Asrina (adapted from the word meaning “to smile” in Quechua) is a learning program designed to help Peruvian parents interactively navigate decisions affecting children’s health. As sodas and processed foods become increasingly prevalent in developing countries, children are more vulnerable to cavities and oral pain. Yet most health education in the developing world is lecture-based and has proven unsuccessful at changing long-term habits. Asrina changes this model by introducing interactive, culturally relevant scenarios projected on a wall using mobile technology to encourage dialogic conversation and feedback between learners. It promotes decision-making in the best interest of children’s health in the world’s most underserved communities.