Objective: to identify scientific evidence on the contribution of nurses' work to good practices in child care in the Brazilian literature. Method: integrative review of the literature, carried out in Latin American and Caribbean in Health Sciences Literature (LILACS), Medical Literature Analysis and Retrieval System Online (MEDLINE), Brazilian Nursing Database (BDENF), Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Scientific Electronic Library Online (SCIELO) database, from 2008 to 2018. Results: 14 complete studies were selected for interpretative analysis. Two categories allowed responding to the initial questioning of the study, namely: Nurses' contributions in child care; and Limits for the nurse's role in child care. Conclusion: evidences show the importance of nurses in child care for the promotion of comprehensive care for children and their families. However, there are socioeconomic, cultural, institutional and technical factors that hinder the nurses' performance in this setting.

Objective: to validate an educational booklet for use on mobile devices on breastfeeding for family caregivers of newborns and infants. Method: a methodological research conducted from August 2017 to November 2018. Six stages were used to construct the booklet: search for themes based on literature review; theoretical study of the themes; booklet development; booklet validation by expert judges; booklet validation by the target audience; adequacy of educational material. Validation by expert judges took place via email and by the target audience at a rooming-in of a municipal hospital in Rio das Ostras, Rio de Janeiro, Brazil. Content Validity Index was used for validation. Results: the study obtained as a final result the construction and validation of an educational booklet entitled “Uncomplicating Breastfeeding”. The booklet was considered satisfactory, presenting an overall Content Validity Index among judges of 0.94 and among the target audience, of 0.98. However, all judges suggested improvements in the booklet, being considered and modified for the final version of the material, which will be made available on a link for mobile devices. Conclusion: the constructed educational booklet was validated for content and appearance by judges and the target audience, obtaining satisfactory indexes. It is an educational technology that can be used by health professionals and family caregivers of newborns and infants aiming at promoting breastfeeding and, consequently, reducing early weaning rates.

Objetivo: descrever o processo de construção e validação de um aplicativo para dispositivos móveis como tecnologia educacional sobre o aleitamento materno. Método: estudo metodológico realizado em junho de 2020 em cinco etapas (revisão de literatura; organização do conteúdo; construção do aplicativo; validação do aplicativo; adequação datecnologia educacional). Na validação com 20 juízes especialistas, via Google Forms, utilizou-se o Índice de Validade de Conteúdo, com valor mínimo de 0,8. Resultados: Índice de Validade de Conteúdo global foi de 0,96 e, entre os itens avaliativos sobre conteúdo, aparência e usabilidade, houve variação de 0,9 a 1. Sugeriram-se melhorias, sendo incluídas para a versão final da tecnologia educacional. Conclusão: o aplicativo “Descomplicando a Amamentação” foi avaliado de forma satisfatória por juízes especialistas e pode ser usado junto às famílias no processo educativo em saúde.