In view of the ongoing discussions and developments in the educational environment with regard to new technologies that arise in society and are inserted in the classroom, in this research we start from the time of insertion of the tablets in the Brazilian public education, with the aim of discussing the transposition of an implementation and expansion of the content of the printed textbook math for the tablet. Sought to show that, to use the tablet in the classroom and develop materials for this device, it is important to focus on the student in their cognitive processes and their learning, not only in innovative features that technology can offer. Specifically, the following problem was addressed: How to adapt the content of textbooks for tablets, considering its effects on student learning? These devices are widely used for digital books, because their characteristics benefit this type of media. We leave these printed bookswhich have a vast and rich content constantly evaluated over the years, being protagonists in several academic research -looking to expand and enrich its content on the tablet in order to add interactivity, video, image and sound . To substantiate our discussion, we use the Cognitive Theory of Multimedia Learning and its twelve principles for the development of a MultimediaInstruction that provides a significantly Multimedia Learning. To discuss this transposition, we researched on tablets that will be available at the public school and performed a content analysis on trigonometric functions sine and cosine in six books printed PNLD-IN 2009 or 2012 in order to meet the similarities in the treatment of the contents in different books. Once familiar with the protagonists (tablet and book), we performed the theoretical development of the transposition of the content.

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