Constructivism is newly invented strategy used in learning process. It imparts that no one can teach other, everyone generate its own knowledge depending on his or her previous knowledge and the role of teacher is only as a guide of learning situations. It helps learners to construct his own knowledge by doing some activities with collaboration, making spot decision, using high level thinking skills and own creativity. This research’s objective is to study the effectiveness of constructivism by comparing it with traditional method. Experimental method used for comparison. 60 students of div. ‘A’ and ‘B’ of Eights standard of S.V.J high school in Mumbai were selected as a sample in academic year 2013-2014. Division ’A’ students selected as experimental group and division ’B’ students selected as a control group at random. Pre-test and post test design with control group implemented. The data interpreted with the help of statistics.