This collection of videos from the Technology Integration Matrix (TIM) provides examples of mobile devices used in the K-12 classroom. The lessons range from entry level of technology integration up to the transformation level. To see the videos in the context of the TIM, visit the Technology Integration Matrix website (MyTechMatrix.org). The collection also includes classroom videos that have not been assigned a TIM level. These additional videos can be used in professional development activities affording teachers the opportunity to assess technology integration levels in a wide variety of classrooms.