1 A SCENARIO-BASED, PROBLEM-SOLVING EDUCATIONAL GAME FOR A SPECIFIC SUBJECT IN ELEMENTARY-SCHOOL SCIENCE EDUCATION IN CYPRUS, USING THE ACTIVITY THEORY: TRANSFORMING THE TEACHING AND LEARNING PRACTICES FOR ABSTRACT CONCEPTS IN SCIENCE EDUCATION DEMETRIS LAZAROU GRADUATE SCHOOL OF EDUCATION UNIVERSITY OF BRISTOL SEPTEMBER 2006 A DISSERTATION SUBMITTED TO THE UNIVERSITY OF BRISTOL IN ACCORDANCE WITH THE REQUIREMENTS OF THE DEGREE OF MSC ETS IN THE FACULTY OF SOCIAL SCIENCES & LAW Word Count: 17879