Nur Meily Adlika. 2017. Development of Problem Based Learning Geography Learning Material in Natural Disaster Mitigation Subject for 11th Grade of High-school Students Of SMA N 1 Sragen. THESIS. Advisor: Puguh Karyanto, S.Si, M.Si, Ph.D. Co-advisor: Dr. Yasin Yusup, S.Si, M.Si. Study Program of Population and Environment Education, Postgraduate Program of Education, University of Sebelas Maret Surakarta. ABSTRACT This research aims to: 1) recognize characteristics of problem based learning geography learning material in natural disaster mitigation subject; 2) identify feasibility of problem based learning geography learning material in natural disaster mitigation subject; 3) pinpoint effectiveness of problem based learning geography learning material in natural disaster mitigation subject. The research of problem based learning geography learning material employs 4-D procedure of Thiagarajan modified into three stages which are: 1) Define, 2) Design, 3) Develop. Data collection techniques used are observation, questionnaire, test and documentation. Instruments used are questionnaire, observation, and assessment sheets. Assessment data of feasibility of problem based learning material is processed by using percentage descriptive formula, whereas data analysis of effectiveness is treated by using t-test formula. Results of the research are concluded that: 1) problem based learning geography learning material in natural disaster mitigation subject has been successfully developed by characteristics which are technically created by using Corel Draw 6 application. Subject of the problem based learning-based geography learning material has preeminence by the existence of learning stages appropriate with the problem based learning approach. There are geo info, subject summary and question exercise in the end of learning activity that are able to test the knowledge of the students toward natural disaster mitigation subject. 2) problem based learning geography learning material is appropriate to be used as teaching material in natural disaster mitigation subject. This is proven by the validation result of subject-expert lecturer, media-expert lecturer, and geography teacher that shows average score of 78.03. 3) problem based learning geography learning material is effective to improve students learning result in natural disaster mitigation subject. This is proven by -tstatistic < -ttable therefore it could be concluded that there is difference in the students learning result average before and after using problem based learning material. Keywords: Development, problem based learning material, natural disaster mitigatio
