Cross-cutting themes cut across fragmented curricular subjects and are themes that must be worked on in a contextualized way. These themes are important and urgent to be worked on in the school environment, as they are associated with the social context, and refer to citizenship and civics, multiculturalism, science and technology, environment, economy and health. In this study, we bring a brief reflection on the transversal themes, bringing a little of their history, their conception in the PCN's and the BNCC, in addition to explaining their meaning. However, the main objective of this work is to map work on transversal themes, in which teachers applied activities involving these themes in school practice in order to highlight their main results and at the same time demonstrate the importance of using transversal themes in school. The chosen methodology was qualitative bibliographical research. To collect the data, the search platform “Google Scholar” was used using the descriptors: “transversal themes” and “experience reports” and “teaching”. The time frame used was from 2019 to 2023. The data was analyzed according to content analysis. The following were used as pre-categories for analysis: author (year); article title; region of application; transversal theme and main results. This research is expected to make cross-cutting themes better known, through research that has already been applied and that brings significant results, raising teachers' awareness of its use in the classroom, given that they are mainly responsible for its implementation.