Concept:Student-centered methods focus on active involvement of the child in constructing knowledge through self-discovery and inquiry.
Explanation:The heuristic method, introduced by Professor H. E. Armstrong, is a student-centered approach.
The word "Heuristic" comes from Greek meaning "to find out."
In this method, the child acts as a discoverer and solves problems through unaided efforts.
It develops a spirit of inquiry and self-learning.
In contrast, the lecture method, historical method, and lecture-demonstration method are teacher-centered.
Thus, the heuristic method is the correct choice among the given options.
Answer:B. Heuristic method