reason.
When a student sees a concept in a book, then sees a video of it, and then does an experiment, their neural connections are strengthened. This enriches their learning significantly. Thus, R is correct.
Step 3: Analyzing the Connection.
The teacher incorporates diversity *specifically because* it leads to this enrichment. Therefore, R is the correct explanation of A.