From art to the humanities, how to get students to take advantage of artworks in museum context using mobile, digital devices? We present the implementation of a research and development project between the Montreal Museum of Fine Arts and Montreal primary schools for the design and testing of a museo-techno-didactic device. This device uses a prototype application for mobile technologies we have designed and affords a museum experience at the intersection of the visual arts and the humanities. After outlining the design process and testing the device with 3 different third-grade classes, we explore its potential for social science reasoning in contact with works of art, specifically in terms of the interpretation of works of figurative art for their documentary value. Analysis of videos made shows the value of the device to stimulate and collect students' thinking but also demonstrates some weaknesses in the contextualization of the works, possibly related to limited knowledge with respect to past contexts that have been studied.