The importance of learning has been emphasised by numerous researchers and philosophers. According to many teachers, meaningful learning occurs by means of conducting a research and establishing a conceptual relationship between new and existing concepts. This research aims at analysing the impact of educational activities applied in accordance with the learning styles on the conceptual development process of students in teaching social sciences. 112 students of primary school 4th grade, studying at Atikali Primary School affiliated to Fatih District Directorate of National Education in Istanbul, constitute the universe of this research. During this research, the students have been split by the researcher into two groups such as experimental group and control group. First of all, the students have been applied “Marmara Learning Styles Scale”. Then, “Word Association Test” which was prepared by the researcher has been applied as a pre-test. “Word Association Test” was developed using twelve concepts that were extracted from the 4th grade students’ course unit titled “People, Places and Environments” of the Social Studies Teaching Programme which is taught on the levels of introduction, advancement and reinforcement. For seven weeks, the students on the experimental group were taught in line with the course plans prepared according to the learning styles, on the other hand, the ones in the control group were taught in line with the plans of the guide book. Later, “Word Association Test” was applied as a final test. In the analysis of the acquired quantitative data, SPSS 18.0 has been utilised. Meaningfulness of the results of final test of the Word Association Test applied to the students in the experimental and control groups are compared to the results of “independent t test”. As a result of this comparative analysis, within the results of the final test, meaningful differentiation in favor of experimental group has been detected. The success average belonging to the students in the experimental group is observed higher than the control group. The programme implemented within the scope of this research is found effective.