Animated Paper Prototypes

We did a short post awhile back about the merits of paper prototyping.  We’ve gotten another recent inquiry about what paper prototyping looks like.  One of our fun rituals at lab sessions is constant peer testing (to test for understanding of learning concepts as well as flows/forms of interaction.  Before writing a lick of code for Overpass, we started with paper, markers, and human computers.  Here’s minute-long example of how that might play out:
 

 
 

And here’s a minute example of its eventual digital prototype: