Co-teaching is often considered the apex of instructional collaboration.  In my experience, while co-teaching is tremendously effective, it takes intentional planning and norming of practices in order to reach the potential of the models.  Below is an example of co-teaching resources I put together for our district to help teachers better understand the models and (more importantly) norm their collaborative practices as a unit.  I’m proud to say that our co-teaching practice is evolving measurably each year!