The background of this research is: to attract students in theme learning, there needs to be a fun learning method. Therefore, problem based learning methods is selected. Researchers chose the PBL because this approach uses a learning step by steps that define problems, diagnose problems, formulate alternative strategies, define and implement preferred strategies and evaluations.  The focus of this research is: (1) Implementation of problem-based Learning method (problem-Based learn) in theme 2 Always save energy learners class IV D MIN 2 Kediri (2) supporting factors in implementing learning methods Problem-based Learning Methods (IVD MIN 2 Kediri Class). While the purpose of this research is: (1) to describe the implementation of problem-based learning method in theme 2 "Always save energy. 2 To describe supporting factors in implementing a problem-based learning method. The research uses a qualitative approach using class action research (PTK). A qualitative approach is chosen, because with this research, it is hoped that we can collect the data obtained, then process, analyses and symbolize it, so that there is a clear understanding of the effectiveness of the method Problem-based learning in theme learning. Data collection is done by conducting observations, interviews, and documentation. Then data in analysis using data analysis is data reduction, data presentation and conclusion results. The results of the study are: (1) there is a success indicator of the successful learning percentage of the pre-action which is only 65.71% with an average value of 71.8. (2) On the complete learning to be 71.42 with a flat average of 74.9, so there is an increase of 5.71% (3) in the cycle II the satisfaction of learning reaches 88.57% with the average value of class 80.7 and there is an increase of cycle I and cycle II as much as 17.15. (4) With this can be seen the increase of the membership of the class as much as 22.86% from the activities of pre-action until cycle II already met the success indicator is amounting to more than 75% of the number of learners.