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l would not say one method can be singled out but blending them is the best way forward.
the best ever method that is existed and the most natural is the question-answer format and why?
every one born with it, ask a child how old he or she is and they will tell you the answer meaning the question and answer technique provided that you know how to use it will give you the best feed back about your students. the best scholars ever have learned that way!.