This document discusses strategies and educational focuses used in professional English language teaching practices. It examines the evolution of approaches from behaviorist/conductist theories, which emphasized stimulus-response associations and imitation, to cognitive theories focusing on mental representations and problem-solving. Later, constructivist theories viewed learning as an internal construction based on students' prior experiences. Key methods discussed include the oral/situational approach, audiolingual method, cognitive code, communicative approach, natural method, and whole language approach. The conclusion is that while theories have progressed, aspects of behaviorism, cognitivism and constructivism co-exist in contemporary second language teaching.