These are improv games that teach players how to build an environment, as part of a Platform . By environment we mean defining where we are, and placing (mimed) props we in that location.
When working with groups new to improv, you may want to teach environment first, and then move on to Platform , by extending the where by incorporating the Who (and the Why).
Improv games in this category
Be master of mind rather than mastered by mind --- Zen saying