The study was aimed to determine knowledge and practices of preparatory schools’ children related to the selected first aid. Otherwise to evaluate influence of training program on knowledge and practices of preparatory school children related to the selected first aid. Design: One study group as served pre/ post–test used a quasi-experimental design. Settings: The study was carried out at preparatory schools at Banha City were selected four schools named May 15, Modern Pioneers, Atyrab New, National Guard, which were selected by systematic random way. Subjects: Multistage random sample was utilized to select four preparatory schools and the recruited children which composed of 160 children. Tools: Two tools for data collection were used; first tool an interview questionnaire sheet which included socio-demographic characteristics for children's knowledge related to the selected first aid. Second tool was consisted of observation checklist to observe practices for children's pre and immediately post training program. Results: The study implied that the training program was having a positive effect; on improving preparatory schools' children knowledge level and practices level related to the selected first aid post the training program was implemented. Recommendations: Periodically training programs for preparatory schools’ children as a whole related to the selected first aid for initial treatment of injuries and emergence situations must be done and the educational curriculum the knowledge and practices regarding to first aid could be inserted.

preparatory school, children, first aid