The aim of this study is to determine the effects of teaching mathematics has been taught on the basis of the learning style, on students’ achievements, their acquisition and the relation between the learning styles and acquisition. Thus, in the present research, based on the teaching styles, teaching the subject of ‘Orbit and Circle’ in ‘Geometry and Measure’ unit was taught in terms of 4MAT instruction model. The research was conducted in the pre-post test with single-control group design of experimental research model. 106 7th grade students determined with stratified oriented sample from central primary schools in Balıkesir city. To collect data, pre-post test and Kolb learning style inventory were used. As a result of the research, it was determined that teaching geometry based on the students’ learning styles had a positive effect on the students’ achievement students’ gain scores would differentiate according to the school and their learning styles.