The child s interaction with technology is present in societies for long time and is not a specific feature of contemporary society. The fact that children are dominating and interacting with complex technologies each time earlier in situations that were once restricted to adult s universe, such as the Internet, seems more evident in society today. We regard that new technologies are changing the way the social relations are formed and developed, as much as their meanings. We understand that the contemporary children are immerse on those new relations and are, in this context, creating theirs identity and becoming subjects of this society. The main issue of this research is the designer s role as mediator in children s processes language, identity and meaning development as they interact with online game’s interfaces for children. We observed a group of children between 10 and 11 years, residents of Rocinha and Vidigal communities, in South Zone of Rio de Janeiro, during their activities in the Khouse project, hosted by the Informatics Department of Pontifical Catholic University of Rio de Janeiro. We conclude by understanding the role of design as a maintainer of myths and stereotypes, and indicate it is vital to reflect on his place as a promoter of new concepts and acquisition of knowledge of the child in its relationship with the Internet.