Forming mathematical symbols for children in preschool is a teaching activity oriented by teachers, designing and organizing the implementation, creating opportunities for children to have reality, positive experience, exploitation. The experiences have been used to apply to math in preschool. The introduction of Steam applications helps children effectively interact with the learning subjects to perform the assigned tasks or solve problems of real life, family and society in accordance with At the same time, developing the capacity to use mathematical knowledge is essential. In order to improve the quality of organization of mathematical teaching activities for preschool children according to Steam access, it is necessary to take measures to organize and design activities suitable to teaching practices and subjects.