We present a methodology for building objects-to-think-computationally-
with and illustrate its application in developing our Escape Machine game. The input mechanism for this game is a tangible state machine built with Posey, our computationally enhanced construction kit. Through manipulating this state machine children create an algorithmic specification for the behavior of both the avatar
and its enemies in an attempt to navigate a maze without being eaten. We outline several strategies for success at Escape Machine and discuss how it embeds an important computational thinking concept in interaction with a tangible device.

Posey