In the historical method, a heuristic is an approach to find, collect and organize resources to obtain relevant historical materials according to the topics discussed. This research is a development research that is meant to develop problem statement as a solution of the heuristic problem faced by the students of History Education Program of Faculty of Teacher Training and Education, Lambung Mangkurat University on the Subject of History Method. The steps of this study refer to the development procedures adopted and adapted from those as suggested by [19]. The steps of the model adapted for this research are as follows: (1) need analysis and initial search of information, (2) competence analysis needed, (3) the development of assessment instruments, (4) the development of learning strategies, (5) need analysis on the learning model, (6) conduct of a formative evaluation. The evaluation is in the form of initial test using the one to one test involving 3 students who were representatively chosen. Furthermore, the small group and limited tests were conducted. The test was attended by 57 students determined from the participants of the Historical Method Subject in Study Program of History Education, Faculty of Teacher Training and Education, Lambung Mangkurat University. The results showed that their heuristic ability increased after the pretest and posttest for three times. MPS makes the students more critical in searching historical sources (heuristic competence) and in interpreting the historical sources. As a result, MPS gives an influence towards the students' learning achievement.