How Have Rides Changed over the Years? 

It used to be that when you went on a roller coaster you sat in a square bucket that had a bench in it, pulled a bar over your lap, and on you went.  Now days, small changes have been made so that many of those "buckets" have been substituted with a smaller, individual seat (resembling more of a bike seat) and the bars are now full harnesses you pull over your head, to add additional safety measures.  

Rides that used to have you travel on water through a magical scene of mechanical figurines, have undergone dramatical changes, and now have movie screens you sit in front of while it makes you feel as if you were traveling in outer space and your seats moves and rattles as you get to rough terrain in the movie.  30 years ago, many would say something like this could not be possible.  But as technology has advanced it has redefined the amusement park world.  

This is similar in education.  It may be that a worksheet that used to be handed out has now been substituted by an online document posted in Canvas.  On a larger scale, it may be that a teacher can call another classroom, located in Spain, on Teams, to hold a conversation. Without technology, a task like this would not be possible and therefore would fall under the redefinition stage of SAMR.   Ideally, you would have a variety of tasks and assignments that span across the levels of SAMR.