LEGOWorld: Repurposing Commodity Tools & Technologies to Create an Accessible and Customizable Programming Environment

Abstract

We explore how commodity objects and technologies can be repurposed to provide a multimodal programming environment that is accessible to children with visual impairments, flexible, and scalable to a variety of programming challenges. Our approach resorts to four main components: 1) a LEGO base plate where LEGO blocks can be assembled to create maps, which is flexible and robust for tactile recognition; 2) a tangible programming area where LEGOs, with 3D printed caps enriched with tactile icons, can be assembled to create a program; 3) alternatively, the program can be created through a voice dialogue; and 4) a low-cost OzoBot Bit. A preliminary study with educators suggests that the approach could be useful to a variety of developmental stages, is accessible and stimulating, and promising for CT training.