This document discusses different teaching styles including teacher-centered, student-centered, and collaborative styles. Teacher-centered styles include the authority/lecture style where the teacher is the main authority and students passively receive knowledge, and the demonstrator/coach style where the teacher shows students skills through demonstrations. Student-centered styles involve facilitator and delegator roles where the teacher facilitates critical thinking and students engage in group activities. Collaborative styles promote peer learning through group discussions, activities, and problem-solving. The document notes the merits and demerits of each style and provides tips for effective implementation depending on the topic material, teacher abilities, and communication skills.