Explanation : 1-iii, 2-ii, 3-iv, 4-i Lecture method is teacher- centered where students are passive but the teacher also asks questions to keep the students attentive. It is economical, saves time and also covers syllabus, so, is used to teach large number of students. Demonstration method is experience-based where the teacher communicates an idea or teaches something in a step-by-step demonstration with the aid of visuals such as flip charts, posters, power point, etc. Project Method is student-based where students engage in various activities together and solve a practical problem over a period of several days or weeks. It may involve building a rocket, designing a playground, or publishing a class newspaper. Collaborative method involves students working together in groups for common learning goals. It emphasizes the participative procedure of an act guided by the theory that knowledge is a social construct, and contextually relevant educational experiences involving social exchange lead to deeper learning.