Cognitive flexibility is the executive process responsible for generating modifications in behaviors and thoughts in dynamic contexts, subject to rapid changes and fluctuations; therefore, the ability to change efficiently and quickly when circumstances demand it is an essential feature of adaptive behavior and adjusted to the objectives (Introzzi & Canet, 2015). A transversal study is presented below because it will be carried out in an established period, descriptive since it focuses on the phenomenon to be studied allowing to detail, the characteristics of the problem to be investigated, we worked with the students of fifth and sixth year of basic education of the "Jesús Infante" Private School, who were evaluated by means of the stroop test. It can be concluded that the students have good cognitive flexibility. It was also determined that within the word scale there is no major difference between genders. Finally, we can recommend that teachers and parents stimulate the cognitive flexibility of the students with various stretching exercises, physical activity and the daily use of didactic material.