Using the Cross Math App as a teaching strategy for teaching basic operations in rural primary education

This research was conducted in a rural elementary school in the municipality of Comitán de Domínguez, Chiapas, Mexico. The Cross Math mobile app was used as a learning aid to analyze the app's impact on academic performance and perceptions of its usability among third-grade students in the areas of addition and subtraction in mathematics. A quantitative approach, quasi experimental design, and descriptive level were used, using an achievement test and a Likert-scale survey as data collection instruments. The results of using the Cross Math app indicated a significant improvement in academic performance and a positive perception of the app among students.