This document discusses several theories of transfer of learning, which refers to how learning one skill or concept affects performance in other areas. The main theories covered are the theory of mental discipline, identical elements theory, theory of generalization, and theory of configuration. The identical elements theory, proposed by Thorndike, states that transfer depends on the common elements between situations. Near and far transfer are also discussed, referring to applying skills in similar versus changing situations. Factors like learner ability, subject matter, attitudes, teaching methods, and environment can impact transfer. Modern perspectives view transfer through a metacognitive lens, focusing on learning how to learn and making connections between past and present learning.