This article presents a reflection on the importance of attitudes towards mathematics in the students’ academic results. Since attitudes are an essential part of the affective component, the article begins with a brief definition of the concepts involved and the attitude components in a tripartite model. Subsequently, an analysis conducted by several authors on the impact of attitudes towards mathematics on the students’ academic results is presented. Likewise, an explanation on how to measure attitudes and some suggestions to modify students’ attitudes towards mathematics are proposed.