It has been pointed out that the LEGO ~ STORYTABLE "WORKSHOP" is in essence, a small-scale Puppet Workshop.
In both Legos and Storytable, the kids create the 'stage' with materials and props, and then use posable characters to retell the story. Whereas in a traditional puppet-retelling, the stage is a puppet stage.
Of course, it has also been pointed out that all of the above are subsets of the DRAMA Workshop ...which is why you sometimes see "puppets" as an option in a Drama workshop lesson.
Puppets and small-scale dramas with posable figures, along with options like acting or posing behind a "shadow screen" or in blacklight, allow students a degree of anonymity. This anonymity can be freeing especially among those students who are self-conscious and uncomfortable with moving in front of others. These small-scale options also treat scripts differently, as in drama kids tend to be holding on to a script rather than fully acting.