Background: The growth and development phase are an essential and critical period of human life, especially in the early stages. It was defined by most professionals as the interval from conception to eight years of age. This interval is vital for brain growth. In addition, these developmental years have a significant and lifelong impact on children. Thus, almost all children in these years need to be well cared. Aim: The study aimed to assess the impact of adopting UNICEF modules on nursing students' knowledge about growth and development concepts. Design: A qualitative study design was used to conduct the study. Participants: 40 nursing students participated in the study. Methods: Four focus nursing students’ groups were interviewed. They included two groups of the traditional curriculum, and two others for the modified curriculum according to UNICEF’s modules for growth and development. Setting: The study was conducted at the Islamic University of Gaza. Results: Most of the students in the the new curriculum mentioned that they received and learned a lot of knowledge about growth and development themes and subthemes while, unfortunately, the traditional curriculum groups did not. Conclusion: The new curriculum modified according to UNICEF modules for growth and development was effective in enhancing nursing students' knowledge about growth and development concepts.