The purpose of the iE3 Project was to explore the effect of using a collaborative apprenticeship model on the integration of student-owned mobile devices into classroom instruction. The iE3 Project was designed to overcome perceived barriers that prevented teachers from using student-owned mobile devices in the classroom. Based on earlier work, teachers suggested those barriers were support, time, resources, and professional development. Thus, the iE3 Project was conducted to empower teachers initiating the use of student-owned mobile devices as instructional tools. The study is grounded in situated cognition theory, situated learning theory, social cultural theory, and extends Evan Glazer's study of collaborative apprenticeship in a "bring your own technology" (BYOT) school environment. The literature review includes relevant studies from such areas as providing teacher support, employing collaborative planning time, using mobile technology resources, and offering authentic professional development within situated contexts. Participants included K-8th grade teachers. The 11 "non-user" participants established roles as peer-teachers (PT) and worked collaboratively with 11 "mobile device user" teacher leaders (TL) for twelve weeks during the iEngage, iEducate, and iEmpower phases of the iE3 Project. Participants completed pre- and post-intervention Stages of Concern Questionnaires and Innovation Configuration Maps, engaged in collaborative planning time, posted collaborative weekly reflections and descriptions of digital images online, completed a Perceived User Level retrospective survey, and participated in semi-structured interviews. The results of the project indicated a collaborative apprenticeship model as implemented in the current project was successful in addressing perceived barriers and empowered teachers to use student-owned mobile devices as instructional tools. Generally, results showed PT made substantial gains in using student-owned devices during instruction; reduced instructional, management, and other concerns about using mobile devices; and transformed them in terms of their thinking about using mobile devices for classroom instruction. Moreover, the perceived barriers were mitigated by using the collaborative apprenticeship model. In the discussion, complementarity of the quantitative and qualitative data were discussed and connections were made to the extant literature. Additionally, lessons learned, limitations, implications for practice, and implications for additional action research were discussed.