The objective of this study was to explore if matched (congruent) learning and teaching styles have an impact on the students’ achievement. The sample for this study comprised of 310 English Major Students and four lecturers from the main campus of Azad University. Both quantitative and qualitative approaches were used in the collection of the data. The instrument used was the Index of Learning Styles Inventory by Felder and Soloman (2006), observation notes and an interview schedule. The results indicated that matched teaching and learning styles have a positive impact on students’ achievement.The findings from this study imply that it is important for teachers in English as Foreign Language (EFL) classes to take into account the Learning Style Preferences (LSPs) of their students if teaching and learning is to be optimized. The quantitative data would be presented in this paper where as the qualitative results will be reported in the paper titled: Pride and prejudice